4 20 1651 https://dev.geosciencecollections.milne-library.org/files/original/3ac77329c4c5c069bccdaf974144ae04.JPG def3ef4f854fa2e302507d3497b194e3 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2272 Height 1704 Bit Depth 8 Channels 3 https://dev.geosciencecollections.milne-library.org/files/original/0349f7990e6c5bc7f69b95b3290c0b4b.jpg a3b0a3189eed72fe69066d7acf314695 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (NAO) Ophiolite Suite -- Northern Apennines, Italy Description An account of the resource The suite consists of samples from an ophiolite suite that outcrops in 3 locations in the Apennine mountain range in northern Italy.Â The units are severely imbricated and folded.Â The units are Cretaceous-Eocene in age.Â The units consist of ultramafic rock, gabbro and peridotite instrusions, and basaltic magmas. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Spatial Coverage Spatial characteristics of the resource. Northern Apennines, Liguria Region, Italy Samples 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 15 are taken from the region around Bargone, Italy Samples 14, 16, 17, 18, 19, 20, and 21 are taken from the region around Sassello, Italy Sample 22 is taken from outside Genoa, Italy Date A point or period of time associated with an event in the lifecycle of the resource 1982 Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/" target="_blank">The Geneseo Geoscience Collection</a> Identifier An unambiguous reference to the resource within a given context NAO-01 to NAO-22 Temporal Coverage Temporal characteristics of the resource. Triassic - Eocene Accrual Method The method by which items are added to a collection. Purchased by Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Lagabrielle, Y.,Â and Cannat, M., 1990, Alpine Jurassic ophiolites resemble the modern central Atlantic basement: Geology, v. 18, p. 319-322 Link:Â <a href="http://geology.geoscienceworld.org/content/18/4/319.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This fairly short article gives some insight into the development of the North Apennine Ophiolites with a fairly recent view on the matter.</li> </ul> Additional Resources: Garuti, G., and Zaccarini, F., 2005, Minerals of Au, Ag and U in Volcanic-Rock-Associated Massive Sulfide Deposits of the Northern Apennine Ophiolite, Italy: The Canadian Mineralogist, v. 43, p. 935-950 DOI: <a href="http://dx.doi.org/10.2113/gscanmin.43.3.935" target="_blank">10.2113/gscanmin.43.3.935</a> <ul><li>This article explores the elemental composition of the North Apennine Ophiolite sequence and uses that to determine previous geologic events.</li> </ul> Garuti, G., Zaccarini, F., Scacchetti, M., and Bartoli, O., 2011, The Pb-rich sulfide veins in the Boccassuolo ophiolite: Implications for the geochemical evolution of the hydrothermal activity across the ocean-continent transition in the Ligurian Tethys (Northern-Apennine, Italy): Lithos, v. 124, p. 243-254 DOI:Â <a title="10.1016/j.lithos.2010.11.006" href="http://dx.doi.org/10.1016/j.lithos.2010.11.006" target="_blank">10.1016/j.lithos.2010.11.006</a> <ul><li>This article explores the chemical composition of the ophiolite sequence under a different name and ties it into the formation history.</li> </ul> Garzanti, E., Canclini, S., Foggia, F.M., and Petrella, N., 2002, Unraveling Magmatic and Orogenic Provenance in Modern Sand: The Back-Arc Side of the Apennine Thrust Belt, Italy: Journal of Sedimentary Research, v. 72, p. 2-17 DOI:Â <a title="10.1306/051801720002" href="http://dx.doi.org/10.1306/051801720002" target="_blank">10.1306/051801720002</a> <ul><li>This article goes into great detail on the provenance characteristics for a number of sands. including sands originating from the North Apennine Ophiolite sequence.</li> </ul> Cibin, U., Spadafora, E., Zuffa, G.G., and Castellarin, A., 2001, Continental collision history from arenites of episutural basins in the Northern Apennines, Italy: Geological Society of America Bulletin, v. 113, p. 4-19 Link: <a title="GeoScienceWorld" href="http://bulletin.geoscienceworld.org/content/113/1/4.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This article goes into detail about the deformations experienced by the North Apennine Ophiolites after the Eocene.</li> </ul> Rock A physical material with a mineral composition. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Antigoritic Serpentine Schist Description An account of the resource Antigorite, magnetite, ankeritic carbonate, diopside, tremolite. A very marked subsequent foliation nearly completely obliterates a previous initial foliation. Date A point or period of time associated with an event in the lifecycle of the resource no date Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/items/show/34">Northern Apennines Ophiolites Western Minerals Supplementary Information</a> Identifier An unambiguous reference to the resource within a given context NAO-17 Spatial Coverage Spatial characteristics of the resource. Urbe, Italy Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Antigorite Temporal Coverage Temporal characteristics of the resource. Cretaceous-Eocene https://dev.geosciencecollections.milne-library.org/files/original/71b8c1526094c3b03ef5540ac326c405.JPG 4c9bb6e0b4929c44f8e3c6003f27a019 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2272 Height 1704 Bit Depth 8 Channels 3 https://dev.geosciencecollections.milne-library.org/files/original/9fac6758ea0b3f781114904de12a7d3b.jpg 103b408a61817dd1117126169ea63bed Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (NAO) Ophiolite Suite -- Northern Apennines, Italy Description An account of the resource The suite consists of samples from an ophiolite suite that outcrops in 3 locations in the Apennine mountain range in northern Italy.Â The units are severely imbricated and folded.Â The units are Cretaceous-Eocene in age.Â The units consist of ultramafic rock, gabbro and peridotite instrusions, and basaltic magmas. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Spatial Coverage Spatial characteristics of the resource. Northern Apennines, Liguria Region, Italy Samples 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 15 are taken from the region around Bargone, Italy Samples 14, 16, 17, 18, 19, 20, and 21 are taken from the region around Sassello, Italy Sample 22 is taken from outside Genoa, Italy Date A point or period of time associated with an event in the lifecycle of the resource 1982 Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/" target="_blank">The Geneseo Geoscience Collection</a> Identifier An unambiguous reference to the resource within a given context NAO-01 to NAO-22 Temporal Coverage Temporal characteristics of the resource. Triassic - Eocene Accrual Method The method by which items are added to a collection. Purchased by Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Lagabrielle, Y.,Â and Cannat, M., 1990, Alpine Jurassic ophiolites resemble the modern central Atlantic basement: Geology, v. 18, p. 319-322 Link:Â <a href="http://geology.geoscienceworld.org/content/18/4/319.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This fairly short article gives some insight into the development of the North Apennine Ophiolites with a fairly recent view on the matter.</li> </ul> Additional Resources: Garuti, G., and Zaccarini, F., 2005, Minerals of Au, Ag and U in Volcanic-Rock-Associated Massive Sulfide Deposits of the Northern Apennine Ophiolite, Italy: The Canadian Mineralogist, v. 43, p. 935-950 DOI: <a href="http://dx.doi.org/10.2113/gscanmin.43.3.935" target="_blank">10.2113/gscanmin.43.3.935</a> <ul><li>This article explores the elemental composition of the North Apennine Ophiolite sequence and uses that to determine previous geologic events.</li> </ul> Garuti, G., Zaccarini, F., Scacchetti, M., and Bartoli, O., 2011, The Pb-rich sulfide veins in the Boccassuolo ophiolite: Implications for the geochemical evolution of the hydrothermal activity across the ocean-continent transition in the Ligurian Tethys (Northern-Apennine, Italy): Lithos, v. 124, p. 243-254 DOI:Â <a title="10.1016/j.lithos.2010.11.006" href="http://dx.doi.org/10.1016/j.lithos.2010.11.006" target="_blank">10.1016/j.lithos.2010.11.006</a> <ul><li>This article explores the chemical composition of the ophiolite sequence under a different name and ties it into the formation history.</li> </ul> Garzanti, E., Canclini, S., Foggia, F.M., and Petrella, N., 2002, Unraveling Magmatic and Orogenic Provenance in Modern Sand: The Back-Arc Side of the Apennine Thrust Belt, Italy: Journal of Sedimentary Research, v. 72, p. 2-17 DOI:Â <a title="10.1306/051801720002" href="http://dx.doi.org/10.1306/051801720002" target="_blank">10.1306/051801720002</a> <ul><li>This article goes into great detail on the provenance characteristics for a number of sands. including sands originating from the North Apennine Ophiolite sequence.</li> </ul> Cibin, U., Spadafora, E., Zuffa, G.G., and Castellarin, A., 2001, Continental collision history from arenites of episutural basins in the Northern Apennines, Italy: Geological Society of America Bulletin, v. 113, p. 4-19 Link: <a title="GeoScienceWorld" href="http://bulletin.geoscienceworld.org/content/113/1/4.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This article goes into detail about the deformations experienced by the North Apennine Ophiolites after the Eocene.</li> </ul> Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Ecologitic Rhodingite Description An account of the resource Grossular-andradite garnet, diopside, chlorite, sodic pyroxene, vesuvianite, titansphene, opaques. Traces of primitive gabbroid structure with diablastic development of the newlyformed phases and pseudomorphs of sodic pyroxene on primary pyroxenes. The presence of sodic pyroxene is an index of incomplete rhodingitization. Date A point or period of time associated with an event in the lifecycle of the resource no date Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/items/show/34">Northern Apennines Ophiolites Western Minerals Supplementary Information</a> Identifier An unambiguous reference to the resource within a given context NAO-18 Spatial Coverage Spatial characteristics of the resource. Urbe , Italy Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Temporal Coverage Temporal characteristics of the resource. Cretaceous-Eocene https://dev.geosciencecollections.milne-library.org/files/original/e190aa14839c29dfaeed28be02e3e89a.JPG 4bcda2b1ef3fda63055702323ae08ecf Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2272 Height 1704 Bit Depth 8 Channels 3 https://dev.geosciencecollections.milne-library.org/files/original/c28860c289d9846309e8f6ede9494362.jpg 43fd8f2440dae16c75e64b4002beee5e Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (NAO) Ophiolite Suite -- Northern Apennines, Italy Description An account of the resource The suite consists of samples from an ophiolite suite that outcrops in 3 locations in the Apennine mountain range in northern Italy.Â The units are severely imbricated and folded.Â The units are Cretaceous-Eocene in age.Â The units consist of ultramafic rock, gabbro and peridotite instrusions, and basaltic magmas. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Spatial Coverage Spatial characteristics of the resource. Northern Apennines, Liguria Region, Italy Samples 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 15 are taken from the region around Bargone, Italy Samples 14, 16, 17, 18, 19, 20, and 21 are taken from the region around Sassello, Italy Sample 22 is taken from outside Genoa, Italy Date A point or period of time associated with an event in the lifecycle of the resource 1982 Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/" target="_blank">The Geneseo Geoscience Collection</a> Identifier An unambiguous reference to the resource within a given context NAO-01 to NAO-22 Temporal Coverage Temporal characteristics of the resource. Triassic - Eocene Accrual Method The method by which items are added to a collection. Purchased by Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Lagabrielle, Y.,Â and Cannat, M., 1990, Alpine Jurassic ophiolites resemble the modern central Atlantic basement: Geology, v. 18, p. 319-322 Link:Â <a href="http://geology.geoscienceworld.org/content/18/4/319.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This fairly short article gives some insight into the development of the North Apennine Ophiolites with a fairly recent view on the matter.</li> </ul> Additional Resources: Garuti, G., and Zaccarini, F., 2005, Minerals of Au, Ag and U in Volcanic-Rock-Associated Massive Sulfide Deposits of the Northern Apennine Ophiolite, Italy: The Canadian Mineralogist, v. 43, p. 935-950 DOI: <a href="http://dx.doi.org/10.2113/gscanmin.43.3.935" target="_blank">10.2113/gscanmin.43.3.935</a> <ul><li>This article explores the elemental composition of the North Apennine Ophiolite sequence and uses that to determine previous geologic events.</li> </ul> Garuti, G., Zaccarini, F., Scacchetti, M., and Bartoli, O., 2011, The Pb-rich sulfide veins in the Boccassuolo ophiolite: Implications for the geochemical evolution of the hydrothermal activity across the ocean-continent transition in the Ligurian Tethys (Northern-Apennine, Italy): Lithos, v. 124, p. 243-254 DOI:Â <a title="10.1016/j.lithos.2010.11.006" href="http://dx.doi.org/10.1016/j.lithos.2010.11.006" target="_blank">10.1016/j.lithos.2010.11.006</a> <ul><li>This article explores the chemical composition of the ophiolite sequence under a different name and ties it into the formation history.</li> </ul> Garzanti, E., Canclini, S., Foggia, F.M., and Petrella, N., 2002, Unraveling Magmatic and Orogenic Provenance in Modern Sand: The Back-Arc Side of the Apennine Thrust Belt, Italy: Journal of Sedimentary Research, v. 72, p. 2-17 DOI:Â <a title="10.1306/051801720002" href="http://dx.doi.org/10.1306/051801720002" target="_blank">10.1306/051801720002</a> <ul><li>This article goes into great detail on the provenance characteristics for a number of sands. including sands originating from the North Apennine Ophiolite sequence.</li> </ul> Cibin, U., Spadafora, E., Zuffa, G.G., and Castellarin, A., 2001, Continental collision history from arenites of episutural basins in the Northern Apennines, Italy: Geological Society of America Bulletin, v. 113, p. 4-19 Link: <a title="GeoScienceWorld" href="http://bulletin.geoscienceworld.org/content/113/1/4.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This article goes into detail about the deformations experienced by the North Apennine Ophiolites after the Eocene.</li> </ul> Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Prasinite Description An account of the resource Relics of augitic clinopyroxene, albite, actinolite, chlorite, clinozoisite, and sphene. Relics of the clinopyroxene of the original dolerite are in part substituted by chlorite and actinolite in a granoblastic and metablastic matrix of albite, clinozoisite, sphene and chlorite. Date A point or period of time associated with an event in the lifecycle of the resource no date Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/items/show/34">Northern Apennines Ophiolites Western Minerals Supplementary Information</a> Identifier An unambiguous reference to the resource within a given context NAO-19 Spatial Coverage Spatial characteristics of the resource. Sassello , Italy Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Greenschist Temporal Coverage Temporal characteristics of the resource. Cretaceous-Eocene https://dev.geosciencecollections.milne-library.org/files/original/fc95d76a133daec410282f5fb6451dd7.JPG a1a2e96e2249bc4387f9c5285305823f Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2272 Height 1704 Bit Depth 8 Channels 3 https://dev.geosciencecollections.milne-library.org/files/original/5b73baca9f59cccad3ad4dc8a2998f0b.jpg 964b1f5af3d5341a9296c749b8466b14 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (NAO) Ophiolite Suite -- Northern Apennines, Italy Description An account of the resource The suite consists of samples from an ophiolite suite that outcrops in 3 locations in the Apennine mountain range in northern Italy.Â The units are severely imbricated and folded.Â The units are Cretaceous-Eocene in age.Â The units consist of ultramafic rock, gabbro and peridotite instrusions, and basaltic magmas. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Spatial Coverage Spatial characteristics of the resource. Northern Apennines, Liguria Region, Italy Samples 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 15 are taken from the region around Bargone, Italy Samples 14, 16, 17, 18, 19, 20, and 21 are taken from the region around Sassello, Italy Sample 22 is taken from outside Genoa, Italy Date A point or period of time associated with an event in the lifecycle of the resource 1982 Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/" target="_blank">The Geneseo Geoscience Collection</a> Identifier An unambiguous reference to the resource within a given context NAO-01 to NAO-22 Temporal Coverage Temporal characteristics of the resource. Triassic - Eocene Accrual Method The method by which items are added to a collection. Purchased by Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Lagabrielle, Y.,Â and Cannat, M., 1990, Alpine Jurassic ophiolites resemble the modern central Atlantic basement: Geology, v. 18, p. 319-322 Link:Â <a href="http://geology.geoscienceworld.org/content/18/4/319.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This fairly short article gives some insight into the development of the North Apennine Ophiolites with a fairly recent view on the matter.</li> </ul> Additional Resources: Garuti, G., and Zaccarini, F., 2005, Minerals of Au, Ag and U in Volcanic-Rock-Associated Massive Sulfide Deposits of the Northern Apennine Ophiolite, Italy: The Canadian Mineralogist, v. 43, p. 935-950 DOI: <a href="http://dx.doi.org/10.2113/gscanmin.43.3.935" target="_blank">10.2113/gscanmin.43.3.935</a> <ul><li>This article explores the elemental composition of the North Apennine Ophiolite sequence and uses that to determine previous geologic events.</li> </ul> Garuti, G., Zaccarini, F., Scacchetti, M., and Bartoli, O., 2011, The Pb-rich sulfide veins in the Boccassuolo ophiolite: Implications for the geochemical evolution of the hydrothermal activity across the ocean-continent transition in the Ligurian Tethys (Northern-Apennine, Italy): Lithos, v. 124, p. 243-254 DOI:Â <a title="10.1016/j.lithos.2010.11.006" href="http://dx.doi.org/10.1016/j.lithos.2010.11.006" target="_blank">10.1016/j.lithos.2010.11.006</a> <ul><li>This article explores the chemical composition of the ophiolite sequence under a different name and ties it into the formation history.</li> </ul> Garzanti, E., Canclini, S., Foggia, F.M., and Petrella, N., 2002, Unraveling Magmatic and Orogenic Provenance in Modern Sand: The Back-Arc Side of the Apennine Thrust Belt, Italy: Journal of Sedimentary Research, v. 72, p. 2-17 DOI:Â <a title="10.1306/051801720002" href="http://dx.doi.org/10.1306/051801720002" target="_blank">10.1306/051801720002</a> <ul><li>This article goes into great detail on the provenance characteristics for a number of sands. including sands originating from the North Apennine Ophiolite sequence.</li> </ul> Cibin, U., Spadafora, E., Zuffa, G.G., and Castellarin, A., 2001, Continental collision history from arenites of episutural basins in the Northern Apennines, Italy: Geological Society of America Bulletin, v. 113, p. 4-19 Link: <a title="GeoScienceWorld" href="http://bulletin.geoscienceworld.org/content/113/1/4.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This article goes into detail about the deformations experienced by the North Apennine Ophiolites after the Eocene.</li> </ul> Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Oficarbonatite Description An account of the resource Carbonates (calcite and dolomite), chlorites, garnets, diopside, epidote, serpentine, amphiboles. Very variable compositions in same hand specimen. The rock derives from metamorphism of oficalcitic rocks developed at very high pressures and medium temperatures. Date A point or period of time associated with an event in the lifecycle of the resource no date Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/items/show/34">Northern Apennines Ophiolites Western Minerals Supplementary Information</a> Identifier An unambiguous reference to the resource within a given context NAO-20 Spatial Coverage Spatial characteristics of the resource. Sassello , Italy Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Calcite and Dolomite Temporal Coverage Temporal characteristics of the resource. Cretaceous-Eocene https://dev.geosciencecollections.milne-library.org/files/original/6a9926b4d56d1bb7bf0ac26f2bb1eb21.JPG 35692fba966e785bbad7f2cb1eaaf7ca Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2272 Height 1704 Bit Depth 8 Channels 3 https://dev.geosciencecollections.milne-library.org/files/original/57c2825727a0c7874c17a4553df9124a.jpg 138213d9b6c79f7e804e466698e0ee17 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (NAO) Ophiolite Suite -- Northern Apennines, Italy Description An account of the resource The suite consists of samples from an ophiolite suite that outcrops in 3 locations in the Apennine mountain range in northern Italy.Â The units are severely imbricated and folded.Â The units are Cretaceous-Eocene in age.Â The units consist of ultramafic rock, gabbro and peridotite instrusions, and basaltic magmas. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Spatial Coverage Spatial characteristics of the resource. Northern Apennines, Liguria Region, Italy Samples 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 15 are taken from the region around Bargone, Italy Samples 14, 16, 17, 18, 19, 20, and 21 are taken from the region around Sassello, Italy Sample 22 is taken from outside Genoa, Italy Date A point or period of time associated with an event in the lifecycle of the resource 1982 Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/" target="_blank">The Geneseo Geoscience Collection</a> Identifier An unambiguous reference to the resource within a given context NAO-01 to NAO-22 Temporal Coverage Temporal characteristics of the resource. Triassic - Eocene Accrual Method The method by which items are added to a collection. Purchased by Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Lagabrielle, Y.,Â and Cannat, M., 1990, Alpine Jurassic ophiolites resemble the modern central Atlantic basement: Geology, v. 18, p. 319-322 Link:Â <a href="http://geology.geoscienceworld.org/content/18/4/319.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This fairly short article gives some insight into the development of the North Apennine Ophiolites with a fairly recent view on the matter.</li> </ul> Additional Resources: Garuti, G., and Zaccarini, F., 2005, Minerals of Au, Ag and U in Volcanic-Rock-Associated Massive Sulfide Deposits of the Northern Apennine Ophiolite, Italy: The Canadian Mineralogist, v. 43, p. 935-950 DOI: <a href="http://dx.doi.org/10.2113/gscanmin.43.3.935" target="_blank">10.2113/gscanmin.43.3.935</a> <ul><li>This article explores the elemental composition of the North Apennine Ophiolite sequence and uses that to determine previous geologic events.</li> </ul> Garuti, G., Zaccarini, F., Scacchetti, M., and Bartoli, O., 2011, The Pb-rich sulfide veins in the Boccassuolo ophiolite: Implications for the geochemical evolution of the hydrothermal activity across the ocean-continent transition in the Ligurian Tethys (Northern-Apennine, Italy): Lithos, v. 124, p. 243-254 DOI:Â <a title="10.1016/j.lithos.2010.11.006" href="http://dx.doi.org/10.1016/j.lithos.2010.11.006" target="_blank">10.1016/j.lithos.2010.11.006</a> <ul><li>This article explores the chemical composition of the ophiolite sequence under a different name and ties it into the formation history.</li> </ul> Garzanti, E., Canclini, S., Foggia, F.M., and Petrella, N., 2002, Unraveling Magmatic and Orogenic Provenance in Modern Sand: The Back-Arc Side of the Apennine Thrust Belt, Italy: Journal of Sedimentary Research, v. 72, p. 2-17 DOI:Â <a title="10.1306/051801720002" href="http://dx.doi.org/10.1306/051801720002" target="_blank">10.1306/051801720002</a> <ul><li>This article goes into great detail on the provenance characteristics for a number of sands. including sands originating from the North Apennine Ophiolite sequence.</li> </ul> Cibin, U., Spadafora, E., Zuffa, G.G., and Castellarin, A., 2001, Continental collision history from arenites of episutural basins in the Northern Apennines, Italy: Geological Society of America Bulletin, v. 113, p. 4-19 Link: <a title="GeoScienceWorld" href="http://bulletin.geoscienceworld.org/content/113/1/4.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This article goes into detail about the deformations experienced by the North Apennine Ophiolites after the Eocene.</li> </ul> Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context NAO-21 Title A name given to the resource Metagabbro in blueschist facies Spatial Coverage Spatial characteristics of the resource. Sassello , Italy Date A point or period of time associated with an event in the lifecycle of the resource no date Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/items/show/34">Northern Apennines Ophiolites Western Minerals Supplementary Information</a> Description An account of the resource Sodic pyroxene, glaucophane, lawsonite, chlorite. Pseudomorphs of sodic pyroxene and glaucophane,chlorite on original augitic pyroxenes; pseudomorphs of lawsonite and glaucophane on original plagioclase. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Gabbro Temporal Coverage Temporal characteristics of the resource. Cretaceous-Eocene https://dev.geosciencecollections.milne-library.org/files/original/915f6c7bc3fa7a4ce14f3453f2a4238f.JPG 2098f75dd503b38d7710fca0cdcdfa00 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2272 Height 1704 Bit Depth 8 Channels 3 https://dev.geosciencecollections.milne-library.org/files/original/8df2e7482e298b87610e7eb924441438.jpg 6482c221d7b36107814a728781db336f Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (NAO) Ophiolite Suite -- Northern Apennines, Italy Description An account of the resource The suite consists of samples from an ophiolite suite that outcrops in 3 locations in the Apennine mountain range in northern Italy.Â The units are severely imbricated and folded.Â The units are Cretaceous-Eocene in age.Â The units consist of ultramafic rock, gabbro and peridotite instrusions, and basaltic magmas. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Spatial Coverage Spatial characteristics of the resource. Northern Apennines, Liguria Region, Italy Samples 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 15 are taken from the region around Bargone, Italy Samples 14, 16, 17, 18, 19, 20, and 21 are taken from the region around Sassello, Italy Sample 22 is taken from outside Genoa, Italy Date A point or period of time associated with an event in the lifecycle of the resource 1982 Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/" target="_blank">The Geneseo Geoscience Collection</a> Identifier An unambiguous reference to the resource within a given context NAO-01 to NAO-22 Temporal Coverage Temporal characteristics of the resource. Triassic - Eocene Accrual Method The method by which items are added to a collection. Purchased by Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Lagabrielle, Y.,Â and Cannat, M., 1990, Alpine Jurassic ophiolites resemble the modern central Atlantic basement: Geology, v. 18, p. 319-322 Link:Â <a href="http://geology.geoscienceworld.org/content/18/4/319.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This fairly short article gives some insight into the development of the North Apennine Ophiolites with a fairly recent view on the matter.</li> </ul> Additional Resources: Garuti, G., and Zaccarini, F., 2005, Minerals of Au, Ag and U in Volcanic-Rock-Associated Massive Sulfide Deposits of the Northern Apennine Ophiolite, Italy: The Canadian Mineralogist, v. 43, p. 935-950 DOI: <a href="http://dx.doi.org/10.2113/gscanmin.43.3.935" target="_blank">10.2113/gscanmin.43.3.935</a> <ul><li>This article explores the elemental composition of the North Apennine Ophiolite sequence and uses that to determine previous geologic events.</li> </ul> Garuti, G., Zaccarini, F., Scacchetti, M., and Bartoli, O., 2011, The Pb-rich sulfide veins in the Boccassuolo ophiolite: Implications for the geochemical evolution of the hydrothermal activity across the ocean-continent transition in the Ligurian Tethys (Northern-Apennine, Italy): Lithos, v. 124, p. 243-254 DOI:Â <a title="10.1016/j.lithos.2010.11.006" href="http://dx.doi.org/10.1016/j.lithos.2010.11.006" target="_blank">10.1016/j.lithos.2010.11.006</a> <ul><li>This article explores the chemical composition of the ophiolite sequence under a different name and ties it into the formation history.</li> </ul> Garzanti, E., Canclini, S., Foggia, F.M., and Petrella, N., 2002, Unraveling Magmatic and Orogenic Provenance in Modern Sand: The Back-Arc Side of the Apennine Thrust Belt, Italy: Journal of Sedimentary Research, v. 72, p. 2-17 DOI:Â <a title="10.1306/051801720002" href="http://dx.doi.org/10.1306/051801720002" target="_blank">10.1306/051801720002</a> <ul><li>This article goes into great detail on the provenance characteristics for a number of sands. including sands originating from the North Apennine Ophiolite sequence.</li> </ul> Cibin, U., Spadafora, E., Zuffa, G.G., and Castellarin, A., 2001, Continental collision history from arenites of episutural basins in the Northern Apennines, Italy: Geological Society of America Bulletin, v. 113, p. 4-19 Link: <a title="GeoScienceWorld" href="http://bulletin.geoscienceworld.org/content/113/1/4.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This article goes into detail about the deformations experienced by the North Apennine Ophiolites after the Eocene.</li> </ul> Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Meta Fe-Gabbro in blueschist facies Description An account of the resource Albite, Na-amphiboles (from Mg-riebeckite to glaucophane, epidote, aegirinic pyroxene, chlorite, ilmenite, tspesphene, apatite, lawsonite. Pseudomorphic relations of the metamorphic paragenesis on the substituted primary phases. Sometimes lawsonite is present with a metastable characteristic. Date A point or period of time associated with an event in the lifecycle of the resource no date Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/items/show/34">Northern Apennines Ophiolites Western Minerals Supplementary Information</a> Identifier An unambiguous reference to the resource within a given context NAO-22 Spatial Coverage Spatial characteristics of the resource. Pegli , Italy Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Gabbro Temporal Coverage Temporal characteristics of the resource. Cretaceous-Eocene https://dev.geosciencecollections.milne-library.org/files/original/7692356dafeef9106797fc2a6441a736.pdf 0cc3b1da66719d7718e950a8f59d630a Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Document A resource containing textual data. Note that facsimiles or images of texts are still of the genre text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Adirondack Highlands, New York Western Minerals Supplementary Materials Description An account of the resource OCR PDF of supplemental information for the Anorthosite-Charnockite Metamorphic Suite-Adirondack Mountains, New York collection. Creator An entity primarily responsible for making the resource Western Minerals Inc. Publisher An entity responsible for making the resource available Western Minerals Inc. Has Format A related resource that is substantially the same as the pre-existing described resource, but in another format. PDF Identifier An unambiguous reference to the resource within a given context AD suite Spatial Coverage Spatial characteristics of the resource. Adirondack Mountains, New York Temporal Coverage Temporal characteristics of the resource. Precambrian Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/3bb0ad343f67ea05ebdde965f735a65e.pdf 65602fa05783ab47862834d211ef8125 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (PPC) Franciscan Assemblage Suite -- Panoche Pass, California Description An account of the resource This collection consists of 20 samples taken from Panoche Pass, California. These samples are representative of rocks that can be found in the Franciscan assemblage throughout California. These rocks made up the accretionary wedge during the Nevadan Orogeny and were accreted onto the west coast of North America. Rocks in this suite range from seafloor sediments all the way to eclogite facies metamorphics. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Document A resource containing textual data. Note that facsimiles or images of texts are still of the genre text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Panoche Pass Western Minerals Supplementary Materials Description An account of the resource OCR PDF of supplemental information for the Panoche Pass, California collection. Creator An entity primarily responsible for making the resource Western Minerals Inc Publisher An entity responsible for making the resource available Western Minerals Inc Date A point or period of time associated with an event in the lifecycle of the resource no date Date Copyrighted Date of copyright. no date Identifier An unambiguous reference to the resource within a given context PPCsuite Spatial Coverage Spatial characteristics of the resource. Panoche Pass, California Temporal Coverage Temporal characteristics of the resource. Franciscan https://dev.geosciencecollections.milne-library.org/files/original/c0351119e3ab69be5ce85af0cb4ec060.JPG 4af0c2e47e388cdfd33d41651e2531f4 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Pyroxene-quartz-plagioclase gneiss https://dev.geosciencecollections.milne-library.org/files/original/4fe623be2c157ddd0340c6be827e2539.jpg 5c5e48d65712e95a15e68319c40dff1d Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Pyroxene-quartz-plagioclase gneiss-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/35e3dd310bd3c3e899e40cf3c959c572.jpg a7121d94bd497383f4df13384e6dfa4b Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Pyroxene-quartz-plagioclase gneiss-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Royal Mountain Member, Green Lake Formation Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-3 Title A name given to the resource Pyroxene-quartz-plagioclase gneiss Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected from a large road cut on the east side of NY routes 10 &29A across from the Canada Lake Store. Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource This specimen consists of 50-60% andesine, 20-30% quartz, and minor pyroxene and hornblende. Associated with this lithology are 2-6 inch layers of pyroxene-plagioclase granulite and amphibolite. It is believed that the Royal Mountain Member gneiss represents a metamorphosed layered instrusion of overall tonalitic composition. Numerous internal features, such as xenoliths and possible slump structures, support this hypothesis. Thin section shows plagioclase, quartz and hornblende. Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/f0a410205c1ce8222501a42321cf5f20.JPG 8306991b18c34a3331fef8053691bfe2 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Megacrystic potassium feldspar gneiss https://dev.geosciencecollections.milne-library.org/files/original/aaf45459ee05d301a5804980895c57ea.jpg 48903f3c3a5d638d464a4378adda2f11 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Megacrystic potassium feldspar gneiss-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/ed8c33af120ac5561d52280a3d0ee813.jpg 281df6a3807efc854e8f8f7b1524281c Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Megacrystic potassium feldspar gneiss-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Rooster Hill Formation Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-5 Title A name given to the resource Megacrystic potassium feldspar gneiss Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected from a road cut 2.25 miles north of Hamilton-Fulton counties line at sharp curve on NY Route 10, approximately 5.5 miles north of Junction wjth Route 29A. Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource This lithology is characterized by 1-4 inch long megacrysts of microperthite in a groundmass of quartz, oligoclase, hornblende, orthopyroxene, garnet, and oxide. Although the contacts of this unit are everywhere conformable, the rock is believed to represent a metamorphosed igneous plutonic rock. Similar lithologies are present at other stratigraphic horizons in the Adirondacks. In the Northwest Adirondack Lowlands, Buddington referred to a similar lithology as the Hermon Granite Gneiss. The present samples would be more appropriately referred to as metamorphosed quartz-monzonites. Sporadic occurrences of orthopyroxene indicate that, locally at least, the lithologies are charnockitic. Thin section shows plagioclase, quartz, hornblende and orthopyroxene. Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/2adcac723fdc1268058a3702a7877a3c.JPG 4c0edaae61c5bbcf0e6e67426e4085f3 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Orthopyroxene gabbro https://dev.geosciencecollections.milne-library.org/files/original/f3abdd9d166ce384fc43f1973d147efc.jpg 12d97b0385dbbda29c92729b9b3f5e45 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Orthopyroxene gabbro-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/12ee63623fcc09d5a5bfee4c67c7eff4.jpg b640c6dc08295cb64454a0bb094f4c49 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Orthopyroxene gabbro-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Orthopyroxene gabbro Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Identifier An unambiguous reference to the resource within a given context AD-6 Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected from a road cut on NY Route 10 approximately 1/2 mile north of Kennels Pond. Temporal Coverage Temporal characteristics of the resource. Precambrian Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource This specimen is typical of the saturated gabbros of the Adirondacks. The plagioclases are generally in the range of Anâ‚„â‚€ and the orthopyroxenes average close to Enâ‚†â‚€. Antiperthite is locally developed. Scattered grains of ilmenite and garnet occur. These gabbros may be genetically related to the anorthosites of the region. Thin section shows plagioclase, orthopyroxene and hornblende. Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/2bea7419abf55b6c70be5b8551236579.JPG beba72d70c943a9e1cfbfd3061e3f209 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Marble https://dev.geosciencecollections.milne-library.org/files/original/146ebb8a0bc09935bd7c9db7343c5763.jpg 3ce5e7b003db7855a622769873ea97cd Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Marble-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/ec6061978803711237eef40f1226bf46.jpg 90949bc30eede2a4b4aff1427b67c495 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Marble-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Blue Mountain Lake Formation Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-7 Title A name given to the resource Marble Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected on NY Route 30 from a large road cut 3.1 miles east of Speculator, NY. Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource This calcite marble is typical of most Adirondack metacarbonates. In the majority of instances, original dolomite has reacted to yield calcsilicates. Also present in these specimens are small, serpentinized droplets which may originally have been diopside or forsterite. Remnant grains of each of these minerals have been found in the marble. Accessory minerals are graphite, tourmaline, sphene, and sulfides. Adirondack marbles rarely occur by themselves. Rather, they tend to be interlayered with garnetiferous amphibolites similar to AD-10 (but not necessarily of igneous origin) and calcsilicates such as specimens AD-8 and AD-9. Quartzites and metapelitic layers occur with the marbles. Thin section shows dolomite and serpentinized diospide Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/0701f343c92a9d888c6945b14790ce24.JPG 99b931ed0659a972e1c708146127bd8a Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Diopsidite https://dev.geosciencecollections.milne-library.org/files/original/f676c00378a8d1da9f9cc8700f6fb8f5.jpg 68c7a6db822174a728f4fdb55d7c4395 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Diopsidite-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/0a4cab75d4588e2f76fcf12eae8b9cb1.jpg 4b16ecb02de97dfc1b1ae36400e8f117 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Diopsidite-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-9 Title A name given to the resource Diopsidite Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected on NY Route 30 from the south end of a road cut approximately 6 miles northeast of Speculator, NY. Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource Pods and lenses of green diopsidite commonly occur along with the marbles. They are often composed of over 90% diopside. Thin section contains diopside. Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/ea78859d9629f376eb6b63aa83c1bc08.JPG 2095bccd33c278c4f7c246c5d81ffd14 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Garnetiferous amphibolite https://dev.geosciencecollections.milne-library.org/files/original/a32c1b860e768faf6d320ef063a1f45d.jpg 113acd646dcdd4f22828b1184a515f9f Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Garnetiferous amphibolite-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/1330ba6e5fce92814e53bd8285d606b8.jpg 3b67524961bc592cec53832ce7276239 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Garnetiferous amphibolite-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-10 Title A name given to the resource Garnetiferous amphibolite Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected on NY Route 30 from a road cut 0.9 miles north of Speculator, NY. Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New Yorks</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource This specimen is similar to the famous garnet deposits at Barton Mines at Gore Mountain. The garnets at Gore Mountain can attain diameters of 3 feet. At the Speculator road cut, garnet of 8-10 inches in diameter have been found, but smaller examples were considered to be best suited for the purposes of this suite. Both at Gore Mountain and Speculator, the original rock can be shown to have been an olivine metagabbro. The present mineralogy consists of garnet, hornblende, and plagioclase with the development of narrow rims of very anorthitic plagioclase (Anâ‚ˆâ‚€) surrounding many of the garnets. In addition, orthopyroxene locally replaces hornblende near the plagioclase rims. The following information is from the original OCR document: The origin of the garnetiferous amphibolites has been discussed by Bartholome, "Genesis of the Gore Mountain Garnet Deposit", 1960, Economic Geology, v. 55, p. 255-277. The rims of calcic plagioclase and associated orthopyroxene has been discussed by deWaard, "The Occurrence of Garnet in the Granulite Facies of the Adirondack Highlands, " 1965, Journal of Petrology, v.6, p. 165-191. DeWaard shows convincingly that these rims are formed during the reaction hornblende + garnet + quartz = orthopyroxene + plagioclase + Hâ‚‚O. Thin section shows plagioclase, hornblende and garnet. Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/2ec6b07ab95c75d72406e9d07cb086d7.JPG 679414b2bb44a18076d2a675c1622f09 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Two-pyroxene-plagioclase granulite https://dev.geosciencecollections.milne-library.org/files/original/7eac3df37bf17d1b88f772b92cf911d6.jpg 6ac7ba0d7c37f54462ad12c115eeea78 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Two-pyroxene-plagioclase granulite-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/f7f7e25e41116cec953a4a8c5257f5f4.jpg aedd48504dfa16eeb8cc1c92a5fd8210 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Two-pyroxene-plagioclase granulite-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Sacandaga Formation Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-12 Title A name given to the resource Two-pyroxene-plagioclase granulite Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected on NY Route 30 from the west side of a road cut just north of Pumpkin Hollow. Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource The Sacandaga Formation consists of a well layered series of dark granulites (AD-12) and leucogneisses (AD-13). Orthopyroxene is generally present in greater quantity than clinopyroxene. It is not known whether these rocks are metasedimentary or metaigneous. They are strongly foliated. Thin section shows plagioclase (one with perthitic texture), orthopyroxene and quartz. Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/f3cd5ef6b33efe5d28b3abfda3a9a0e6.JPG 7c83e4888b0e8f2c477071b8934fb365 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Quartz-microcline-diopsite gneiss https://dev.geosciencecollections.milne-library.org/files/original/b4b6f8f6169e40f388c92cebe541cd52.jpg ac3ba9a46bedb0a6fcecada0d79ca8b6 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Quartz-microcline-diopsite gneiss-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/9c32374032a177b6785525de72afc37c.jpg 6cdccbb01b41d1cd8b1b6cd38594c9b4 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Quartz-microcline-diopsite gneiss-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-15 Title A name given to the resource Quartz-microcline-diopsite gneiss Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected on NY Route 30 from a road cut approximately just west of the parking area along the north shore of Mason Lake (Indian Lake Quadrant). Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1980 Description An account of the resource This specimen displays an unusual and distinctive lithology that occurs primarily in lower, marble-rich units (for example, the Cedar River Formation). Thin section shows quartz, K-feldspar and clinopyroxene. https://dev.geosciencecollections.milne-library.org/files/original/fa24a2fe2f70172919a373084ac3aad9.JPG c7865728396a17d1b36ea110ba174924 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Garnetiferous olivine metagabbro https://dev.geosciencecollections.milne-library.org/files/original/1656345627e043ab70eb3416d938d095.jpg ac749bd71491acb5353ef7cab1cd89c0 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Garnetiferous olivine metagabbro-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/451dc72c83d549fd303d4fdca20465f2.jpg 2baba133eb37182f0eed41ba9bd52453 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Garnetiferous olivine metagabbro-thin section plane polarized light https://dev.geosciencecollections.milne-library.org/files/original/b740885228d58c48c4b88d4a3d8a6698.jpg 1f5221cb51cb8740580ef6617d77c0bf Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Garnetiferous olivine metagabbro-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/39c304157f9da14d8901aa082555790c.jpg 6361cd1f65598cd34c8e9fe23b55daf0 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Garnetiferous olivine metagabbro-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-16 Title A name given to the resource Garnetiferous olivine metagabbro Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected on NY Route 418 from a large road cut (south side), 3 miles west of the junction with highway 7 in Warrensburg, NY. Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource This specimen is typical of the olivine metagabbros that occur throughout the Adirondacks. These rocks are of great petrologic interest for they contain classic examples of garnet coronas and spinel-clouded plagioclase. Note the preservation of ophitic and sub-ophitic igneous textures even though these rocks have experienced granulite facies conditions. A magnificent example of transition to eclogite facies. The following information is from the original OCR document: Detailed reactions accounting for both metamorphic assemblages and textures are developed in McLelland and Whitney, "A Generalized Garnet-Forming Reaction for Metamorphic Rocks in the Adirondacks," 1980, Contributions to Mineralogy and Petrology, v.72, p. 111-122. Explanations for a number of metamorphic textures in these rocks can be found in McLelland and Whitney, "Compositional Controls On Spinel and Garnet Formation in Plagioclase of Olivine Metagabbros," 1980, Contributions to Mineralogy and Petrology. The first 2 thin sections show a plagioclase lath and a garnet with plagioclase and olivine surrounding it. The second 2 thin sections show a garnet with plagioclase corona and olivine crystals surrounding the garnet. Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/b66c829d80ead6b66e239c3a316c2926.JPG 450b1b31931b23de5f700a9f21a29816 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Coarse anorthosite https://dev.geosciencecollections.milne-library.org/files/original/d5030aeecf15ad495fbb69a15d86971f.jpg 268eebb1c3e658f797dd95ad167f4aa6 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Coarse anorthosite-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/15e33953ad30a1987f8f7847d1853f19.jpg cd8b09a0730af338bc2a09c1c479ea10 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Coarse anorthosite-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-18 Title A name given to the resource Coarse anorthosite Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected from a massive outcrop on NY Route 3, about 5 miles south of Saranac Lake. Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource This coarse-grained specimen is typical of the massive, homogeneous anorthosite that occurs within the Marcy Massif and underlies the High Peaks region of the Adirondacks. The anorthosite from Route 3 is best represented by analyses 5-L and 8, Table 3, Buddington (1939). Also by analyses A, 16, and 17, Table 4, p. 3 , and by Table 5, p. 32, Buddington (1939). Thin section shows plagioclase, clinopyroxene and ilmenite. Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/182aaf714d4454c8b825a2d627f36670.JPG 5fe5fe345302c85818440bd4b27c372e Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Quartzite https://dev.geosciencecollections.milne-library.org/files/original/26d2717ac8902747f023cda5878f3450.jpg 153c82ea41ba2026f1589ec123f80da1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Quartzite-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/95cc536e821ed6b1c0128320c0cb69a7.jpg 6dd4dd22771e9d7ecd68b2c1e24123dc Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Quartzite-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Irving Pond Formation Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-1 Title A name given to the resource Quartzite Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands-collected from a road cut on NY Routes 10 & 29A, Â½ mile north of the Nick Stoner Inn and 1Â¼ miles south of the Canada Lake Store. Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource This specimen is typical of the 5-10 foot thick coarse grained layers of glassy quartzites that comprise this formation. In most instances the quartzites are about 90% quartz. Feldspar and garnet are encountered locally. This is presumed to be the uppermost stratigraphic unit in the Adirondacks and typical of Adirondack quartzite generally. Thin section shows primarily quartz with a minor amount of feldspar. Date A point or period of time associated with an event in the lifecycle of the resource 1980 https://dev.geosciencecollections.milne-library.org/files/original/55e24ebab872a9e09283742a53d8c03f.JPG 8c151af8bcc5f2c03412639fe766076f Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Charnockite https://dev.geosciencecollections.milne-library.org/files/original/e23a0f2ee6cbd5f8107dc8611fe27fb8.jpg 93776188d4b2a3f7e3bfecaa0ed51ffe Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Charnockite-thin section cross polarized light https://dev.geosciencecollections.milne-library.org/files/original/a68a9a4111f881e7a490c24e89eba9bb.jpg cd53ef059867d23cd408b3cd14c4e681 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Charnockite-thin section plane polarized light Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (ADK) Anorthosite-Charnockite and Metamorphic Suite -- Adirondack Mountains, New York Description An account of the resource The Adirondack Mountains of northern New York State are underlain by approximately 20,000 square miles of complexly deformed, high grade metamorphic rocks which are believed to represent a southern outlier of the much larger Grenville Province.The Adirondacks can be divided into the "Lowlands" and the "Highlands" . The Lowlands comprise the northwestern quarter of the belt and are characterized by amphibolite facies metamorphism. The Highlands appear to consist entirely of granulite facies rocks. All rocks in this suite have been collected from the Highlands and predominantly from the southern quarter of the Adirondacks. This suite of rocks is designed to be representative of the Highlands in general. Therefore it includes both metasedimentary and metaigneous rocks. The latter are very common throughout the Adirondacks and contain the often-discussed anorthosite-charnockite suite of rocks. Almost all rocks in the Adirondack Highlands are strongly foliated. This is the result of intense polyphase deformation that has affected this area. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â McLelland, J., and Selleck, B.W.,2011,Â Megacrystic Gore Mountain-type garnets in the Adirondack Highlands; age, origin, and tectonic implications:Geosphere, v.7, no. 5, p.1194-1208, doi:Â <a href="http://dx.doi.org/10.1130/GES00683.1" target="_blank">10.1130/GES00683.1</a>. <ul><li>This article describes the formation of the megacrystic garnet amphibolites in the Gore Mountain section of the Adirondack Mountains. The authors conclude that three main factors influenced the garnet development: collapse of the Ottawan orogeny, intrusion of Lyon Mountain Granite, and fluid-related alteration at high temperature.</li> </ul>Additional resources: McLelland, J.M., Bickford, M.E., Hill, B.M., Clechenko, C.C., Valley, J.W., and Hamilton, M.A., 2004,Â Direct dating of Adirondack Massif anorthosite by U-Pb SHRIMP analysis of igneous zircon; implications for AMCG complexes:Â Geological Society of America Bulletin, v.116, no. 11-12, p.1299-1317, doi:Â <a href="http://dx.doi.org/10.1130/B25482.1" target="_blank">10.1130/B25482.1</a>. <ul><li>This article describes techniques used to more accurately date the Adirondack Massif anorthosite.The authors concluded that the massifsÂ constitute a single, composite anorthosite-mangerite-charnockite-granite (AMCG) suite intruded at ca. 1155 Ma. Although the rock suite is considered to be coeval, the authors conclude the rocks are not comagmatic.</li> </ul>McLelland, J., Bickford, M.E., Spear, F., and Storm, L., 2002, Geology and geochronolgy of the eastern Adirondacks inÂ New England Intercollegiate Geological Conference, 94th, New York State Geological Association 74th: guidebook for field trips in New York and Vermont : Lake George, New York <ul><li>This field trip guide provides for nine stops in the eastern Adirondacks. It also include some thin sections images and zircon images from sample rocks of the field trip stops.</li> </ul>McLelland, J., Daly, J.S., and McLelland, J.M., 1996,Â The Grenville orogenic cycle (ca. 1350-1000 Ma); an Adirondack perspective: Tectonophysics, v.265, issue 1-2, p.1-28, doi: <a href="http://dx.doi.org/10.1016/S0040-1951(96)00144-8" target="_blank">10.1016/S0040-1951(96)00144-8</a>. <ul><li>This article provides a detailed geochronological account of the Grenville orogeny (ca. 1350-1000 Ma) with emphasis on the impact it had on the formation of the Adirondack Mountains.</li> </ul>McLelland, J., Lewis, A., and Moore, L., 1994,Â Composition and petrogenesis of oxide-, apatite-rich gabbronorites associated with Proterozoic anorthosite massifs: examples from the Adirondack Mountains, New York: Contributions to Mineralogy and Petrology, v.116, p.225-238, doi:Â <a href="http://dx.doi.org/10.1007/BF00310702" target="_blank">10.1007/BF00310702</a>. <ul><li>This article investigates the occurence of oxide-, apatite-rich gabbronorites with anorthosite massifs of the Adirondacks. The authors describe a multilple-step process of plagioclase crystal fractionation that ultimately leads to high concentrations of P, Fe, and Ti.</li> </ul>New York State Geological Survey <a href="http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html">http://www.nysm.nysed.gov/nysgs/nygeology/mineralogy/adirondacks/index.html </a> <ul><li>The NYS Geological Survey is a division of the New York State Museum system. This web page provides some details about the Adirondack Highlands and pictures of various minerals found in this region.</li> </ul>Regan, S.P., Chiarenzelli, J.R., McLelland,Â J.M., and Cousens, B. L., 2011,Â Evidence for an enriched asthenospheric source for coronitic metagabbros in the Adirondack Highlands: Geosphere, v.7, issue 3, p.Â 694-709, doi:Â <a href="http://dx.doi.org/10.1130/GES00629.1" target="_blank">10.1130/GES00629.1</a>. <ul><li>This article describes the formation of coronitc metagabbros through tectonic processes involving the asthenosphere. Through geochemical and isotopic analyses, the authors provide a timeline of tectonic and petrologic events that supports an asthenospheric source for coronitic metagabbros.</li> </ul> Date A point or period of time associated with an event in the lifecycle of the resource 1980 Temporal Coverage Temporal characteristics of the resource. The Adirondack Mountains were formed approximately 1.1- 1.3 billion years ago during the Grenville Orogeny (Precambrian eon, Proterozic era). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. This rock suite was collected from the Adirondack Mountains located in the northeastern part of New York State. Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context AD-2 Title A name given to the resource Charnockite Spatial Coverage Spatial characteristics of the resource. Adirondack Highlands- collected on Routes 10 & 29A , 0.7 miles south of the Canada Lake Store and 0.8 miles north of the Nick Stoners Inn. Collected from the west side of a large roadcut at crest of hill (where McLelland found evidence of some orthopyroxene). Temporal Coverage Temporal characteristics of the resource. Precambrian Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/7">Anorthosite-Charnockite and Metamorphic Suite-Adirondack Mountains, New York</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource This charnockite is similiar to most of the Adirondack charnockites that occur interlayered with other metastratified units. Like its analogues, the Canada Lake charnockite shows conformable realationships with enveloping units. Mineralogically, these charnockites consist of 50-60% gray-green mesoperthite, 20-30% quartz, 5-10% sodic plagioclase, and minor amounts of biotite, hornblende and orthopyroxene. The latter mineral is only sporadically in any outcrop. It is not known whether these rocks represent metasediments, metaplutonics, or metavolcanics. The latter possibility is favored by field relationships and homogeneity. Thin section shows K-feldspar, quartz and plagioclase.