Filters: Tags: Quartz (X)
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This data release contains Rock-Eval pyrolysis, organic petrographic (reflectance), and X-ray diffraction mineralogy data for subsurface Mesozoic rock samples from the eastern onshore Gulf Coast Basin (primarily Mississippi and Louisiana). Samples were analyzed in support of the U.S. Geological Survey (USGS) assessment of undiscovered petroleum resources in the Upper Cretaceous Tuscaloosa marine shale and evaluation of shale gas prospectivity in the Aptian section of the Mississippi Salt Basin.
The mission of the USGS National Minerals Information Center (formerly the Minerals Information Team) is to collect, analyze, and disseminate information on the domestic and international supply of and demand for minerals and mineral materials essential to the U.S. economy and national security. About 90 mineral commodities are covered.The Center's goal is to provide decision makers with the information required to ensure that the Nation has an adequate and dependable supply of minerals and materials to meet its defense and economic needs at acceptable costs related to environment, energy, and economics. In addition to special data releases available through ScienceBase, annual and monthly or quarterly statistical...
Polished section showing replacement of arsenopyrite fragments by quartz and sercicite. Enlarged 100 times. Western Utah Mine. Toole County, Utah. ca. 1926. Plate 11-C, U.S.Geological Survey Professional paper 177. 1935.
Categories: Image;
Tags: Mills, Mines, Quarries,
Nolan, T.B. Collection,
Photographers,
Quartz,
Sercicite,
This data release contains the U.S. salient statistics and world production data extracted from the GEMSTONES data sheet of the USGS Mineral Commodity Summaries 2024.
This data release contains the U.S. salient statistics and world production data extracted from the GEMSTONES data sheet of the USGS Mineral Commodity Summaries 2023.
Polybasite (light gray) with bladelike outlines, inclosed by pyrargyrite (white); the dark gray is quartz. The polybasite has been made visible by brief treatment with mercuric chloride solution. Photomicrograph of polished surface of ore, Tonopah Extension mine, exact location uncertain. Nye County, Nevada. 1915. Plate 4-B in U.S. Geological Survey. Professional paper 104. 1918.
Categories: Image;
Tags: Bastin, E.S. Collection,
Mills, Mines, Quarries,
Nye County, Nevada,
Photographers,
Photomicrographs,
Transverse quartz stringers in carbonatized slate close to main vein, Rainbow Mine, adit level. Light colored streaks and patches in the wall rock are chiefly carbonate. Sierra County, California. 1924. Plate 13-A, in U.S.Geological Survey Professional paper 172. 1932.
Categories: Image;
Tags: Ferguson, H.G. Collection,
Photographers,
Rainbow Mine,
Sierra County, California,
photo print,
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