67 20 1651 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 ISC 144 Map Drawers Still Image A static visual representation. Examples of still images are: paintings, drawings, graphic designs, plans and maps. Recommended best practice is to assign the type "text" to images of textual materials. Physical Dimensions The actual physical size of the original image. 20/45 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 218 Title A name given to the resource Point Reyes, Calif. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Point Reyes, CA Quadrangle (1954) Creator An entity primarily responsible for making the resource US Geological Survey Date A point or period of time associated with an event in the lifecycle of the resource 1954 Date Modified Date on which the resource was changed. 1968 Source A related resource from which the described resource is derived MAP144A-14 Publisher An entity responsible for making the resource available US Geological Survey Subject The topic of the resource Topography Spatial Coverage Spatial characteristics of the resource. Drake's Bay, Pacific Ocean, Tomales Bay, Punta de los Reyes, California, United States Description An account of the resource 1:62500 Medium The material or physical carrier of the resource. 45 Relation A related resource Mt. Tamalpais, Petaluma, Santa Rosa, Sebastopol, Bodega Head 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 Maps Still Image A static visual representation. Examples of still images are: paintings, drawings, graphic designs, plans and maps. Recommended best practice is to assign the type "text" to images of textual materials. Physical Dimensions The actual physical size of the original image. 0/1 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 118 Title A name given to the resource Point Sal, Calif. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Point Sal, CA Quadrangle Creator An entity primarily responsible for making the resource US Geological Survey Date Created Date of creation of the resource. 1959 Source A related resource from which the described resource is derived MAP144A-4 Publisher An entity responsible for making the resource available US Geological Survey Subject The topic of the resource Topography Spatial Coverage Spatial characteristics of the resource. California Coast, United States Description An account of the resource 1:62500 Extent The size or duration of the resource. 1 Has Version A related resource that is a version, edition, or adaptation of the described resource. <a href="https://www.sciencebase.gov/catalog/item/58955123e4b0fa1e59ba8aa0" target="_blank">Digital Map Link</a> Relation A related resource Point Arguello, Lompoc, Santa Maria, Nipomo, Arroyo Grande, Port San Luis Is Part Of A related resource in which the described resource is physically or logically included. "40" in california coast series 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 ISC 144 Map Drawers Still Image A static visual representation. Examples of still images are: paintings, drawings, graphic designs, plans and maps. Recommended best practice is to assign the type "text" to images of textual materials. Physical Dimensions The actual physical size of the original image. 0/1 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 118 Title A name given to the resource Point Sal, Calif. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Point Sal, CA Quadrangle Creator An entity primarily responsible for making the resource US Geological Survey Date A point or period of time associated with an event in the lifecycle of the resource 1959 Source A related resource from which the described resource is derived MAP144A-4 Publisher An entity responsible for making the resource available US Geological Survey Subject The topic of the resource Topography Spatial Coverage Spatial characteristics of the resource. California Coast, United States Description An account of the resource 1:62500 Medium The material or physical carrier of the resource. 1 Has Version A related resource that is a version, edition, or adaptation of the described resource. <a href="https://www.sciencebase.gov/catalog/item/58955123e4b0fa1e59ba8aa0" target="_blank" rel="noreferrer">Digital Map Link</a> Relation A related resource Point Arguello, Lompoc, Santa Maria, Nipomo, Arroyo Grande, Port San Luis Is Part Of A related resource in which the described resource is physically or logically included. "40" in california coast series 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 (BB) Boulder Batholith Suite -- Montana Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context BB-30 Title A name given to the resource Porphyritic andesite Spatial Coverage Spatial characteristics of the resource. Boulder, Montana Accrual Periodicity The frequency with which items are added to a collection. 1981 Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/files/original/5e22b0725bdf1cee9c3642dded438a46.pdf">BB Rock Suite</a> Description An account of the resource massive, tabular, sharp-edged blocks Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. https://www.geosciencecollections.milne-library.org/files/original/3e9ebbfbecc03203e9bf5703269c2a77.JPG 356338eb6a3e9a47c5b844206fcba035 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2272 Height 1704 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/38ad827440d32bc4b91aa9002943cb94.jpg 20bbcd04da5357fcbbf0d45e9c8f650a Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource (NAO) Ophiolite Suite -- Northern Apennines, Italy Description An account of the resource The suite consists of samples from an ophiolite suite that outcrops in 3 locations in the Apennine mountain range in northern Italy.Â The units are severely imbricated and folded.Â The units are Cretaceous-Eocene in age.Â The units consist of ultramafic rock, gabbro and peridotite instrusions, and basaltic magmas. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Spatial Coverage Spatial characteristics of the resource. Northern Apennines, Liguria Region, Italy Samples 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 15 are taken from the region around Bargone, Italy Samples 14, 16, 17, 18, 19, 20, and 21 are taken from the region around Sassello, Italy Sample 22 is taken from outside Genoa, Italy Date A point or period of time associated with an event in the lifecycle of the resource 1982 Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/" target="_blank">The Geneseo Geoscience Collection</a> Identifier An unambiguous reference to the resource within a given context NAO-01 to NAO-22 Temporal Coverage Temporal characteristics of the resource. Triassic - Eocene Accrual Method The method by which items are added to a collection. Purchased by Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Lagabrielle, Y.,Â and Cannat, M., 1990, Alpine Jurassic ophiolites resemble the modern central Atlantic basement: Geology, v. 18, p. 319-322 Link:Â <a href="http://geology.geoscienceworld.org/content/18/4/319.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This fairly short article gives some insight into the development of the North Apennine Ophiolites with a fairly recent view on the matter.</li> </ul> Additional Resources: Garuti, G., and Zaccarini, F., 2005, Minerals of Au, Ag and U in Volcanic-Rock-Associated Massive Sulfide Deposits of the Northern Apennine Ophiolite, Italy: The Canadian Mineralogist, v. 43, p. 935-950 DOI: <a href="http://dx.doi.org/10.2113/gscanmin.43.3.935" target="_blank">10.2113/gscanmin.43.3.935</a> <ul><li>This article explores the elemental composition of the North Apennine Ophiolite sequence and uses that to determine previous geologic events.</li> </ul> Garuti, G., Zaccarini, F., Scacchetti, M., and Bartoli, O., 2011, The Pb-rich sulfide veins in the Boccassuolo ophiolite: Implications for the geochemical evolution of the hydrothermal activity across the ocean-continent transition in the Ligurian Tethys (Northern-Apennine, Italy): Lithos, v. 124, p. 243-254 DOI:Â <a title="10.1016/j.lithos.2010.11.006" href="http://dx.doi.org/10.1016/j.lithos.2010.11.006" target="_blank">10.1016/j.lithos.2010.11.006</a> <ul><li>This article explores the chemical composition of the ophiolite sequence under a different name and ties it into the formation history.</li> </ul> Garzanti, E., Canclini, S., Foggia, F.M., and Petrella, N., 2002, Unraveling Magmatic and Orogenic Provenance in Modern Sand: The Back-Arc Side of the Apennine Thrust Belt, Italy: Journal of Sedimentary Research, v. 72, p. 2-17 DOI:Â <a title="10.1306/051801720002" href="http://dx.doi.org/10.1306/051801720002" target="_blank">10.1306/051801720002</a> <ul><li>This article goes into great detail on the provenance characteristics for a number of sands. including sands originating from the North Apennine Ophiolite sequence.</li> </ul> Cibin, U., Spadafora, E., Zuffa, G.G., and Castellarin, A., 2001, Continental collision history from arenites of episutural basins in the Northern Apennines, Italy: Geological Society of America Bulletin, v. 113, p. 4-19 Link: <a title="GeoScienceWorld" href="http://bulletin.geoscienceworld.org/content/113/1/4.full.pdf" target="_blank">GeoScienceWorld</a> <ul><li>This article goes into detail about the deformations experienced by the North Apennine Ophiolites after the Eocene.</li> </ul> Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Porphyritic Basalt Description An account of the resource Basalt dike in gabbro with prehnite-pumpellyite overprint. Date A point or period of time associated with an event in the lifecycle of the resource no date Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/items/show/34">Northern Apennines Ophiolites Western Minerals Supplementary Information</a> Identifier An unambiguous reference to the resource within a given context NAO-8 Spatial Coverage Spatial characteristics of the resource. Bargonasco, Italy Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Basalt dike Temporal Coverage Temporal characteristics of the resource. Eocene-Cretaceous 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 (SE) Southeastern Igneous Suite -- Southeastern United States Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context SE-6 Title A name given to the resource Porphyritic Biotite Granite Spatial Coverage Spatial characteristics of the resource. Fayette County, Georgia Accrual Periodicity The frequency with which items are added to a collection. 7/21/1971 Contributor An entity responsible for making contributions to the resource Geoscience Service & Supplies Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/files/original/4ee10b43b24c8c4757ea46f6ecefea71.pdf">SE Rock Suite</a> Description An account of the resource Fedlspar and quartz exhibit fracturing Accrual Method The method by which items are added to a collection. Purchased from Geoscience Service & Supplies 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 (SE) Southeastern Igneous Suite -- Southeastern United States Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context SE-9 Title A name given to the resource Porphyritic Biotite Granite Spatial Coverage Spatial characteristics of the resource. Warren County, Georgia Accrual Periodicity The frequency with which items are added to a collection. 7/21/1971 Contributor An entity responsible for making contributions to the resource Geoscience Service & Supplies Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/files/original/4ee10b43b24c8c4757ea46f6ecefea71.pdf">SE Rock Suite</a> Description An account of the resource Biotite and feldspar are aligned, giving the rock a texture like porphyroblastic gneiss, some feldpsar has been altered to sericite, and some larger feldspar crystals are fractured Accrual Method The method by which items are added to a collection. Purchased from Geoscience Service & Supplies https://www.geosciencecollections.milne-library.org/files/original/e2a4c16dd0b56ba71741b3b5f34f108a.jpg 746f360af051b398798b084cda1278cf Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2592 Height 1936 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/1efcf0fbe9299f55887192a483320a78.jpg b99c481d58c1a4b77bb1d36a21b2169b Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2592 Height 1936 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/61f5e9f8e84b3caaa8c53b2cf94bc075.JPG 06f190feda6ad51aafc37cfeeb976aea Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2560 Height 1920 Bit Depth 8 Channels 3 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 (SFM) Igneous Suite -- St. Francois Mountains, Southeastern Missouri Description An account of the resource This collection is composed of igneous volcanic and intrusive rocks from the St. Francois Mountains of Missouri. The variation within the collection can be used to explain the geologic history of the area. The St. Francois Mountains batholith was formed by granitic intrusions into Precambrian rhyolites, tuffs, and breccias. Then basalt, diabase, and porphyritic intrusions cut the granitoids. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start here:Â Bickford, M.E. and Mose, D.G., 1974, Geochronology of Precambrian rocks, St. Francois Mountains, South eastern Missouri: GSA Special Papers 1975, v. 165, p. 1-48 doi: <a href="http://dx.doi.org/10.1130/SPE165-p1" target="_blank">http://dx.doi.org/10.1130/SPE165-p1 </a> <ul><li>Early study of the geochronology of the Precambrian rocks within the St. Francois mountains. Provides further insight upon the sequence discussed in the dscription.</li> </ul> Meert, J.G. and Stuckey, W., 2002, Revisiting the paleomagnetism of the 1.476 Ga St. Francois Mountains igneous province, Missouri: Tectonics v. 21, Issue 2, p. 1-19 doi: <a href="http://dx.doi.org/10.1029/2000TC001265%20" target="_blank">http://dx.doi.org/10.1029/2000TC001265 </a> <ul><li>Information acquired from paleomagnestism studies of the St. Francois igneous provence has proven fruitful for determining an acient paleomagnetic pole for Laurentia.Â </li> </ul> Menuge, J.F, Brewer, T.S., and Seeger, C.M., 2002, Petrogenesis of metaluminous A-type rhyolites from the St. Francois Mountains, Missouri and the Mesoproterozoic evolution of the southern Laurentian Margin: Precambrian Research, volume 113, issues 3-4, p. 269-291 doi: <a href="http//dx.doi.org/10.1016/S0301-9268(01)00211-X%20" target="_blank">http//dx.doi.org/10.1016/S0301-9268(01)00211-X </a> <ul><li>Trace elemental analysis of Precambrian rocks from the SFM provide insight into the condition of crystallization and the elemental constituents which played a role into the interesting history of this rhyolitic provence.Â </li> </ul> Rohs, R. C, and Van Schmus, W.R., 2006, Isotopic connection between basement rocks exposed in the St. Francois Mountains and the arbucks Mountains southern mid-continent, North America: International Journal of Earth Sciences, volume 96, Issue 4, p. 599-611 doi: <a href="http://dx.doi.org/10.1007/s00531-006-0123-5" target="_blank">http://dx.doi.org/10.1007/s00531-006-0123-5 </a> <ul><li>Radiometric study of the SFM provence and the Arbuckle mountains of southern Oklahoma suggests a common source.Â </li> </ul> Wenner, D. and Taylor Jr., H.P., 1976, Oxygen and hydrogen isotope studies of a Precambian granite-rhyolite terrane, ST. Francois Mountains, southeastern Missouri: Geological Society of America bulletin v. 87, no. 11, p.1587-1598 doi: <a href="http://dx.doi.org/10.1130/0016-7606" target="_blank">http://dx.doi.org/10.1130/0016-7606 </a> <ul><li>Isotopic analysis of oxygen isotope content within mineral grains within the Precambrian rhyolitic rocks of the SFM yields data that suggests Precambrian oceans were similar to modern day meteoric oceans.</li> </ul> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Spatial Coverage Spatial characteristics of the resource. St. Francois Mountains, Ozark region of Southeastern Missouri Temporal Coverage Temporal characteristics of the resource. Precambrian (1.476 Ga) Date A point or period of time associated with an event in the lifecycle of the resource January 20, 1969 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 Porphyritic Granite Dike Description An account of the resource Hand Sample: Phaneritic granite with coarse-grained phenocrysts of smokey quartz and generally smaller crystals including potassium feldspar. Weathers to orange on one side and some light-gray material on the other. Thin Section: 25% coarse-grained quartz phenocrysts in a matrix of 40% fine-grained rectangular plagioclase laths, 30% fine-grained alkali feldspar, and 30% fine-grained quartz. Date A point or period of time associated with an event in the lifecycle of the resource 1/20/1969 Identifier An unambiguous reference to the resource within a given context SFM-24 Spatial Coverage Spatial characteristics of the resource. St. Francois Mountains Batholith, Missouri Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/collections/show/15">St. Francois Mountains Suite</a> Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. 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 (WMB) White Mountains Batholith -- New Hampshire Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 2 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 WMB-10 Title A name given to the resource Porphyritic quartz syenite Spatial Coverage Spatial characteristics of the resource. Kancamagus Hwy.; Across from and ~100 ft. W of parking lot at Lower Falls Scenic area. near Bartlett, NH ~1/2 mile west of eastern boundary of Crawford Notch quadrangle map. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/files/original/53c413d54ead7c05b0db1bd214fc9f41.pdf">WMB Rock Suite</a> Description An account of the resource Sample from a ring dike and is fine-grained and quartz poor. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Albany porphyritic quartz syenite 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 (WMB) White Mountains Batholith -- New Hampshire Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context WMB-16 Title A name given to the resource Porphyritic quartz syenite Spatial Coverage Spatial characteristics of the resource. 0.4 miles E. of Hwy. 302-16. E. of Lower Bartlett, NH; E. Branch of the Seco River Central region of North Conway quadrangle map, NH Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/files/original/53c413d54ead7c05b0db1bd214fc9f41.pdf">WMB Rock Suite</a> Description An account of the resource Contains large phenocrysts of perthite. Rocks in the outcrop also contain abundant mafic xenoliths. Sample collected from a ring dike The bulk of the rock contains quartz, k-spar, and amphibole. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Albany porphyritic quartz syenite 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 (WMB) White Mountains Batholith -- New Hampshire Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context WMB-17 Title A name given to the resource Porphyritic quartz syenite Spatial Coverage Spatial characteristics of the resource. Hwy. 16B, 0.3 miles N of Jackson, NH W-central region of North Conway quadrangle map, NH Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/files/original/53c413d54ead7c05b0db1bd214fc9f41.pdf">WMB Rock Suite</a> Description An account of the resource An example of the 3rd ring dike. This outcrop also contains dark xenoliths. Sample contains phenocrysts of perthite. The bulk of the rock contains quartz, k-spar, and amphibole. Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Albany porphyritic quartz syenite (3rd Ring Dike) 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 (SE) Southeastern Igneous Suite -- Southeastern United States Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 2 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 SE-10 Title A name given to the resource Porphyritic Rhyolite Spatial Coverage Spatial characteristics of the resource. Montgomery County, North Carolina Accrual Periodicity The frequency with which items are added to a collection. 7/21/1971 Contributor An entity responsible for making contributions to the resource Geoscience Service & Supplies Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/files/original/4ee10b43b24c8c4757ea46f6ecefea71.pdf">SE Rock Suite</a> Description An account of the resource Contains orthoclase, ligoclase, and quartz phenocrysts and has alterations of kaolinite, sericite, and epidote Accrual Method The method by which items are added to a collection. Purchased from Geoscience Service & Supplies 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 (SE) Southeastern Igneous Suite -- Southeastern United States Rock A physical material with a mineral composition. Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context SE-12 Title A name given to the resource Porphyritic Rhyolite Spatial Coverage Spatial characteristics of the resource. Lincoln County, Georgia Accrual Periodicity The frequency with which items are added to a collection. 7/21/1971 Contributor An entity responsible for making contributions to the resource Geoscience Service & Supplies Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://geosciencecollections.milne-library.org/files/original/4ee10b43b24c8c4757ea46f6ecefea71.pdf">SE Rock Suite</a> Description An account of the resource Quartz and feldspar phenocrysts, rounded diabase inclusions Accrual Method The method by which items are added to a collection. Purchased from Geoscience Service & Supplies https://www.geosciencecollections.milne-library.org/files/original/7f5e1ae16c57a8913e938dbc912432cf.JPG c0c9ad8705a33da56c195d66c84f2aea 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 PH-10 Hand Sample. https://www.geosciencecollections.milne-library.org/files/original/01788529f1cbd433622dc7d13ea0977b.JPG 62c0ab92aa162f912de8642239c417af 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 PH-10 Thin Section in XPL. https://www.geosciencecollections.milne-library.org/files/original/d51f80d6e8a2982fbd0546be7ede4852.JPG c4bb5b25ce4b33a1f989462b0e5309df 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 PH-10 Thin Section in 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 (PH) Powderhorn (Iron Hill) Carbonatite Suite -- Gunnison County, SW Colorado Description An account of the resource The Powderhorn (Iron Hill) Carbonatite is located in Gunnison County in about the center of the southwestern quadrant of Colorado. It is a pear-shaped body which is essentially conical at depth, and is exposed over an area of about 12 square miles. The carbonatite body covers about 2 and a half square miles; About 70 percent of the in pyroxenite which was subsequently intruded by or replaced by nepheline and melilite-bearing rocks; magnetite-perovskite, and carbonatite. Contributor An entity responsible for making contributions to the resource Western Minerals Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Mitchell, R.H., 2014, Primary and secondary niobium mineral deposits associated with carbonatites:Â Ore Geology Reviews,Â v. 64, p.Â 626-641,Â doi:10.1016/j.oregeorev.2014.03.010. <a title="Full Article." href="http://dx.doi.org/10.1016/j.oregeorev.2014.03.010">Full Article.</a> <ul><li>Focuses specifically on the formation of niobium in carbonatites but includes an excellent baseline description of carbonatites.</li> </ul>Additional Resources: Nash, W.P., 1972, Mineralogy and Petrology of the Iron HillÂ CarbonatiteÂ Complex, Colorado: Geological Society of America Bulletin, v.Â 83, p.Â 1361-1382, doi:Â 10.1130/0016-7606(1972)83[1361:MAPOTI]2.0.CO;2. <a title="Full Article." href="http://dx.doi.org/10.1130/0016-7606(1972)83%5B1361:MAPOTI%5D2.0.CO;2">Full Article.</a> <ul><li>Bulk rock chemistry description & maps/diagrams showing the location of rocks in the Powderhorn Carbonatite.</li> </ul> Temple, R.K., Grogran, R.M.,Â 1965, Carbonatite and related alkalic rocks at powder horn, Colorado:Â Economic geology and the bulletin of the Society of Economic Geologists, v. 60, p.Â 672-692, doi:Â 10.2113/gsecongeo.60.4.672. <a title="Full Article" href="http://dx.doi.org/10.2113/gsecongeo.60.4.672.">Full Article.</a> <ul><li>Basic information regarding the structure, geochemistry, and petrogenesis of the Powderhorn Carbonatite.</li> </ul> Van Gosen, B. S., Lowers, H. A., 2007, Iron Hill (Powderhorn)Â carbonatiteÂ complex, Gunnison County, CO; a potential source of several uncommon mineral resources: Mining Engineering, v. 59, p. 56-62, doi: N/AÂ <a title="Abstract" href="http://me.smenet.org/abstract.cfm?articleID=1143&page=56">Abstract.</a> <ul><li>Mineral resource potential: titanium, iron, vermiculite, vanadium, and nephaline.Â </li> </ul> Olson, J.C., Hedland, D.C., 1981, Alkalic rocks and resources of thorium and associated elements in the Powderhorn District, Gunnison County, Colorado: USGS Numbered Series, Professional Paper , v. 1049, p. C1-C34Â Â doi: N/A. <a title="Full Article" href="http://pubs.usgs.gov/pp/1049c/report.pdf">Full Article.</a> <ul><li>Extensive report by the USGS regarding rock type and history of formation (geologic ages).</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 Porphyroblasic gneiss (Fenitized) Date A point or period of time associated with an event in the lifecycle of the resource no date Contributor An entity responsible for making contributions to the resource Western Minerals Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/items/show/33">Powderhorn Carbonatite Minerals Supplementary Information</a> Identifier An unambiguous reference to the resource within a given context PH-10 Spatial Coverage Spatial characteristics of the resource. Huntsman Gulch, CO Accrual Method The method by which items are added to a collection. Purchased from Western Minerals Inc. Description An account of the resource Fenitized porphyroblastic Gneiss. Hand Sample: Entirely coarse-grained rock except for 2 cm wide dark fine grained band. Obvious traces of oxidation appear on all sides, dominating the most weathered sides of the rock. https://www.geosciencecollections.milne-library.org/files/original/c2696492d1d06aaaa9f5ab22accaed2e.JPG 750af74bda8d4d48c2538285e5fc6854 https://www.geosciencecollections.milne-library.org/files/original/bf3a226acf9165ec38d6c80afa02fd14.jpg e1af83df56d5efe1532af731d391c480 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 1840 Height 3264 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/fea73e81a8a50b52803d79dbf74e298e.JPG 75ae42c9579c4413fab05d63a0eb9080 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2560 Height 1920 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/50a0a6712b6f716d2d5a74a0f7c7d6c7.JPG 23679b1557f34167d73148cdd131287d https://www.geosciencecollections.milne-library.org/files/original/3aab31189e886b2d5bea07194520e836.JPG ef69cebb18213b8f9bbe85898e33bc8a 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 (NS) Meta-Pelite Suite -- Shelburne, Nova Scotia Description An account of the resource Samples from the Shelburne area representative of the full range of metamorphic grades. This suite includes a high grade pelitic xenolith as well as samples of the Shelburne granite and aluminum-rich pegmatites. Furthermore a lampophric dyke that intruded from the basement rock to the Meguma Terrace is featured. 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. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Currie, K.L., Whalen, J.B., Davis, W.J., Longstaffe, F.J., and Cousens, B.L., 1998, Geochemical evolution of peraluminous plutons in southern Nova Scotia, Canada-a pegmatite-poor suite:Lithos, v. 44, p.117-140, doi:<a href="http://dx.doi.org/10.1016/S0024-4937(98)0051-6">10.1016/S0024-4937(98)0051-6</a> â€¢ This paper gives information on the geology of southern Nova Scotia and provides a strong example for the rock suite present. Additional Resources: Cambell, D., Shimeld, J., Deptuck, M.E., Mosher, J.C., Seismic Stratigraphic framework and depositional history of a large Upper Cretaceous and Cenozoic depocenter off southwest Nova Scotia, Canada: Marine and Petroleum Geology, v. 65, p. 22-42, doi: <a href="http://dx.doi.org/10.1016/j.marpetgeo.2015.03.016">10.1016/j.marpetgeo.2015.03.016</a>Â â€¢ This paper is useful as it outlines the stratrigraphy and depositional history of the region. This is key in understanding much of the regions history and allows geologists to better understand what exactly is metamorphosed and why. Greenough, J.D., Jone, M.L., and Mossman, D.J., 1989, The Sr isotopic composition of early Jurassic mafic rocks of Atlantic Canada: Implications for assimilation and injection mechanism affecting mafic dykes: Chemical Geology, v. 80, p. 17-26, doi: <a href="http://dx.doi/org/10.1016/0168-9622(89)90044-4">10.1016/0168-9622(89)90044-4</a> â€¢ This paper is useful for describing the dykes in Atlantic Canada as well as injections that formed much of the suite. Merle, R., Marzoli, A., Reisberg, L., Bertrand, H., Nemchin, A., Chiaradia, M., Callegaro, S., Jourdan, F., Bellieni, G., Kontak, D., Puffer, J., Mchone, J., 2014, Sr, Nd, Pb, and Os isotope systematics of CAMP tholeiites from Eastern North America (ENA): Evidence of a subduction-enriched mantle source: Journal of Petrology, v. 55, p. 133-180, doi: <a href="http://dx.doi.org/10.1093/petrology/egt063">10.1093/petrology/egt063</a> â€¢ This paper outline the subduction in the region as well as outling the petrologic controls on the region, specifically with an eye on Seldon, Nova Soctia. this is particularly imporant when considering the pegmatites in the suite and other igneous bodies. Muecke, G. K., Pride, C., and Sarkar, P., 1979, Rare-earth element geochemistry of regional metamorphic rocks: Physics and Chemistry of the Earth, v. 11, p. 449-464, doi:<a href="http://dx.doi.org/10.1016/0079-1946(79)90043-0">10.1016/0079-1946(79)90043-0</a> â€¢ This paper is useful for as it describes the geochemistry of the suite on a large scale and provides reference for what should be seen in the suite. Date A point or period of time associated with an event in the lifecycle of the resource Samples are Cambrian to lower Ordovician greywackes and shales that were regionally metamorphosed and intruded by granites during the Devonian. Samples taken in 1988. Spatial Coverage Spatial characteristics of the resource. These samples were taken from the Shelburne area of Nova Scotia. This is the southeastern shore of Nova Scotia. Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category N/A 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 Porphyroblastic andalusite-cordierite-staurolite-biotite-garnet schist Description An account of the resource Macroscopic: Mega-porphyroblastic andalusite, cordierite, staurolite, biotite, garnet schist. Relict bedding, cross bedding or graded bedding may be apparent in some samples. Mineral zone: staurolite-andalusite. Microscopic: Large garnet phenocrysts within a very fine grained matrix containing biotite. Thin section pictures in XPL unless otherwise noted in the title of the picuture. Thin sections are 3mm across. Date A point or period of time associated with an event in the lifecycle of the resource N/A Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/collections/show/14">Pelitic Metamorphic Suite, Shelburne, Nova Scotia</a> Identifier An unambiguous reference to the resource within a given context NS-6 Spatial Coverage Spatial characteristics of the resource. Nova Scotia Temporal Coverage Temporal characteristics of the resource. N/A https://www.geosciencecollections.milne-library.org/files/original/8d463cb32cb00be93ca968f9321f5213.JPG 507f6592fc7bc9d57d6cb6d8e6450943 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 1936 Height 2592 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/5507cbbdaddd23a2ee8776bd7b8d7dd4.JPG 9fae55d9eb097364748bb2e727c279c5 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2560 Height 1920 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/9c06eca2908f4faf97f86218a98349d2.JPG 9654de4e07da25e6a0610b71930c2e50 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2560 Height 1920 Bit Depth 8 Channels 3 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 (KBR) Karroo Igneous Complex -- Birds River, South Africa Description An account of the resource The Birds River Complex is a "Bell-Jar" intrusion first described by du Toit in 1905 and then by Ealey and Robey in 1976. One of the best exposed sections across the margin of the complex is on the farm Denwood, in the southwestern corner of the complex. The samples were collected from a mafic intrusion near Denwood farm. These samples from the Karroo Complex were collected from the previously studied section of the complex and neighboring areas. Contributor An entity responsible for making contributions to the resource Dr. Brian Lock, Rhodes University Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Cox, K.G., 1972, The Karroo Volcanic Cycle: Journal of the Geological Society, v. 128, p. 311-336.Â doi: 10.1144/gsjgs. 128.4.0311. <ul><li>The petrogenesis of the Mesozoic igneous rocks of south-Eastern Africa is related to the tectonic event believed to be the initiation of the break up of Gondwanaland. The cycle began with the rise of potassium-rich picritic magma, the source material for rocks of the northern province, Rhodesia. On top of and peripheral to the main magma body, a zone of sodic magma was generated and formed some of the rocks of the north and most southern rocks.</li> </ul> Additional resources: White, R.S., 1992, Magmatism During and After Continental Break-Up, Geological Society, London, Special Publications, v. 68, p. 1-16. doi:Â 10.1144/GSL.SP.1992.068.01.0. <ul><li>Magmatism that goes along with continental break-up is caused primarily by decompression melting of the underlying mantle as it rises up beneath the rift. The amount of melt produced is determined by the asthenospheric mantle temperature and on the rate of rifting.Â </li> </ul>Eales, H.V., and van Robey, J.A., 1976, Differentiation of Tholeiitic Karroo Magma at Birds River, South Africa, Contributions to Mineralogy and Petrology 10. v. 56, p. 101-117. doi:Â 10.1007/BF00375423 <ul><li>Strongly fractionated residue from the partial crystallization of tholeiitic gabbroic magma was emplaced at depth within sediment of the upper part of the Karroo succession. The residue was most likely tapped from a deeper intrusion during cauldron subsidence, but was engulfed by a later intrusion of olivine gabbro on a large scale.</li> </ul> Walker, F., and Poldervaart, A., 1949, Karroo Dolerites of the Union of South Africa, Geological Society of America Bulletin, v. 60, p. 591-706. doi: 10.1130/0016-7606(1949)60[591:KDOTUO]2.0.CO;2 <ul><li>The Karroo dolerites are the result of the intrusive phase of the early Jurassic basalts that built up the Basutoland lava plateau. Most of the dolerites show little differentiation but olivine rich types and acidic veins have been recorded. The magma had an effect on the sedimentary rocks; many of the rocks described as granophyre were found to be transformed siltstone. The dolerites occur as sills and dikes but "bell-jar inclusions" occur (the Bird's River complex is a bell jar shaped inclusion).Â </li> </ul> Eales, H.V., and Booth P.W.K., 1974, The Birds River Gabbro Complex, Dordrecht District, Transactions of the Geological Society of South Africa, v. 77, p. 1-15. <ul><li>On the gabbros of the Birds River Complex.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Lesotho Formation Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Porphyroblastic Metasediments Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Hybrid rock Description An account of the resource The porphyroblastic metasediments/hybrid rocks were interpreted by Eales and his co-workers to be metamorphosed "Red Beds" Formation sediments but could be magmatic in origin. The samples illustrate the range in textures; see KBR 13 and KBR 14 to note this range. This sample has an aphanitic porphyritic texture. There are unfoliated coarse-grained metasediments (2 mm- 4 mm) and subhedral muscovite phenocrysts (2 mm - 3 mm) as well as red anhedral phenocrysts. There is a rusty-looking weathered surface. In thin section, radiating pyroxenes are clearly visible. Thin sections are shown in plain polarized light and cross polarized light at 40x magnification. The rock is comprised of 70% plagioclase, 22% pyroxene (mainly augite), and 8% opaques. Date A point or period of time associated with an event in the lifecycle of the resource No date given. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. http://www.geosciencecollections.milne-library.org/collections/show/17 Identifier An unambiguous reference to the resource within a given context KBR-12 Spatial Coverage Spatial characteristics of the resource. Karoo- Birds River, Eastern Cape, South Africa Temporal Coverage Temporal characteristics of the resource. 183-179 Ma (Jurassic) Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. https://www.geosciencecollections.milne-library.org/files/original/3ddf7875f40f70ece1c9c634a9066336.JPG 53584456161200752f6ffe1e4f395ae7 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 1936 Height 2592 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/df3eff3740262a42fda3af29a5dae04d.JPG eca507ac6778b838de3c6d5d425bb805 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2560 Height 1920 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/5f5d36ab885ce119e95bba00cdcf0494.JPG fceb5cd38354275960b453180d6aea45 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2560 Height 1920 Bit Depth 8 Channels 3 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 (KBR) Karroo Igneous Complex -- Birds River, South Africa Description An account of the resource The Birds River Complex is a "Bell-Jar" intrusion first described by du Toit in 1905 and then by Ealey and Robey in 1976. One of the best exposed sections across the margin of the complex is on the farm Denwood, in the southwestern corner of the complex. The samples were collected from a mafic intrusion near Denwood farm. These samples from the Karroo Complex were collected from the previously studied section of the complex and neighboring areas. Contributor An entity responsible for making contributions to the resource Dr. Brian Lock, Rhodes University Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Cox, K.G., 1972, The Karroo Volcanic Cycle: Journal of the Geological Society, v. 128, p. 311-336.Â doi: 10.1144/gsjgs. 128.4.0311. <ul><li>The petrogenesis of the Mesozoic igneous rocks of south-Eastern Africa is related to the tectonic event believed to be the initiation of the break up of Gondwanaland. The cycle began with the rise of potassium-rich picritic magma, the source material for rocks of the northern province, Rhodesia. On top of and peripheral to the main magma body, a zone of sodic magma was generated and formed some of the rocks of the north and most southern rocks.</li> </ul> Additional resources: White, R.S., 1992, Magmatism During and After Continental Break-Up, Geological Society, London, Special Publications, v. 68, p. 1-16. doi:Â 10.1144/GSL.SP.1992.068.01.0. <ul><li>Magmatism that goes along with continental break-up is caused primarily by decompression melting of the underlying mantle as it rises up beneath the rift. The amount of melt produced is determined by the asthenospheric mantle temperature and on the rate of rifting.Â </li> </ul>Eales, H.V., and van Robey, J.A., 1976, Differentiation of Tholeiitic Karroo Magma at Birds River, South Africa, Contributions to Mineralogy and Petrology 10. v. 56, p. 101-117. doi:Â 10.1007/BF00375423 <ul><li>Strongly fractionated residue from the partial crystallization of tholeiitic gabbroic magma was emplaced at depth within sediment of the upper part of the Karroo succession. The residue was most likely tapped from a deeper intrusion during cauldron subsidence, but was engulfed by a later intrusion of olivine gabbro on a large scale.</li> </ul> Walker, F., and Poldervaart, A., 1949, Karroo Dolerites of the Union of South Africa, Geological Society of America Bulletin, v. 60, p. 591-706. doi: 10.1130/0016-7606(1949)60[591:KDOTUO]2.0.CO;2 <ul><li>The Karroo dolerites are the result of the intrusive phase of the early Jurassic basalts that built up the Basutoland lava plateau. Most of the dolerites show little differentiation but olivine rich types and acidic veins have been recorded. The magma had an effect on the sedimentary rocks; many of the rocks described as granophyre were found to be transformed siltstone. The dolerites occur as sills and dikes but "bell-jar inclusions" occur (the Bird's River complex is a bell jar shaped inclusion).Â </li> </ul> Eales, H.V., and Booth P.W.K., 1974, The Birds River Gabbro Complex, Dordrecht District, Transactions of the Geological Society of South Africa, v. 77, p. 1-15. <ul><li>On the gabbros of the Birds River Complex.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Lesotho Formation Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Porphyroblastic Metasediments Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Hybrid rock Description An account of the resource The porphyroblastic metasediments/hybrid rocks were interpreted by Eales and his co-workers to be metamorphosed "Red Beds" Formation sediments but could be magmatic in origin. The samples illustrate the range in textures; see KBR 12 and KBR 14 to note this range. This sample has an aphanitic- porphyritic texture and is holocrystalline. There is a light gray anhedral ground mass and medium-grained phenocrysts (1 mm- 3 mm).There are fine, snaky veins of reddish material on the fresh surface. Minor euhedral phenocrysts of plagioclase with reaction rims (4 mm). The thin sections shown in plain polarized light and cross polarized light at 40x magnification. The rock is 40% plagioclase, 20% pyroxenes (Enstatite), and 20% opaques. Date A point or period of time associated with an event in the lifecycle of the resource No date given. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. http://www.geosciencecollections.milne-library.org/collections/show/17 Identifier An unambiguous reference to the resource within a given context KBR-13 Spatial Coverage Spatial characteristics of the resource. Karoo- Birds River, Eastern Cape, South Africa Temporal Coverage Temporal characteristics of the resource. 183-179 Ma (Jurassic) Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. https://www.geosciencecollections.milne-library.org/files/original/53d1f815992734a4b76ede919cacd88e.JPG 2096496c06578594ef52291e36f49180 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 1936 Height 2592 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/b23594b873408797a90ea7286d877aec.JPG 0350be826eb2464e6005c34d46cf379e Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2560 Height 1920 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/32e139a7444e9658275650d3a829e2d9.JPG 23cdee35bae810249aa885cd95d63044 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2560 Height 1920 Bit Depth 8 Channels 3 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 (KBR) Karroo Igneous Complex -- Birds River, South Africa Description An account of the resource The Birds River Complex is a "Bell-Jar" intrusion first described by du Toit in 1905 and then by Ealey and Robey in 1976. One of the best exposed sections across the margin of the complex is on the farm Denwood, in the southwestern corner of the complex. The samples were collected from a mafic intrusion near Denwood farm. These samples from the Karroo Complex were collected from the previously studied section of the complex and neighboring areas. Contributor An entity responsible for making contributions to the resource Dr. Brian Lock, Rhodes University Western Minerals, Inc. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Cox, K.G., 1972, The Karroo Volcanic Cycle: Journal of the Geological Society, v. 128, p. 311-336.Â doi: 10.1144/gsjgs. 128.4.0311. <ul><li>The petrogenesis of the Mesozoic igneous rocks of south-Eastern Africa is related to the tectonic event believed to be the initiation of the break up of Gondwanaland. The cycle began with the rise of potassium-rich picritic magma, the source material for rocks of the northern province, Rhodesia. On top of and peripheral to the main magma body, a zone of sodic magma was generated and formed some of the rocks of the north and most southern rocks.</li> </ul> Additional resources: White, R.S., 1992, Magmatism During and After Continental Break-Up, Geological Society, London, Special Publications, v. 68, p. 1-16. doi:Â 10.1144/GSL.SP.1992.068.01.0. <ul><li>Magmatism that goes along with continental break-up is caused primarily by decompression melting of the underlying mantle as it rises up beneath the rift. The amount of melt produced is determined by the asthenospheric mantle temperature and on the rate of rifting.Â </li> </ul>Eales, H.V., and van Robey, J.A., 1976, Differentiation of Tholeiitic Karroo Magma at Birds River, South Africa, Contributions to Mineralogy and Petrology 10. v. 56, p. 101-117. doi:Â 10.1007/BF00375423 <ul><li>Strongly fractionated residue from the partial crystallization of tholeiitic gabbroic magma was emplaced at depth within sediment of the upper part of the Karroo succession. The residue was most likely tapped from a deeper intrusion during cauldron subsidence, but was engulfed by a later intrusion of olivine gabbro on a large scale.</li> </ul> Walker, F., and Poldervaart, A., 1949, Karroo Dolerites of the Union of South Africa, Geological Society of America Bulletin, v. 60, p. 591-706. doi: 10.1130/0016-7606(1949)60[591:KDOTUO]2.0.CO;2 <ul><li>The Karroo dolerites are the result of the intrusive phase of the early Jurassic basalts that built up the Basutoland lava plateau. Most of the dolerites show little differentiation but olivine rich types and acidic veins have been recorded. The magma had an effect on the sedimentary rocks; many of the rocks described as granophyre were found to be transformed siltstone. The dolerites occur as sills and dikes but "bell-jar inclusions" occur (the Bird's River complex is a bell jar shaped inclusion).Â </li> </ul> Eales, H.V., and Booth P.W.K., 1974, The Birds River Gabbro Complex, Dordrecht District, Transactions of the Geological Society of South Africa, v. 77, p. 1-15. <ul><li>On the gabbros of the Birds River Complex.</li> </ul> Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category Lesotho Formation Number of Thin Sections Number of thin sections associated with this sample 1 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Porphyroblastic Metasediments Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Hybrid rock Description An account of the resource The porphyroblastic metasediments/hybrid rocks were interpreted by Eales and his co-workers to be metamorphosed "Red Beds" Formation sediments but could be magmatic in origin. The samples illustrate the range in textures; see KBR 12 and KBR 13 to note this range. This sample is medium grained, holocrystalline, and has a hypidiomorphic-granular texture. It has dark gray crystals, ranging from < 1 mm- 3 mm. Dramatic labradorite-like striations cover about half of the rock. Groups of striations are roughly at right angles to one another. The rusty looking weathered surface is more vibrant on this rock (than the other samples). The thin sections shown in plain polarized Light and cross polarized light at 40x magnification. The rock is 60% plagioclase, 40% pyroxenes (mainly enstatite), and <1% opaques. Date A point or period of time associated with an event in the lifecycle of the resource No date given. Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. http://www.geosciencecollections.milne-library.org/collections/show/17 Identifier An unambiguous reference to the resource within a given context KBR-14 Spatial Coverage Spatial characteristics of the resource. Karoo- Birds River, Eastern Cape, South Africa Temporal Coverage Temporal characteristics of the resource. 183-179 Ma (Jurassic) Accrual Method The method by which items are added to a collection. Purchased from Western Minerals, Inc. https://www.geosciencecollections.milne-library.org/files/original/67a9b13ff99acf2fc53c944608ef6d3a.JPG 26ea152799c2d113cfc2529c85c80bf2 https://www.geosciencecollections.milne-library.org/files/original/628f91903a710bb738251dc55b06aca2.jpg 6dcf4f8876ec46d3817496c9ef07bb8e Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 1840 Height 3264 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/c1c5cee72401d308407df0a869e6746e.JPG e16e17a48e87abd1238377f5059dab23 Omeka Image File The metadata element set that was included in the `files_images` table in previous versions of Omeka. These elements are common to all image files. Width 2560 Height 1920 Bit Depth 8 Channels 3 https://www.geosciencecollections.milne-library.org/files/original/5658c3ad90cbb739ce46c289625b3ef3.JPG 1c8539131b56dc810f6124edd2e68197 https://www.geosciencecollections.milne-library.org/files/original/105ea1795ebb5ad659274b0967597769.JPG d5ea7c9aa7836c55f7578537f15126f5 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 (NS) Meta-Pelite Suite -- Shelburne, Nova Scotia Description An account of the resource Samples from the Shelburne area representative of the full range of metamorphic grades. This suite includes a high grade pelitic xenolith as well as samples of the Shelburne granite and aluminum-rich pegmatites. Furthermore a lampophric dyke that intruded from the basement rock to the Meguma Terrace is featured. 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. References A related resource that is referenced, cited, or otherwise pointed to by the described resource. Start Here: Currie, K.L., Whalen, J.B., Davis, W.J., Longstaffe, F.J., and Cousens, B.L., 1998, Geochemical evolution of peraluminous plutons in southern Nova Scotia, Canada-a pegmatite-poor suite:Lithos, v. 44, p.117-140, doi:<a href="http://dx.doi.org/10.1016/S0024-4937(98)0051-6">10.1016/S0024-4937(98)0051-6</a> â€¢ This paper gives information on the geology of southern Nova Scotia and provides a strong example for the rock suite present. Additional Resources: Cambell, D., Shimeld, J., Deptuck, M.E., Mosher, J.C., Seismic Stratigraphic framework and depositional history of a large Upper Cretaceous and Cenozoic depocenter off southwest Nova Scotia, Canada: Marine and Petroleum Geology, v. 65, p. 22-42, doi: <a href="http://dx.doi.org/10.1016/j.marpetgeo.2015.03.016">10.1016/j.marpetgeo.2015.03.016</a>Â â€¢ This paper is useful as it outlines the stratrigraphy and depositional history of the region. This is key in understanding much of the regions history and allows geologists to better understand what exactly is metamorphosed and why. Greenough, J.D., Jone, M.L., and Mossman, D.J., 1989, The Sr isotopic composition of early Jurassic mafic rocks of Atlantic Canada: Implications for assimilation and injection mechanism affecting mafic dykes: Chemical Geology, v. 80, p. 17-26, doi: <a href="http://dx.doi/org/10.1016/0168-9622(89)90044-4">10.1016/0168-9622(89)90044-4</a> â€¢ This paper is useful for describing the dykes in Atlantic Canada as well as injections that formed much of the suite. Merle, R., Marzoli, A., Reisberg, L., Bertrand, H., Nemchin, A., Chiaradia, M., Callegaro, S., Jourdan, F., Bellieni, G., Kontak, D., Puffer, J., Mchone, J., 2014, Sr, Nd, Pb, and Os isotope systematics of CAMP tholeiites from Eastern North America (ENA): Evidence of a subduction-enriched mantle source: Journal of Petrology, v. 55, p. 133-180, doi: <a href="http://dx.doi.org/10.1093/petrology/egt063">10.1093/petrology/egt063</a> â€¢ This paper outline the subduction in the region as well as outling the petrologic controls on the region, specifically with an eye on Seldon, Nova Soctia. this is particularly imporant when considering the pegmatites in the suite and other igneous bodies. Muecke, G. K., Pride, C., and Sarkar, P., 1979, Rare-earth element geochemistry of regional metamorphic rocks: Physics and Chemistry of the Earth, v. 11, p. 449-464, doi:<a href="http://dx.doi.org/10.1016/0079-1946(79)90043-0">10.1016/0079-1946(79)90043-0</a> â€¢ This paper is useful for as it describes the geochemistry of the suite on a large scale and provides reference for what should be seen in the suite. Date A point or period of time associated with an event in the lifecycle of the resource Samples are Cambrian to lower Ordovician greywackes and shales that were regionally metamorphosed and intruded by granites during the Devonian. Samples taken in 1988. Spatial Coverage Spatial characteristics of the resource. These samples were taken from the Shelburne area of Nova Scotia. This is the southeastern shore of Nova Scotia. Rock A physical material with a mineral composition. Unit Formation or other descriptive rock category N/A 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 Porphyroblastic staurolite-andalusite-garnet-biotite-plagioclase-cordierite schist Description An account of the resource Macroscopic: Porphyroblastic staurolite, andalusite, cordierite, garnet, biotite, chlorite, muscovite schist. Cross bedding or graded bedding may be apparent in some samples. Mineral zone: staurolite-andalusite. Microscopic: Large garnet phenocrysts within a very fine grained matrix containing biotite. Thin section pictures in XPL unless otherwise noted in the title of the picuture. Thin sections are 3mm across. Date A point or period of time associated with an event in the lifecycle of the resource N/A Contributor An entity responsible for making contributions to the resource Western Minerals, Inc. Is Part Of A related resource in which the described resource is physically or logically included. <a href="http://www.geosciencecollections.milne-library.org/collections/show/14">Pelitic Metamorphic Suite, Shelburne, Nova Scotia</a> Identifier An unambiguous reference to the resource within a given context NS-5 Spatial Coverage Spatial characteristics of the resource. Nova Scotia Temporal Coverage Temporal characteristics of the resource. N/A 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 Maps Still Image A static visual representation. Examples of still images are: paintings, drawings, graphic designs, plans and maps. Recommended best practice is to assign the type "text" to images of textual materials. Physical Dimensions The actual physical size of the original image. 0/1 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 117 Title A name given to the resource Port San Luis, Calif. Alternative Title An alternative name for the resource. The distinction between titles and alternative titles is application-specific. Port San Luis, CA Quadrangle Creator An entity primarily responsible for making the resource US Geological Survey Date Created Date of creation of the resource. 1951 Source A related resource from which the described resource is derived MAP144A-4 Publisher An entity responsible for making the resource available US Geological Survey Subject The topic of the resource Topography Spatial Coverage Spatial characteristics of the resource. California Coast, United States Description An account of the resource 1:62500 Extent The size or duration of the resource. 1 Has Version A related resource that is a version, edition, or adaptation of the described resource. <a href="https://www.sciencebase.gov/catalog/item/58955145e4b0fa1e59ba8ba8" target="_blank">Digital Map Link</a> Relation A related resource Point Sal, Arroyo Grande, San Luis Obispo, Cayucos Is Part Of A related resource in which the described resource is physically or logically included. "39" in california coast series