Andersen, Allen K.

About the author

ORCID: 0000-0002-6865-2561
Aeroradiometric surveying, Aluminum, Antimony, Arsenic, Atomic absorption analysis, Atomic emission spectroscopy, Barium, Bedrock geologic units, Beryllium, Bismuth, Boron, Cadmium, Calcium, Carbon, Cerium, Cesium, Chemical analysis, Chlorine, Chromium, Cobalt, Copper, Core analysis, Dysprosium, Economic geology, Erbium, Europium, Fluorine, Gadolinium, Gallium, Geochemistry, Geochronology, Geospatial datasets, Germanium, Gold, Hafnium, Holmium, Image collections, Indium, Iridium, Iron, Lanthanide series elements, Lanthanum, Lead, Lithium, Lutetium, Magnesium, Manganese, Mass spectroscopy, Metallic mineral resources, Mineral deposits, Mineral resources, Mining and quarrying, Molybdenum, Natural resource assessment, Natural resource exploration, Neodymium, Neutron activation analysis, Nickel, Niobium, Osmium, Palladium, Particle-beam spectroscopy, Petrography, Phosphorus, Photography, Platinum, Platinum-group elements, Potassium, Praseodymium, Promethium, Rare earth elements, Rhodium, Rubidium, Ruthenium, Samarium, Scandium, Selenium, Silicon, Silver, Strontium, Study areas, Sulfur, Tantalum, Tellurium, Terbium, Thallium, Thorium, Thulium, Tin, Titanium, Tungsten, Uranium, Vanadium, X-ray fluorescence, Ytterbium, Yttrium, Zinc, Zirconium, Mine sites, Mineral deposit areas, Peralkaline granite, Peridotite, Pyroxenite, JPEG, Microsoft Excel format, Portable Document Format, Comma-delimited text, File geodatabase (Esri), Shapefile, Platinum-group metals, Rare earths, Tungsten

Lithogeochemistry of selected surface and drill core samples from the Chrome and Iron Mountain areas of the Stillwater Complex, Montana

Whole rock geochemical analysis of sulfide- and chromite-bearing samples in this area, with specific interest in PGE, cobalt, and gold concentrations. Data are provided in CSV format.

TIMA-X Bright Phase Analysis of Platinum-Group Minerals in Selected Samples from the Chrome and Iron Mountain areas of the Stillwater Complex, Montana

Bright phase and energy-dispersive spectroscopic analyses were performed to evaluate platinum-group element and mineral distribution in a variety of rock types from the lower stratigraphy of the Stillwater Complex in Montana. Data are provided in CSV format, supporting analytical data are provided as PDF reports and TIFF images.

Lithogeochemistry and images of selected drill core samples from the Mineral Hill alkaline complex, Wyoming

Geochemical analysis, photographs and micrographs of rock samples and drill core materials from this area. Data are provided in CSV, images in JPEG format.

Whole-rock geochemical data for the Bear Lodge alkaline complex, Wyoming: 2009 - 2013

Geochemical analysis of alkaline igneous rocks, carbonatites, and weathered and oxidized samples in and near a rare-earth element deposit. Data are provided in Microsoft Excel format.

GIS and data tables for focus areas for potential domestic nonfuel sources of rare earth elements

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.

Focus areas for data acquisition for potential domestic resources of 13 critical minerals in the conterminous United States and Puerto Rico—Antimony, barite, beryllium, chromium, fluorspar, hafnium, helium, magnesium, manganese, potash, uranium, vanadiu

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

Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho

Resource assessment and supporting data including permissive tracts, mineral sites in the study area, geologic units, geologic maps, stream sediment geochemistry, whole rock chemistry, airborne radiometric data, and lower frequency content EMAG2 data. Data are provided in Esri file geodatabase, shapefile, and CSV formats.