Data

This data release is an inversion an airborne geophysical data survey collected from July to November 2014 for the State of Alaska Department of Natural Resources by CGG Dighem Survey. The inversion of the electromagnetic data to provide electrical resistivity and magnetic susceptibility models as a function of depth was carried in 2017 using EM1DFM program from University of British...

The Mineral Hill alkaline complex (MHAC), located on the northwest side of the Black Hills uplift near the Wyoming–South Dakota border, is composed of several alkaline igneous units emplaced into Precambrian metasedimentary rocks and Paleozoic strata. The purpose of this study was to determine whether MHAC garnets are a major host of rare earth elements (REEs) and whether REE patterns...

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

This dataset consists of 122 magnetotelluric (MT) soundings collected in 2016 in the northern Harrat Rahat, located near the holy city of Al-Madinah Al-Munawarah in Saudi Arabia. These data were collected as part of a joint project between the U.S. Geological Survey and the Saudi Geological Survey examining the volcanic hazard associated with the harrat. Imaging the 3-D electrical...

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...

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 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...

Ar/Ar data are for 1 sample that constrains the cooling age of biotite. The geochronology provides time constraints for the age of gold mineralization in the Tuvatu Gold Mine in Fiji. Samples were provided by Thomas Monecke (Colorado School of Mines). Samples were analyzed in January 2024.