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Density and Magnetic Properties of Selected Rock Samples from the Western U.S. and Alaska
Physical properties (density, magnetic susceptibility, and remanent magnetism) from 20,000 rock samples. Data are provided in CSV format. |
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Update of the Mineral Resources Data System for California including Mineral Deposit Types
Improved information on deposit model (type) in records of this older USGS database describing sites that are located in California. Includes a list of additional deposit types needed to properly categorize the California locations. Data are provided in Microsoft Excel, CSV, and Esri personal geodatabase (Microsoft Access) formats. |
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Legacy Geochemical Data from Hardcopy Records of Selected Past U.S. Geological Survey Projects
Geochemical data from selected USGS projects from the 1960s-1980s that were previously not published as digital data. Includes geochemical analyses from 36,498 samples of various types using analytical methods and instruments that were current when those studies were carried out. Data are provided in Microsoft Access, shapefile, and CSV formats. |
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Magnetotelluric Data from the San Andreas Fault, Loma Prieta CA, 1989-1990
Magnetotelluric data collected in 1989 and 1990 using USGS portable truck mounted systems that measure the distribution of electrical conductivity beneath the surface of the earth. This release provides digital information previously collected, recovered and reformatted for use with modern software. Data are provided in MT/EMAP formats. |
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