Gravity, magnetic, and radiometric data obtained in airborne surveys conducted in 2012 with a flight line spacing of 200m and nominal height above ground 125m. Data are provided in GXF grid, GeoTiff, and CSV formats.

Airborne geophysical surveys were conducted in this area in 2015 with a nominal survey height above ground of 200 meters and flight line spacing 250 meters. Includes magnetic and radiometric (gamma spectrometry) data from those surveys. Data are provided in Geotiff and CSV formats.

We present numeric grids containing estimates of the thickness of unconsolidated sediments and depth to the pre-Cenozoic<br>basement for the western United States. Values for these grids were combined and integrated from previous studies or derived<br>dir

Flight line data from airborne surveys conducted in 2017, provided in comma-separated values (csv format). Three areas were flown along a draped surface with a nominal survey height above ground of 120 meters. The flight line spacing for these areas was 200 to 400 m for Area 123, in southwestern Oklahoma; 1000 m for Area 4, in northwestern Oklahoma, and 800 m for Area 5, in north-central Oklahoma.

Density and magnetic susceptibility measurements made on rocks and outcrops in this area. Data are provided in CSV format.

Digital flight line data for a high-resolution airborne magnetic and radiometric survey over Charleston, South Carolina and the surrounding region. Data packages in CSV format, TIFF images provided as well.

Gravity data were collected in 2016 and 2017 to assist in mapping subsurface geology in this area, where there are numerous iron-oxide apatite deposits which contain rare-earth elements. Data are provided in CSV format.

Critical mineral resources titanium, zirconium, and rare earth elements occur in placer deposits over vast parts of the U.S. Atlantic Coastal Plain. Key questions regarding provenance, pathways of minerals to deposit sites, and relations to geologic featu

Digital flight line data for a high-resolution airborne magnetic and radiometric survey with goals of better understanding placer deposits containing critical mineral resources titanium, zirconium, and rare earth elements and of imaging the crystalline basement partly buried beneath Atlantic Coastal Plain sediments. Data are provided in CSV (magnetic) and netCDF (radiometric) formats as well as GeoTIFF images.

Digital flight line data for a high-resolution airborne magnetic and radiometric survey over this area to better understanding volcanogenic massive sulfide mineral deposits, sediment hosted manganese deposits, and their surrounding geologic framework. Data are provided in CSV and GeoTiff formats.

Digital flight line data for a high-resolution airborne magnetic and radiometric survey over this area. Data are provided in CSV and GeoTIFF formats.

Radiometric (gamma spectrometry) measurements made during walking surveys in this area. Data were collected over and in the vicinity of a radiometric thorium anomaly identified via an airborne survey. Data are provided in CSV format.

Sedimentary deposits of dense minerals that accumulate with sand, silt, and clay in coastal environments, locally forming economic concentrations of the heavy miner­als.

Digitized shapefiles representing surface geologic features depicted in Matthew S. Walton's unpublished 1960 geologic map of this area. Includes geologic units representing Precambrian basement rock, geologic structures, diabase dikes, mine shaft locations, and water bodies. Data are provided in shapefile and GeoTiff formats. Notes from the original map are provided in PDF format.

A geochemical database for a regional subset of IOA ore and mine waste products, created because the apatite in these mineral deposits may also host rare earth elements. Data are provided in CSV format.

Aeromagnetic data are used to better understand the geology and mineral resources near the Late Cretaceous Pebble porphyry Cu-Au-Mo deposit in southwestern Alaska. The reduced-to-pole (RTP) transformation of regional-scale aeromagnetic data shows that the

Ancient and modern coastal deposits of heavy mineral sands (HMS) are the principal source of several heavy industrial minerals, with mining and processing operations on every continent except Antarctica. For example, HMS deposits are the main source of ti

This report draws on previous syntheses and basic research studies of sedimentary exhalative (sedex) deposits to arrive at the defining criteria, both descriptive and genetic, for sedex-type deposits. Studies of the tectonic, sedimentary, and fluid evolut

This report summarizes the assembly of pertinent data, determination of its limits, analysis of its properties, and the relations among the different data types in preparation for future modeling.

Geographic areas within the US where deposits of certain critical mineral resources might be found. With state agencies and other organizations, USGS intends to conduct studies that will help locate critical mineral resources within these areas.

Uninterpreted geophysical measurements and geochemical and mineralogical analytical data from samples collected during the summer field seasons from 2007 to 2010. Data are available in a single Geographic Information System (GIS) database.

Compilation of airborne geophysical surveys (magnetic, radiometric, and electromagnetic) with links, for each survey to the data, metadata, and preview images. Includes a measure of quality indicating which surveys are likely most useful for investigations of subsurface mineral deposits. Data are provided in Esri file geodatabase, shapefile, and CSV formats.

The Earth Mapping Resources Initiative (Earth MRI) is conducted in phases to identify areas for acquiring new geologic framework data to identify potential domestic resources of the 35 mineral materials designated as critical minerals for the United State

Locations of focus areas to be used for planning and collection of geophysical, geological, and topographic (lidar) data pertaining to the study of rare earth element resources in the US.