15 20 1651 https://dev.geosciencecollections.milne-library.org/files/original/d96c420424d7f00e99de3e02c3f0d214.jpeg b9b0a44d0e661139c04342ba2a1ecb64 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 Hand Sample https://dev.geosciencecollections.milne-library.org/files/original/de830681884263678c3b6a2fd6658e6d.jpg 3aa317324c8d11d4d59645d00e531458 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 40x Magnification https://dev.geosciencecollections.milne-library.org/files/original/2b91b3eaa2114e4523576a44a0de00d5.jpg ff1cce4712a6f31e57b70de22ac58b0c 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 100x Magnification 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 (HA) Volcanic Phenomena Suite -- The Hawaiian Islands of Hawaii and Oahu Description An account of the resource These 31 samples comprise a collection of volcanic rocks associated with the hot-spot volcanism of the Hawaiian Islands. Samples were collected from various locations across the islands of Hawaii and Oahu. The collection contains samples of primarily tholeiitic & alkalic basalts, pumice, scoria, oceanite, and hawaiite. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1969 Identifier An unambiguous reference to the resource within a given context HA-1 - HA-31 Spatial Coverage Spatial characteristics of the resource. Samples were collected from various locations on the islands of Hawaii and Oahu. Temporal Coverage Temporal characteristics of the resource. Samples formed from Holocene eruptions of the past 300 years. Dated samples formed between 1750 and 1960. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here: Macdonald, G.A., 1949, Petrography of the Island of Hawaii, U.S.G.S. Prof. Paper 214 D <ul><li>This article is a part of the general investigation of the island of Hawaii by the United States Geologic Survey. The paper describes the dominant volcanoes of the island of Hawaii (from which most of the suite's samples were collected) and describes the petrographic phenomena observed and geochemical analyses of volcanic rocks.Â </li> </ul>Additional Resources: Ho, R.A., Garcia, M.O., 1988, Origin of differentiated lavas at Kilauea Volcano, Hawaii; implications from the 1955 eruption: Bulletin of Volcanology, v. 50, p. 35-46. <ul><li>This article describes a study of lava flows from the 1955 eruption of the Kilauea Volcano on the island of Hawaii to evaluate models of crystal fractionation or magma mixing as the processes forming differentiated magmas. Through geochemical analyses, the study concluded that crystal fractionation resulted in the observed differentiation of lavas.</li> </ul> Hofman, A.W., Farnetani, C.G., 2013, Two Views of Hawaiian Plume Structure: Geochemistry, Geophysics, Geosystems, v.14, p. 5308-5322, doi:10.1002/2013GC004942 <ul><li>This article presents two opposing views of the source of magmas for the Hawaiian volcanoes. Both views favor a deep mantle source, but try to explain differences in isotopic compositions.</li> </ul> Macdonald, G.A., 1968, Composition and origin of Hawaiian LavasÂ in GSA Memoirs 1968, p. 477-522 <ul><li>This article provides geochemical analysis of major elements as well as determinations of minor elements of volcanic rocks from the island of Hawaii. The article describes the three major rock types - tholeitic, alkalic, and nephelinic - and concludes these rock suites are chemically intergradational and are likely derived from crystal differentiation of a single parent magma.</li> </ul> Moore, J.G., Clague, D.A., 1992, Volcano growth and evolution of the Island of Hawaii: Geologic Society of America Bulletin, v. 104, p. 1471-1484 <ul><li>This article proposes a chronologic evolution of the island of Hawaii, from where many of the suite's samples were collected.</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 Pumice Description An account of the resource Hand Sample: Aphanitic light gray vesicular pumice. Sample has incredibly low specific gravity due to abundant vesicles. Vesicles range in size from less than 0.1cm to 0.3cm. Some vesicles on cut face appear to be filled in with a lighter material. Sample contains blocks of Trachyte Obsidian from sample HA-22. Thin Section: Groundmass composed of aphanitic glass, opaque minerals, and some plagiocalse. Numerous vesicles are present. Contributor An entity responsible for making contributions to the resource Western Minerals Is Part Of A related resource in which the described resource is physically or logically included. Volcanic Phenomena Suite - The Hawaiian Islands of Hawaii and Oahu Identifier An unambiguous reference to the resource within a given context HA-23 Spatial Coverage Spatial characteristics of the resource. Puu Waawaa quarry, Hualalai - Island of Hawaii Date A point or period of time associated with an event in the lifecycle of the resource Sample collected in January, 1969. https://dev.geosciencecollections.milne-library.org/files/original/98322771305ee7ddf751439c2e4d0935.jpeg 67ae89b0ad637f5edbe0200a4a4c318c 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 Hand Sample https://dev.geosciencecollections.milne-library.org/files/original/4937244307739cfd361ffb46dd96e310.jpeg ce4fb8056ab706bd4fb7fadcf663049e 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 Cut Face https://dev.geosciencecollections.milne-library.org/files/original/e13471e64d8076cae450007fb563532b.jpg a07e4be69399abb6b96e464ec04ac1f1 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 40x Magnification https://dev.geosciencecollections.milne-library.org/files/original/6c78313f5f76e48edd091d4a47593113.jpg cd86806e677b1a0a69fe0171c3e288d4 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 100x Magnification 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 (HA) Volcanic Phenomena Suite -- The Hawaiian Islands of Hawaii and Oahu Description An account of the resource These 31 samples comprise a collection of volcanic rocks associated with the hot-spot volcanism of the Hawaiian Islands. Samples were collected from various locations across the islands of Hawaii and Oahu. The collection contains samples of primarily tholeiitic & alkalic basalts, pumice, scoria, oceanite, and hawaiite. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1969 Identifier An unambiguous reference to the resource within a given context HA-1 - HA-31 Spatial Coverage Spatial characteristics of the resource. Samples were collected from various locations on the islands of Hawaii and Oahu. Temporal Coverage Temporal characteristics of the resource. Samples formed from Holocene eruptions of the past 300 years. Dated samples formed between 1750 and 1960. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here: Macdonald, G.A., 1949, Petrography of the Island of Hawaii, U.S.G.S. Prof. Paper 214 D <ul><li>This article is a part of the general investigation of the island of Hawaii by the United States Geologic Survey. The paper describes the dominant volcanoes of the island of Hawaii (from which most of the suite's samples were collected) and describes the petrographic phenomena observed and geochemical analyses of volcanic rocks.Â </li> </ul>Additional Resources: Ho, R.A., Garcia, M.O., 1988, Origin of differentiated lavas at Kilauea Volcano, Hawaii; implications from the 1955 eruption: Bulletin of Volcanology, v. 50, p. 35-46. <ul><li>This article describes a study of lava flows from the 1955 eruption of the Kilauea Volcano on the island of Hawaii to evaluate models of crystal fractionation or magma mixing as the processes forming differentiated magmas. Through geochemical analyses, the study concluded that crystal fractionation resulted in the observed differentiation of lavas.</li> </ul> Hofman, A.W., Farnetani, C.G., 2013, Two Views of Hawaiian Plume Structure: Geochemistry, Geophysics, Geosystems, v.14, p. 5308-5322, doi:10.1002/2013GC004942 <ul><li>This article presents two opposing views of the source of magmas for the Hawaiian volcanoes. Both views favor a deep mantle source, but try to explain differences in isotopic compositions.</li> </ul> Macdonald, G.A., 1968, Composition and origin of Hawaiian LavasÂ in GSA Memoirs 1968, p. 477-522 <ul><li>This article provides geochemical analysis of major elements as well as determinations of minor elements of volcanic rocks from the island of Hawaii. The article describes the three major rock types - tholeitic, alkalic, and nephelinic - and concludes these rock suites are chemically intergradational and are likely derived from crystal differentiation of a single parent magma.</li> </ul> Moore, J.G., Clague, D.A., 1992, Volcano growth and evolution of the Island of Hawaii: Geologic Society of America Bulletin, v. 104, p. 1471-1484 <ul><li>This article proposes a chronologic evolution of the island of Hawaii, from where many of the suite's samples were collected.</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 Lapilli Tuff Description An account of the resource Hand Sample: Lapilli tuff containing pieces of pumice (HA-23) and trachyte obsidian (HA-22) ranging in size from 0.1cm to 1.5cm. Clasts are held together in light-colored ash. Sample surface crumbles when handled. Lapilli describes the size of the clasts, indicating a range in diameter of approx. 2 to 64mm. Thin Section: Groundmass is predominantly clasts of pumice and trachyte obsidian, which are composed of glass and plagioclase grains in a glass matrix material. Contributor An entity responsible for making contributions to the resource Western Minerals Is Part Of A related resource in which the described resource is physically or logically included. Volcanic Phenomena Suite - The Hawaiian Islands of Hawaii and Oahu Identifier An unambiguous reference to the resource within a given context HA-24 Spatial Coverage Spatial characteristics of the resource. Puu Waawaa quarry,Hualalai - Island of Hawaii https://dev.geosciencecollections.milne-library.org/files/original/6dd9e670efc7e1342aced7ea6f8da401.JPG 52ac83c56adc3076e54d1fff02fe03a0 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 Hand Sample https://dev.geosciencecollections.milne-library.org/files/original/abe24359c03b36134747bd5aecc573b3.jpg 03b6fc64acb526170841ab0f7638d7af 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 40x Magnification https://dev.geosciencecollections.milne-library.org/files/original/6f46e5e9ea6c393c84c756576762428e.jpg a47f29f54333b8463586a24629ebd649 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 100x Magnification 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 (HA) Volcanic Phenomena Suite -- The Hawaiian Islands of Hawaii and Oahu Description An account of the resource These 31 samples comprise a collection of volcanic rocks associated with the hot-spot volcanism of the Hawaiian Islands. Samples were collected from various locations across the islands of Hawaii and Oahu. The collection contains samples of primarily tholeiitic & alkalic basalts, pumice, scoria, oceanite, and hawaiite. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1969 Identifier An unambiguous reference to the resource within a given context HA-1 - HA-31 Spatial Coverage Spatial characteristics of the resource. Samples were collected from various locations on the islands of Hawaii and Oahu. Temporal Coverage Temporal characteristics of the resource. Samples formed from Holocene eruptions of the past 300 years. Dated samples formed between 1750 and 1960. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here: Macdonald, G.A., 1949, Petrography of the Island of Hawaii, U.S.G.S. Prof. Paper 214 D <ul><li>This article is a part of the general investigation of the island of Hawaii by the United States Geologic Survey. The paper describes the dominant volcanoes of the island of Hawaii (from which most of the suite's samples were collected) and describes the petrographic phenomena observed and geochemical analyses of volcanic rocks.Â </li> </ul>Additional Resources: Ho, R.A., Garcia, M.O., 1988, Origin of differentiated lavas at Kilauea Volcano, Hawaii; implications from the 1955 eruption: Bulletin of Volcanology, v. 50, p. 35-46. <ul><li>This article describes a study of lava flows from the 1955 eruption of the Kilauea Volcano on the island of Hawaii to evaluate models of crystal fractionation or magma mixing as the processes forming differentiated magmas. Through geochemical analyses, the study concluded that crystal fractionation resulted in the observed differentiation of lavas.</li> </ul> Hofman, A.W., Farnetani, C.G., 2013, Two Views of Hawaiian Plume Structure: Geochemistry, Geophysics, Geosystems, v.14, p. 5308-5322, doi:10.1002/2013GC004942 <ul><li>This article presents two opposing views of the source of magmas for the Hawaiian volcanoes. Both views favor a deep mantle source, but try to explain differences in isotopic compositions.</li> </ul> Macdonald, G.A., 1968, Composition and origin of Hawaiian LavasÂ in GSA Memoirs 1968, p. 477-522 <ul><li>This article provides geochemical analysis of major elements as well as determinations of minor elements of volcanic rocks from the island of Hawaii. The article describes the three major rock types - tholeitic, alkalic, and nephelinic - and concludes these rock suites are chemically intergradational and are likely derived from crystal differentiation of a single parent magma.</li> </ul> Moore, J.G., Clague, D.A., 1992, Volcano growth and evolution of the Island of Hawaii: Geologic Society of America Bulletin, v. 104, p. 1471-1484 <ul><li>This article proposes a chronologic evolution of the island of Hawaii, from where many of the suite's samples were collected.</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 Peridotite/Dunite Description An account of the resource Hand Sample: Natural surface of sample is dark in color with smooth texture. Cut face reveals blocks of peridotite and dunite held together with a thin layer of lava cement. Sample has high specific gravity. Thin Section: Large euhedral to subhedral olivine grains compose the majority of the sample, with thin bands of glass material between them. Contributor An entity responsible for making contributions to the resource Western Minerals Is Part Of A related resource in which the described resource is physically or logically included. Volcanic Phenomena Suite - The Hawaiian Islands of Hawaii and Oahu Identifier An unambiguous reference to the resource within a given context HA-25 Spatial Coverage Spatial characteristics of the resource. Hualalai - 9 miles north of Hohokahau - Island of Hawaii Sample collected just north of Relay Tower and approx. one mile southeast of the highway. Temporal Coverage Temporal characteristics of the resource. 1801 Date A point or period of time associated with an event in the lifecycle of the resource Sample collected in January, 1969. https://dev.geosciencecollections.milne-library.org/files/original/b5e4c26600f90c0227c7715101d3b52b.JPG 5544b182da55a7bb1f346c8cfd5a3261 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 Hand Sample https://dev.geosciencecollections.milne-library.org/files/original/78943465eb8cc90c06e4092734fccf42.jpg 3c3f1010dc0fcc6e3d9e506c12f182a1 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 40x Magnification https://dev.geosciencecollections.milne-library.org/files/original/b4897c11f22dc01a522bfc51f1678033.jpg 943eba40af290a9800a15ef91e9cf188 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 100x Magnification 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 (HA) Volcanic Phenomena Suite -- The Hawaiian Islands of Hawaii and Oahu Description An account of the resource These 31 samples comprise a collection of volcanic rocks associated with the hot-spot volcanism of the Hawaiian Islands. Samples were collected from various locations across the islands of Hawaii and Oahu. The collection contains samples of primarily tholeiitic & alkalic basalts, pumice, scoria, oceanite, and hawaiite. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1969 Identifier An unambiguous reference to the resource within a given context HA-1 - HA-31 Spatial Coverage Spatial characteristics of the resource. Samples were collected from various locations on the islands of Hawaii and Oahu. Temporal Coverage Temporal characteristics of the resource. Samples formed from Holocene eruptions of the past 300 years. Dated samples formed between 1750 and 1960. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here: Macdonald, G.A., 1949, Petrography of the Island of Hawaii, U.S.G.S. Prof. Paper 214 D <ul><li>This article is a part of the general investigation of the island of Hawaii by the United States Geologic Survey. The paper describes the dominant volcanoes of the island of Hawaii (from which most of the suite's samples were collected) and describes the petrographic phenomena observed and geochemical analyses of volcanic rocks.Â </li> </ul>Additional Resources: Ho, R.A., Garcia, M.O., 1988, Origin of differentiated lavas at Kilauea Volcano, Hawaii; implications from the 1955 eruption: Bulletin of Volcanology, v. 50, p. 35-46. <ul><li>This article describes a study of lava flows from the 1955 eruption of the Kilauea Volcano on the island of Hawaii to evaluate models of crystal fractionation or magma mixing as the processes forming differentiated magmas. Through geochemical analyses, the study concluded that crystal fractionation resulted in the observed differentiation of lavas.</li> </ul> Hofman, A.W., Farnetani, C.G., 2013, Two Views of Hawaiian Plume Structure: Geochemistry, Geophysics, Geosystems, v.14, p. 5308-5322, doi:10.1002/2013GC004942 <ul><li>This article presents two opposing views of the source of magmas for the Hawaiian volcanoes. Both views favor a deep mantle source, but try to explain differences in isotopic compositions.</li> </ul> Macdonald, G.A., 1968, Composition and origin of Hawaiian LavasÂ in GSA Memoirs 1968, p. 477-522 <ul><li>This article provides geochemical analysis of major elements as well as determinations of minor elements of volcanic rocks from the island of Hawaii. The article describes the three major rock types - tholeitic, alkalic, and nephelinic - and concludes these rock suites are chemically intergradational and are likely derived from crystal differentiation of a single parent magma.</li> </ul> Moore, J.G., Clague, D.A., 1992, Volcano growth and evolution of the Island of Hawaii: Geologic Society of America Bulletin, v. 104, p. 1471-1484 <ul><li>This article proposes a chronologic evolution of the island of Hawaii, from where many of the suite's samples were collected.</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 Scoria Description An account of the resource Hand Sample: Microcrystalline vesicular, dark-gray to black scoria. Vesicle size varies throughout the sample, ranging from larger circular vesicles with a diameter of approx. 1.5 cm on one surface and small vesicles (less than 0.1cm in diameter) on the opposite face. Sample has low specific gravity due to abundance of vesicles. Thin Section : Groundmass composed of glass and microcrystaline grains of plagioclase. Large elongated vesicles are observed throughout the thin section. Contributor An entity responsible for making contributions to the resource Western Minerals Is Part Of A related resource in which the described resource is physically or logically included. Volcanic Phenomena Suite - The Hawaiian Islands of Hawaii and Oahu Identifier An unambiguous reference to the resource within a given context HA-26 Spatial Coverage Spatial characteristics of the resource. Hualalai - 9 miles north of Hohokahua - Island of Hawaii Sample collected just above HA-25. Collected just North of Relay Tower and approx. one mile southeast of the highway. Temporal Coverage Temporal characteristics of the resource. 1801 Date A point or period of time associated with an event in the lifecycle of the resource Sample collected in January, 1969. https://dev.geosciencecollections.milne-library.org/files/original/efd38e3647b0ea0630fdf6bda8e4f147.JPG 4d55692742da1ae5b9def39482aa0a7b 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 Hand Sample https://dev.geosciencecollections.milne-library.org/files/original/412f4c3fae4a2719333effa4eb948e9f.jpg 2c5a10aab5f36997d815dcb4eb1c018e 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 40x Magnification https://dev.geosciencecollections.milne-library.org/files/original/6e8c59c04b522dc4923f7783386a3bcf.jpg dde2eb44843a4ae172b66659f79168a7 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 100x Magnification 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 (HA) Volcanic Phenomena Suite -- The Hawaiian Islands of Hawaii and Oahu Description An account of the resource These 31 samples comprise a collection of volcanic rocks associated with the hot-spot volcanism of the Hawaiian Islands. Samples were collected from various locations across the islands of Hawaii and Oahu. The collection contains samples of primarily tholeiitic & alkalic basalts, pumice, scoria, oceanite, and hawaiite. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1969 Identifier An unambiguous reference to the resource within a given context HA-1 - HA-31 Spatial Coverage Spatial characteristics of the resource. Samples were collected from various locations on the islands of Hawaii and Oahu. Temporal Coverage Temporal characteristics of the resource. Samples formed from Holocene eruptions of the past 300 years. Dated samples formed between 1750 and 1960. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here: Macdonald, G.A., 1949, Petrography of the Island of Hawaii, U.S.G.S. Prof. Paper 214 D <ul><li>This article is a part of the general investigation of the island of Hawaii by the United States Geologic Survey. The paper describes the dominant volcanoes of the island of Hawaii (from which most of the suite's samples were collected) and describes the petrographic phenomena observed and geochemical analyses of volcanic rocks.Â </li> </ul>Additional Resources: Ho, R.A., Garcia, M.O., 1988, Origin of differentiated lavas at Kilauea Volcano, Hawaii; implications from the 1955 eruption: Bulletin of Volcanology, v. 50, p. 35-46. <ul><li>This article describes a study of lava flows from the 1955 eruption of the Kilauea Volcano on the island of Hawaii to evaluate models of crystal fractionation or magma mixing as the processes forming differentiated magmas. Through geochemical analyses, the study concluded that crystal fractionation resulted in the observed differentiation of lavas.</li> </ul> Hofman, A.W., Farnetani, C.G., 2013, Two Views of Hawaiian Plume Structure: Geochemistry, Geophysics, Geosystems, v.14, p. 5308-5322, doi:10.1002/2013GC004942 <ul><li>This article presents two opposing views of the source of magmas for the Hawaiian volcanoes. Both views favor a deep mantle source, but try to explain differences in isotopic compositions.</li> </ul> Macdonald, G.A., 1968, Composition and origin of Hawaiian LavasÂ in GSA Memoirs 1968, p. 477-522 <ul><li>This article provides geochemical analysis of major elements as well as determinations of minor elements of volcanic rocks from the island of Hawaii. The article describes the three major rock types - tholeitic, alkalic, and nephelinic - and concludes these rock suites are chemically intergradational and are likely derived from crystal differentiation of a single parent magma.</li> </ul> Moore, J.G., Clague, D.A., 1992, Volcano growth and evolution of the Island of Hawaii: Geologic Society of America Bulletin, v. 104, p. 1471-1484 <ul><li>This article proposes a chronologic evolution of the island of Hawaii, from where many of the suite's samples were collected.</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 Alkalic Olivine Basalt Description An account of the resource Hand Sample: Aphanitic dark gray vesicular basalt. Sample contains numerous vesicles ranging in size from less than 0.05cm to 1.5cm. Individual olivine crystals can also be found throughout the sample. Thin Section: Groundmass of medium size plagioclase, pyroxenes, and olivine. Vesicles are numerous throughout the sample. Contributor An entity responsible for making contributions to the resource Western Minerals Is Part Of A related resource in which the described resource is physically or logically included. Volcanic Phenomena Suite - The Hawaiian Islands of Hawaii and Oahu Identifier An unambiguous reference to the resource within a given context HA-27 Spatial Coverage Spatial characteristics of the resource. North of Kailua - Island of Hawaii Sample collected 2.95 miles from the junction of the road to Kona airport and Palouri Road. Date A point or period of time associated with an event in the lifecycle of the resource Sample collected in January, 1969. https://dev.geosciencecollections.milne-library.org/files/original/1ea706bc92a4aa513dd9b6eaf6bebf01.jpeg aa7e0195008375bd35efc71a22bb8c7d 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 Hand Sample https://dev.geosciencecollections.milne-library.org/files/original/0aef13e3028d67896ef4435541253f07.jpg 4e7337c9e4a5b75885513f9a6032337e 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 40x Magnification https://dev.geosciencecollections.milne-library.org/files/original/8b6470f0eb855790a2472695f16fee65.jpg 7a55c9cf598ae1d07e1920bfe0f8b334 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 100x Magnification 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 (HA) Volcanic Phenomena Suite -- The Hawaiian Islands of Hawaii and Oahu Description An account of the resource These 31 samples comprise a collection of volcanic rocks associated with the hot-spot volcanism of the Hawaiian Islands. Samples were collected from various locations across the islands of Hawaii and Oahu. The collection contains samples of primarily tholeiitic & alkalic basalts, pumice, scoria, oceanite, and hawaiite. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1969 Identifier An unambiguous reference to the resource within a given context HA-1 - HA-31 Spatial Coverage Spatial characteristics of the resource. Samples were collected from various locations on the islands of Hawaii and Oahu. Temporal Coverage Temporal characteristics of the resource. Samples formed from Holocene eruptions of the past 300 years. Dated samples formed between 1750 and 1960. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here: Macdonald, G.A., 1949, Petrography of the Island of Hawaii, U.S.G.S. Prof. Paper 214 D <ul><li>This article is a part of the general investigation of the island of Hawaii by the United States Geologic Survey. The paper describes the dominant volcanoes of the island of Hawaii (from which most of the suite's samples were collected) and describes the petrographic phenomena observed and geochemical analyses of volcanic rocks.Â </li> </ul>Additional Resources: Ho, R.A., Garcia, M.O., 1988, Origin of differentiated lavas at Kilauea Volcano, Hawaii; implications from the 1955 eruption: Bulletin of Volcanology, v. 50, p. 35-46. <ul><li>This article describes a study of lava flows from the 1955 eruption of the Kilauea Volcano on the island of Hawaii to evaluate models of crystal fractionation or magma mixing as the processes forming differentiated magmas. Through geochemical analyses, the study concluded that crystal fractionation resulted in the observed differentiation of lavas.</li> </ul> Hofman, A.W., Farnetani, C.G., 2013, Two Views of Hawaiian Plume Structure: Geochemistry, Geophysics, Geosystems, v.14, p. 5308-5322, doi:10.1002/2013GC004942 <ul><li>This article presents two opposing views of the source of magmas for the Hawaiian volcanoes. Both views favor a deep mantle source, but try to explain differences in isotopic compositions.</li> </ul> Macdonald, G.A., 1968, Composition and origin of Hawaiian LavasÂ in GSA Memoirs 1968, p. 477-522 <ul><li>This article provides geochemical analysis of major elements as well as determinations of minor elements of volcanic rocks from the island of Hawaii. The article describes the three major rock types - tholeitic, alkalic, and nephelinic - and concludes these rock suites are chemically intergradational and are likely derived from crystal differentiation of a single parent magma.</li> </ul> Moore, J.G., Clague, D.A., 1992, Volcano growth and evolution of the Island of Hawaii: Geologic Society of America Bulletin, v. 104, p. 1471-1484 <ul><li>This article proposes a chronologic evolution of the island of Hawaii, from where many of the suite's samples were collected.</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/. Identifier An unambiguous reference to the resource within a given context HA-28 Title A name given to the resource Alkalic Olivine Basalt Spatial Coverage Spatial characteristics of the resource. Kailua - Island of Hawaii Sample collected on same road as HA-27. Collected 0.35 miles from junction of road to Kona airport and Paloui Road. Contributor An entity responsible for making contributions to the resource Western Minerals Is Part Of A related resource in which the described resource is physically or logically included. Volcanic Phenomena Suite - The Hawaiian Islands of Hawaii and Oahu Description An account of the resource Hand Sample: Aphanitic dark gray vesicular basalt. Vesicles are common throughout sample and range in size from 0.1 to 3.5cm in diameter. Individual olivine crystals are found throughout the sample and range in size from 0.1 to 0.4cm in length. Thin Section: Groundmass dominated by plagioclase, glass and pyroxenes. Large phenocrysts of euhedral to subhedral olivine can be observed throughout the sample in addition to occasional vesicles. Date A point or period of time associated with an event in the lifecycle of the resource Sample collected in January, 1969. https://dev.geosciencecollections.milne-library.org/files/original/967ccb4dc29068352f2ee61d4f02ba2c.JPG 490df14a03914aadb702e94c8d227280 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 Hand Sample https://dev.geosciencecollections.milne-library.org/files/original/7a759f0d44686b87d0400cb6086c7a63.jpg 34d2b7d65bf686361eee346ebe3438a2 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 40x Magnification https://dev.geosciencecollections.milne-library.org/files/original/8615369c05e0f8268dc5c40f80a66a1a.jpg de2168cfd24ad34631eea0302d6f9a84 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 100x Magnification 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 (HA) Volcanic Phenomena Suite -- The Hawaiian Islands of Hawaii and Oahu Description An account of the resource These 31 samples comprise a collection of volcanic rocks associated with the hot-spot volcanism of the Hawaiian Islands. Samples were collected from various locations across the islands of Hawaii and Oahu. The collection contains samples of primarily tholeiitic & alkalic basalts, pumice, scoria, oceanite, and hawaiite. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1969 Identifier An unambiguous reference to the resource within a given context HA-1 - HA-31 Spatial Coverage Spatial characteristics of the resource. Samples were collected from various locations on the islands of Hawaii and Oahu. Temporal Coverage Temporal characteristics of the resource. Samples formed from Holocene eruptions of the past 300 years. Dated samples formed between 1750 and 1960. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here: Macdonald, G.A., 1949, Petrography of the Island of Hawaii, U.S.G.S. Prof. Paper 214 D <ul><li>This article is a part of the general investigation of the island of Hawaii by the United States Geologic Survey. The paper describes the dominant volcanoes of the island of Hawaii (from which most of the suite's samples were collected) and describes the petrographic phenomena observed and geochemical analyses of volcanic rocks.Â </li> </ul>Additional Resources: Ho, R.A., Garcia, M.O., 1988, Origin of differentiated lavas at Kilauea Volcano, Hawaii; implications from the 1955 eruption: Bulletin of Volcanology, v. 50, p. 35-46. <ul><li>This article describes a study of lava flows from the 1955 eruption of the Kilauea Volcano on the island of Hawaii to evaluate models of crystal fractionation or magma mixing as the processes forming differentiated magmas. Through geochemical analyses, the study concluded that crystal fractionation resulted in the observed differentiation of lavas.</li> </ul> Hofman, A.W., Farnetani, C.G., 2013, Two Views of Hawaiian Plume Structure: Geochemistry, Geophysics, Geosystems, v.14, p. 5308-5322, doi:10.1002/2013GC004942 <ul><li>This article presents two opposing views of the source of magmas for the Hawaiian volcanoes. Both views favor a deep mantle source, but try to explain differences in isotopic compositions.</li> </ul> Macdonald, G.A., 1968, Composition and origin of Hawaiian LavasÂ in GSA Memoirs 1968, p. 477-522 <ul><li>This article provides geochemical analysis of major elements as well as determinations of minor elements of volcanic rocks from the island of Hawaii. The article describes the three major rock types - tholeitic, alkalic, and nephelinic - and concludes these rock suites are chemically intergradational and are likely derived from crystal differentiation of a single parent magma.</li> </ul> Moore, J.G., Clague, D.A., 1992, Volcano growth and evolution of the Island of Hawaii: Geologic Society of America Bulletin, v. 104, p. 1471-1484 <ul><li>This article proposes a chronologic evolution of the island of Hawaii, from where many of the suite's samples were collected.</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 Nephelinite Description An account of the resource Hand Sample: Aphanitic medium gray nephlenite. White intergrowth crystals are common throughout the sample and form long strands (approx. 0.6 - 1cm in length) on sides of sample. Sample contains some melilite. Thin Section: Groundmass is primarily glass and pyroxenes. Phenocrysts of pyroxenes and olivine are present throughout the sample. Contributor An entity responsible for making contributions to the resource Western Minerals Is Part Of A related resource in which the described resource is physically or logically included. Volcanic Phenomena Suite - The Hawaiian Islands of Hawaii and Oahu Identifier An unambiguous reference to the resource within a given context HA-29 Spatial Coverage Spatial characteristics of the resource. University of Hawaii campus (Training School Flow), Honolulu - Island of Oahu Date A point or period of time associated with an event in the lifecycle of the resource Sample collected in January, 1969. https://dev.geosciencecollections.milne-library.org/files/original/ab16f4b1f3b9f9fee2ba818cf8ec7f90.JPG 4570b0ae23f1656b76642219f4b91997 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 Hand Sample https://dev.geosciencecollections.milne-library.org/files/original/65dc44e2f7c0f478648dc46e6d49d26f.jpg e783846cdc90cad8de818d0e2a2b6e40 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 40x Magnification https://dev.geosciencecollections.milne-library.org/files/original/58d8e3837c649b1c3384e299afd909ca.jpg fe9f2ff9432128c80bd186a13db008b9 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 100x Magnification 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 (HA) Volcanic Phenomena Suite -- The Hawaiian Islands of Hawaii and Oahu Description An account of the resource These 31 samples comprise a collection of volcanic rocks associated with the hot-spot volcanism of the Hawaiian Islands. Samples were collected from various locations across the islands of Hawaii and Oahu. The collection contains samples of primarily tholeiitic & alkalic basalts, pumice, scoria, oceanite, and hawaiite. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1969 Identifier An unambiguous reference to the resource within a given context HA-1 - HA-31 Spatial Coverage Spatial characteristics of the resource. Samples were collected from various locations on the islands of Hawaii and Oahu. Temporal Coverage Temporal characteristics of the resource. Samples formed from Holocene eruptions of the past 300 years. Dated samples formed between 1750 and 1960. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here: Macdonald, G.A., 1949, Petrography of the Island of Hawaii, U.S.G.S. Prof. Paper 214 D <ul><li>This article is a part of the general investigation of the island of Hawaii by the United States Geologic Survey. The paper describes the dominant volcanoes of the island of Hawaii (from which most of the suite's samples were collected) and describes the petrographic phenomena observed and geochemical analyses of volcanic rocks.Â </li> </ul>Additional Resources: Ho, R.A., Garcia, M.O., 1988, Origin of differentiated lavas at Kilauea Volcano, Hawaii; implications from the 1955 eruption: Bulletin of Volcanology, v. 50, p. 35-46. <ul><li>This article describes a study of lava flows from the 1955 eruption of the Kilauea Volcano on the island of Hawaii to evaluate models of crystal fractionation or magma mixing as the processes forming differentiated magmas. Through geochemical analyses, the study concluded that crystal fractionation resulted in the observed differentiation of lavas.</li> </ul> Hofman, A.W., Farnetani, C.G., 2013, Two Views of Hawaiian Plume Structure: Geochemistry, Geophysics, Geosystems, v.14, p. 5308-5322, doi:10.1002/2013GC004942 <ul><li>This article presents two opposing views of the source of magmas for the Hawaiian volcanoes. Both views favor a deep mantle source, but try to explain differences in isotopic compositions.</li> </ul> Macdonald, G.A., 1968, Composition and origin of Hawaiian LavasÂ in GSA Memoirs 1968, p. 477-522 <ul><li>This article provides geochemical analysis of major elements as well as determinations of minor elements of volcanic rocks from the island of Hawaii. The article describes the three major rock types - tholeitic, alkalic, and nephelinic - and concludes these rock suites are chemically intergradational and are likely derived from crystal differentiation of a single parent magma.</li> </ul> Moore, J.G., Clague, D.A., 1992, Volcano growth and evolution of the Island of Hawaii: Geologic Society of America Bulletin, v. 104, p. 1471-1484 <ul><li>This article proposes a chronologic evolution of the island of Hawaii, from where many of the suite's samples were collected.</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 Melilite Nephelinite Description An account of the resource Hand Sample: Aphanitic light gray nephelinite containing some melilite. Melilite is the white minerals that range in size from 0.1 to 0.5cm. Sample contains numerous small sized (less than 0.05cm) vesicles that are evident on the cut face. Thin Section: Groundmass composed of euhedral quartz grains with abundant phenocrysts of olivine and pyroxenes. Contributor An entity responsible for making contributions to the resource Western Minerals Is Part Of A related resource in which the described resource is physically or logically included. Volcanic Phenomena Suite - The Hawaiian Islands of Hawaii and Oahu Identifier An unambiguous reference to the resource within a given context HA-30 Spatial Coverage Spatial characteristics of the resource. Moilule Quarry, Honolulu - Island of Oahu Date A point or period of time associated with an event in the lifecycle of the resource Sample collected in January, 1969. https://dev.geosciencecollections.milne-library.org/files/original/e55386a8b42ffc149fcf212bf5c9ae13.JPG 7c7adecc6d53c1d80ffdf4ef4f9a3b21 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 Hand Sample https://dev.geosciencecollections.milne-library.org/files/original/ddffec974895772cd1f79771922003c8.jpg aa6272e63c4ccd148d9d3ac636668ea6 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 40x Magnification https://dev.geosciencecollections.milne-library.org/files/original/54fe8981e692a99a5dfcb404d43faa39.jpg 93e447a55ad4cddc982fa369a2dfe909 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 100x Magnification 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 (HA) Volcanic Phenomena Suite -- The Hawaiian Islands of Hawaii and Oahu Description An account of the resource These 31 samples comprise a collection of volcanic rocks associated with the hot-spot volcanism of the Hawaiian Islands. Samples were collected from various locations across the islands of Hawaii and Oahu. The collection contains samples of primarily tholeiitic & alkalic basalts, pumice, scoria, oceanite, and hawaiite. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Date A point or period of time associated with an event in the lifecycle of the resource 1969 Identifier An unambiguous reference to the resource within a given context HA-1 - HA-31 Spatial Coverage Spatial characteristics of the resource. Samples were collected from various locations on the islands of Hawaii and Oahu. Temporal Coverage Temporal characteristics of the resource. Samples formed from Holocene eruptions of the past 300 years. Dated samples formed between 1750 and 1960. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here: Macdonald, G.A., 1949, Petrography of the Island of Hawaii, U.S.G.S. Prof. Paper 214 D <ul><li>This article is a part of the general investigation of the island of Hawaii by the United States Geologic Survey. The paper describes the dominant volcanoes of the island of Hawaii (from which most of the suite's samples were collected) and describes the petrographic phenomena observed and geochemical analyses of volcanic rocks.Â </li> </ul>Additional Resources: Ho, R.A., Garcia, M.O., 1988, Origin of differentiated lavas at Kilauea Volcano, Hawaii; implications from the 1955 eruption: Bulletin of Volcanology, v. 50, p. 35-46. <ul><li>This article describes a study of lava flows from the 1955 eruption of the Kilauea Volcano on the island of Hawaii to evaluate models of crystal fractionation or magma mixing as the processes forming differentiated magmas. Through geochemical analyses, the study concluded that crystal fractionation resulted in the observed differentiation of lavas.</li> </ul> Hofman, A.W., Farnetani, C.G., 2013, Two Views of Hawaiian Plume Structure: Geochemistry, Geophysics, Geosystems, v.14, p. 5308-5322, doi:10.1002/2013GC004942 <ul><li>This article presents two opposing views of the source of magmas for the Hawaiian volcanoes. Both views favor a deep mantle source, but try to explain differences in isotopic compositions.</li> </ul> Macdonald, G.A., 1968, Composition and origin of Hawaiian LavasÂ in GSA Memoirs 1968, p. 477-522 <ul><li>This article provides geochemical analysis of major elements as well as determinations of minor elements of volcanic rocks from the island of Hawaii. The article describes the three major rock types - tholeitic, alkalic, and nephelinic - and concludes these rock suites are chemically intergradational and are likely derived from crystal differentiation of a single parent magma.</li> </ul> Moore, J.G., Clague, D.A., 1992, Volcano growth and evolution of the Island of Hawaii: Geologic Society of America Bulletin, v. 104, p. 1471-1484 <ul><li>This article proposes a chronologic evolution of the island of Hawaii, from where many of the suite's samples were collected.</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 Rhyodacite Description An account of the resource Hand Sample: Aphanitic, pink-black rhyodacite. Sample contains alternating black and dark pink bands across face. Sample does not contain any vesicles or phenocrysts. Thin Section: Groundmass is microcrystalline, with abundant phenocrysts of plagioclase, olivine, and pyroxenes. Contributor An entity responsible for making contributions to the resource Western Minerals Is Part Of A related resource in which the described resource is physically or logically included. Volcanic Phenomena Suite - The Hawaiian Islands of Hawaii and Oahu Identifier An unambiguous reference to the resource within a given context HA-31 Spatial Coverage Spatial characteristics of the resource. Waiouai Range - Island of Oahu Date A point or period of time associated with an event in the lifecycle of the resource Sample collected in January, 1969. https://dev.geosciencecollections.milne-library.org/files/original/d2fcaf97c629f8eaecc8524050a43343.JPG fcc5902a23beefbd795c6662798f4dfe 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 DUCO-1 hand sample of red shale https://dev.geosciencecollections.milne-library.org/files/original/3b3e56d9ca105e0b279039211b85bf03.png b4f98b0361b5d07e5d1a058caaa9a178 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 xpl / ppl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-1 Title A name given to the resource Red shale Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource Red shale from the Indian River member of the Normanskill formation. This rock contains hematite, chlorite, muscovite, plagioclase, and quartz. The thin section shows muscovite and biotite with some larger quartz grains visible and minor hematite staining. This rock is from the chlorite zone of the Barrovian metamorphic sequence (low metamorphism). This rock was collected from the east end of a large road cut which samples 2 and 3 were also collected from. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/d2121e3b3193cb319b0f6ea9c8c30795.JPG e4c85f533d498eae5f5dd59d68374af1 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 DUCO-2 hand sample of green shale https://dev.geosciencecollections.milne-library.org/files/original/6f8442b4cb235b05d63ec51d00c696f4.png 6d9d1d50a91bdc675c171165c085e2a8 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 xpl / ppl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-2 Title A name given to the resource Green shale Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource Green shale of the Indian River member of the Normanskill formation. This shale contains muscovite, chlorite, plagioclase, and quartz. The thin section shows quartz and biotite with some minor opaques. This rock is from the chlorite zone of the Barrovian metamorphic sequence (low metamorphism). This rock was collected from the east end of a large road cut where samples 1 and 3 were also collected from. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/aee85236df681415674deb65ab979c40.JPG 79673125cb0e175dbf35ff07c003efe0 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 DUCO-3 hand sample of graywacke https://dev.geosciencecollections.milne-library.org/files/original/9de10e31bd8eda9dc98bcf63562f272e.png b7fa7018e6d828b9f417f69151f327e6 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 xpl / ppl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-3 Title A name given to the resource Graywacke Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource The graywacke facies in the Mt. Merino member (where sample 4 also comes from). Graywacke is a hard, dark-colored sandstone. This sandstone represents a similar rock to the protolith for the quartzite of sample 10. The thin section shows quartz, feldspar, and lithics. This rock is from the chlorite zone of the Barrovian metamorphic sequence (low metamorphism). This rock was collected from the west end of a large road cut where samples 1 and 2 were also collected from. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/22e62405382d1a0da8b99efbfba4166b.JPG 5e2b693dbe05f5e62f431e9675da4480 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 DUCO-4 hand sample of kink fold in slate 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-4 Title A name given to the resource Slate Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource Kink fold in a slate from the Mt. Merino Member. This rock is from the chlorite zone of the Barrovian metamorphic sequence (low metamorphism). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/190641d1ddf78964504e2c9ed30e8a60.JPG b98d04b346a6e28fd7ae31a817430fda 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 DUCO-5 hand sample of graphitic slate https://dev.geosciencecollections.milne-library.org/files/original/979dd870eea3c6f6666084784eaa8f73.png 5b429a8214aef5fd0541c40fd1ef51b7 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 ppl / xpl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-5 Title A name given to the resource Graphitic slate Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource A highly graphitic slate in the Walloomsac slates. Contains pyrite. This rock also contains biotite, chlorite, muscovite, quartz, ilmenite, and pyrite. The thin section shows large biotite grains, and chlorite muscovite, and quartz. Fluid inclusions are pervasive. This rock is from the biotite zone of the Barrovian sequence (low-intermediate metamorphism). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/54282253ffcdc5848e5cf61b2187ef47.JPG fb717c3880667b6ea6624d0df1c95c79 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 DUCO-6 hand sample of garnet biotite schist https://dev.geosciencecollections.milne-library.org/files/original/971e9053a6e12aa290522568d50a4703.png 63e23c43bd4758597b020e63ebbf23d4 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 ppl / xpl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-6 Title A name given to the resource Garnet biotite schist Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource Schist with sparse garnet. This schist is darker and graphitic. It also contains biotite, chlorite, muscovite, feldspar, and quartz. The thin section shows several large biotite grains with an included garnet, small quartz grains, muscovite, and many fluid inclusions. This rock is from the garnet zone in the Barrovian metamorphic sequence (intermediate metamorphism). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/7354194eb0e26f78030566ded7fb8832.JPG 79ce4ff7427ab687f5fd38a19799f143 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 DUCO-7 hand sample of chloritoid schist https://dev.geosciencecollections.milne-library.org/files/original/fc7954a8f158112bcc2c160c5eb27286.png c024cabaf18f6334ab6d5b9518b3699d 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 ppl / xpl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-7 Title A name given to the resource Chloritoid schist Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource Schist with coarse chloritoid crystals (up to 1/8 inch) without preferred orientation. These crystals grow across the foliation developed in the schist, but appear deformed. Chloritoid is a silicate mineral made in metamorphism. It also contains garnet, muscovite, chlorite, feldspar, and quartz. The thin section shows a large chloritoid grain, and euhedral garnet. Fine-grained muscovite and biotite are present, along with strings of an opaque, likely graphite. This rock is from the garnet zone in the Barrovian metamorphic sequence (intermediate metamorphism). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/13f4f6bbef9a849cee6c877a9c1a6ebf.JPG 36b0f68514398d74d80f3acc25ffab00 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 DUCO-8 hand sample of staurolite chloritoid schist https://dev.geosciencecollections.milne-library.org/files/original/f08dfb776353d7f0d7dc73956e8f6e77.png 95c735cce2e47e8da43487c3aee0fa66 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 ppl / xpl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-8 Title A name given to the resource Staurolite chloritoid schist Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource Schist bearing both staurolite and chloritoid. This marks the first appearance of staurolite in the metamorphic sequence. Also contains garnet, muscovite, chlorite, biotite, feldspar, and quartz. The assemblage in not in equilibrium. The thin section shows large chloritoid grains with staurolite (an assemblage not in equilibrium). Fine grained muscovite and biotite are also present, along with micro-crystalline quartz and several graphite strings. This rock is right at the transition between the garnet-staurolite zones in the Barrovian metamorphic sequence (intermediate (increasing) metamorphism). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/47531d6403894d5f5d65265bc41c18ae.JPG 0419dea18864ce641f4cf75f89c67b4d 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 DUCO-9 hand sample of staurolite schist https://dev.geosciencecollections.milne-library.org/files/original/605ad53fdc36beb3aa64190885c4487d.png 80c1a83e8c657a20087d0842816ac3aa 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 xpl / ppl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-9 Title A name given to the resource Staurolite schist Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource Schist with coarse staurolite grains. This outcropping is approximately on the strike of the chloritoid schists (sample 7). Also contains garnet, muscovite, feldspar, and quartz. Presumed to be from the Everett Schist. The thin section shows staurolite, biotite, muscovite (noticeable by pleochroism differences) and quartz. This rock is from the staurolite zone in the Barrovian metamorphic sequence (higher intermediate metamorphism). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/f05a8651bc19fbf711a34f2a176ddfb1.JPG 8121e6ce0af723edf437fdd686cbced0 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 DUCO-10 hand sample of quartzite https://dev.geosciencecollections.milne-library.org/files/original/805ecf6a88300839eb64e310c1869888.png fe5320668d17549ca1f4b7c6a069b789 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 ppl / xpl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-10 Title A name given to the resource Quartzite Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource Metamorphised sandstone with a gray, glassy appearance. From the Paughquag quartzite, a late Cambrian formation. The basal Cambrian quartzite rests on pre-Cambrian gneisses. The thin section shows quartz and plag with some biotite and grain boundaries. Many fluid inclusions noticeable. This rock has a different protolith than the many pelitic schists around it. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. https://dev.geosciencecollections.milne-library.org/files/original/2a5001f821385ec55ab2f83f1b9e85de.JPG 3796ceb748f4956a3bc17af38a78706d 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 DUCO-11 hand sample of kyanite biotite garnet schist https://dev.geosciencecollections.milne-library.org/files/original/33e8694856feebfacd367078030d867a.png b596e1dcf288051ba79caa9d355a0abd 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 ppl 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 (DUCO) Barrovian Metamorphic Sequence -- Dutchess County, New York Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Description An account of the resource A classic example of Barrovian-type metamorphism in Dutchess County, NY associated with the Taconic orogeny. A Barrovian metamorphic sequence displays gradual pressure and temperature increase along the metamorphic gradient, and occurs during regional metamorphism. These zones of pressure and temperature increase are recognizable by the characteristic minerals that accompany them. Dutchess County, NY contains an unusually complete sequence. This collection contains metamorphic rocks from chlorite grade to sillimanite grade in a tight spatial window which records the regional metamorphic gradient increasing from WNW to ESE. This collection also contains some rocks that mirror the protoliths of the schists and quartzites of the sequence (shales and graywacke). Date A point or period of time associated with an event in the lifecycle of the resource 1970 Spatial Coverage Spatial characteristics of the resource. Dutchess County, New York Temporal Coverage Temporal characteristics of the resource. 450-430 Ma References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Vollmer, F. W., and Walker, J., 2009, The classic Barrovian metamorphic sequence of Dutchess County and its structural and stratigraphic context in the Taconic Orogeny. In Guidebookâ€”New York State Geological Association Meeting, v. 81, p. 11-1.Â <a href="http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf">http://www2.newpaltz.edu/~vollmerf/papers/Vollmer_and_Walker_2009_NYSGA.pdf</a>Â (accessed March 15th, 2015) <ul><li>A useful field trip guide across the Barrovian metamorphic sequence of Dutchess county. Good general introduction to the geology of the area.</li> </ul>Additional Resources: Whitney, D.L., Mechum, T.A., Keuhner, S.M., and Dilek, Y.R., 1996, Progressive metamorphism of pelitic rocks from protolith to granulite facies, Dutchess County, New York, USA: constraints on the timing of fluid infiltration during regional metamorphism, Journal of Metamorphic Geology, v. 14, p. 163-181. <a href="http://dx.doi.org/">http://dx.doi.org/10.1046/j.1525-1314.1996.05836.x</a> <ul><li>A fairly general look at the progressive metamorphism in Dutchess County by one of the foremost workers in the area.</li> </ul> Knopf, E.B., 1927, Some recent work in the Taconic area: American Journal of Science, v. 41, p. 42-458. <a href="http://dx.doi.org/">http://dx.doi.org/10.2475/ajs.s5-14.84.429</a> <ul><li>One of the first articles to describle the Dutchess County rocks as a "classic" Barrovian sequence.Â </li> </ul> Ghent, E.D., Stout, M.Z., 1981, Geobarometry and geothermometry of plagioclase-biotite-garnet-muscovite assemblages, Contributions to Mineralogy and Petrology, v. 76, p. 92-97. <a href="http://dx.doi.org/">http://dx.doi.org/10.1007/BF00373688</a> <ul><li>Work constraining the pressure and temperature paths of metamorphism in the sequence through equilibrium assemblages. This work was found to be in agreement with other equilibrium assemblage PT paths.</li> </ul> Whitney, D.L., Mechum, T.A., Dilek, Y.R., and Keuhner, S.M., 1996, Modification of garnet during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York, American Mineralogist, v. 81, p. 696-705. <a href="http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf"> http://www.minsocam.org/MSA/AmMin/TOC/Articles_Free/1996/Whitney_p696-705_96.pdf</a> <ul><li>Work by Whitney on changes in PTX conditions leading to modification of garnet in the metamorphic sequence. Garnet is widely distributed through the sequence, which makes it a useful marker for tracking these changes.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Barrovian Metamorphic Sequence 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 DUCO-11 Title A name given to the resource Kyanite biotite garnet schist Spatial Coverage Spatial characteristics of the resource. Dutchess Co., NY Contributor An entity responsible for making contributions to the resource Western Minerals 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/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a> Description An account of the resource Schist with coarse biotite controlling foliation. Garnets visible in some hand samples. Kyanite blades without preferred orientation--at higher concentration within folds. Possibly from the Walloomsac schist. The PPL thin section shows biotite, muscovite, kyanite, and staurolite. This rock is from the kyanite zone of the Barrovian metamorphic sequence (high metamorphism). Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc.