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Borehole information from the lower Colorado River corridor, Arizona, Nevada, and California Borehole information from the lower Colorado River corridor, Arizona, Nevada, and California
This data release provides location information and lithologic intervals for boreholes compiled by the USGS between 2016 and 2020 for use during subsurface geologic mapping of the lower Colorado River corridor. The data provided include a spreadsheet of borehole information, that contains the well name, the information source, and positional information regarding the well location. A...
Carbon and oxygen isotope composition, geochemistry, and petrography of carbonate minerals in the Mountain Pass carbonatite (ver. 1.1, February 2026) Carbon and oxygen isotope composition, geochemistry, and petrography of carbonate minerals in the Mountain Pass carbonatite (ver. 1.1, February 2026)
This data release contains in situ carbon and oxygen isotope analyses of calcite and dolomite collected via secondary ion mass spectrometry (SIMS), as well as major and trace element geochemical data, bulk mineral carbon and oxygen isotope data, and whole rock geochemistry for the samples included in this study. Also included are images from analyzed thin sections that show the sample...
Carolina northern flying squirrel presence and pseudo-absence points in the Southern Appalachian red spruce-Fraser fir sky islands Carolina northern flying squirrel presence and pseudo-absence points in the Southern Appalachian red spruce-Fraser fir sky islands
Carolina northern flying squirrel presence and pseudo-absence points for eight high elevation North Carolina, Tennesse, and Virginia red spruce-Fraser fir forests. Data includes corresponding habitat variables (distance to spruce-fir forest, northern red oak forest, northern hardwood forest, open areas) and topographic variables (elevation, topographic exposure index, aspect), latitude...
Georectified mosaic of historical aerial photographs of the Colorado River in Palo Verde Valley, Arizona and California, acquired in 1930 Georectified mosaic of historical aerial photographs of the Colorado River in Palo Verde Valley, Arizona and California, acquired in 1930
This product is a georectified and tonally balanced mosaic of aerial photographs collected in 1930 by the U.S. Bureau of Reclamation along a portion of the floodplain of the Colorado River in Palo Verde Valley, Arizona and California. This dataset is a primary resource for the development of a surficial geologic map showing the floodplain and river channel characteristics along the...
Point locations for rare earth element leachate collection and precipitation tanks from ion-adsorption clay deposits in Burma (Myanmar) and China identified from satellite imagery between 2010 and 2025 Point locations for rare earth element leachate collection and precipitation tanks from ion-adsorption clay deposits in Burma (Myanmar) and China identified from satellite imagery between 2010 and 2025
Rare earth elements are critical mineral commodities typically extracted together as a group of 15 elements (lanthanides plus yttrium) from either 1) hard rock ores or 2) ion-adsorption clay deposits. The locations of hard rock mines targeting carbonatite and peralkaline magmatic rare earth deposits are well constrained and typically mined using conventional open-pit or underground...
Sulfur isotopes and geochemistry of sulfate and sulfide minerals in the Mountain Pass Intrusive Suite, 2025 Sulfur isotopes and geochemistry of sulfate and sulfide minerals in the Mountain Pass Intrusive Suite, 2025
Sulfur minerals, including sulfates (barite, celestine) and sulfides (pyrite, galena, chalcopyrite) are common throughout the Mountain Pass carbonatite. Changes in the sulfur isotope chemistry of sulfate and sulfide minerals record changes in temperature and oxygen fugacity in the system from which they precipitate, and early primary sulfate and/or sulfide minerals may record the primary...