Data

This data release is a compilation of information from historically mined sites in the United States that are confirmed or inferred to have generated mafic to ultramafic mine waste. Waste rock and milled tailings from the mining of mafic to ultramafic ores are prospective surface-based feedstocks for CO₂ mineralization given their high specific surface area and CO₂-reactive mineralogy

This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over much of the Upper Peninsula of Michigan and nearby parts of northern Wisconsin. The airborne survey was funded by the Earth Mapping Resources Initiative (Earth MRI). The survey was designed by the USGS in collaboration with the Michigan Geological Survey and contracted...

A novel approach for critical mineral recovery from complex aqueous sources is a bioelectrochemical system (BES). In a BES, reductive precipitation of a critical mineral is catalyzed by the bacterium Shewanella oneidensis MR-1 using an electrode as the sole electron source through direct bacterial extracellular electron transport in laboratory experiments. In this study, the abiotic and...

Hydrologic and geophysical data were collected in 2023-2025 near the Perigo Mine in Gilpin County, Colorado. Two boreholes (P9 and P10) were drilled in the fall of 2023. The drill site is located on a forested mountain hillslope near abandoned mining infrastructure at an elevation of about 2,970 meters. The boreholes were continuously cored using a wireline HQ-sized coring system through

Coal and its combustion products (ash) are of interest as potential unconventional sources of critical minerals, particularly rare earth elements (REE). Vietnam has large coal reserves and employs coal-fired power plants to generate more electricity than any other energy source. Because there are limited data available on the REE content of coal and coal combustion products from Vietnam...

This U.S. Geological Survey (USGS) data release accompanies upcoming publication 'High Spatial Resolution Re-Os Dating of Paleozoic Organic-Rich Black Shales by LA-ICP-MS/MS' to be published in the Chemical Geology. The data set reports the Re-Os isotopic composition, Re-Os age and select trace element contents of the mineral molybdenite associated with ore deposits in the United States...

This data release provides digital flight line data for a high-resolution airborne magnetic survey over the Cuyuna Iron Range in central Minnesota. The airborne survey was funded by the Earth Mapping Resources Initiative (Earth MRI). The survey was designed by the USGS in collaboration with the Minnesota Geological Survey, the University of Minnesota Natural Resources Research Institute...

Sediment hosted zinc (Zn) and lead (Pb) deposits are the most significant sources of zinc and lead ore globally. Zinc is required to create corrosion-resistant iron and steel products among other applications, and lead is an important element in car batteries and other industrial products. These deposits can also contain significant quantities of silver (Ag), which is commonly used in...

Radiometric data (gamma ray spectrometry) were collected via a small uncrewed airborne system (sUAS) in June 2024 to characterize four distinct mine waste features in Southwestern New Mexico. Walking surveys with a handheld meter were also conducted over parts of the survey areas to provide ground truth checks for the airborne data. Survey sites and their respective areas covered include...

This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over the southern alkaline igneous belt in south-central New Mexico. The airborne survey was funded by the Earth Mapping Resources Initiative (Earth MRI). The survey was designed by the United States Geological Survey (USGS) in collaboration with the New Mexico Bureau of...

This data release presents whole rock geochemical data and powder X-ray diffraction (XRD) mineralogic data from a suite of mafic and ultramafic geologic units in the United States. One-hundred-twelve samples were analyzed from core and outcrop settings at thirty sites, including from the contiguous United States, Alaska, and Hawaii. Sample localities include some of the large mafic and...

This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over the Adirondack Lowlands in Northwest New York. The airborne survey was funded by the Earth Mapping Resources Initiative (Earth MRI). The survey was designed by the USGS in collaboration with the New York State Geological Survey, and contracted by the USGS. The survey...