Eppinger, Robert G.

About the author

U.S. Geological Survey, Central Region, Rocky Mountain area, Geology discipline
Abandoned mines and quarries, Aeromagnetic surveying, Aluminum, Antimony, Arsenic, Atomic absorption analysis, Atomic emission spectroscopy, Barium, Beryllium, Bismuth, Bouguer anomaly, Cadmium, Calcium, Cerium, Cesium, Chemical analysis, Chromatography, Chromium, Cobalt, Contamination and pollution, Copper, Datasets, Electromagnetic surveying, Europium, Free-air anomaly, Gallium, Geochemical processes, Geochemistry, Geospatial datasets, Holmium, Indium, Industrial pollution, Iron, Lanthanum, Lead, Lithium, Magnesium, Manganese, Maps and atlases, Mass spectroscopy, Mercury, Metallic mineral resources, Mine waste, Molybdenum, Multivariate statistical analysis, Natural resource exploration, Neodymium, Nickel, Niobium, Oxygen content (water), Phosphorus, Potassium, Radiometric dating, Resistivity, Rubidium, Scandium, Selenium, Silver, Sodium, Soil chemistry, Spatial analysis, Strontium, Sulfur, Surface water quality, Tellurium, Thallium, Thorium, Tin, Titanium, Toxic trace element contamination, Transect sampling, Tungsten, Unconsolidated deposits, Uranium, Vanadium, Water chemistry, Water pH, Water temperature, Ytterbium, Yttrium, Zinc, Mine sites, Mineral deposit areas, Copper, Gold, Lead, Molybdenum, Silver, Zinc, DBF, ERDAS Imagine grid format, ESRI Spatial Analyst binary grid format, Geodatabase (Esri), Microsoft Access format, Microsoft Excel format, Portable Document Format, TIFF, File geodatabase (Esri), Shapefile, Tab-delimited text

Geochemical maps of stream sediments in central Colorado, from New Mexico to Wyoming

Data portrayed in this portfolio of landscape geochemical maps serve as a geochemical baseline for the region, indicate element abundances characteristic of various lithologic terranes, and identify gross anthropogenic effects of historical mining

Case study of the environmental signature of a recently abandoned, carbonate-hosted replacement deposit: The Clayton Mine, Idaho

Multi-element geochemical analysis of host rock, ore, mine waste, flotation-mill tailings, slag, stream sediments, creek and adit waters, and leachates of mine waste and mill tailings.

Geochemical data for stream-sediment, surface-water, rock, and vegetation samples from Red Mountain (Dry Creek), an unmined volcanogenic massive sulfide deposit in the Bonnifield district, Alaska Range, east-central Alaska

Geochemical data for stream sediment, surface-water, rock, precipitate, and vegetation samples from Red Mountain

Selected geochemical data for modeling near-surface processes in mineral systems

Data on a variety of mineral deposit types that have variable environmental effects when exposed at the ground surface by mining or natural processes.

Descriptive and geoenvironmental model for Co-Cu-Au deposits in metasedimentary rocks

A compilation of global data on cobalt-copper-gold deposits hosted by metasedimentary rocks refines previous descriptive models for their occurrence and provides important information for mineral resource assessments and exploration programs.

Geochemical data for samples collected in 2007 near the concealed Pebble porphyry Cu-Au-Mo deposit, southwest Alaska

Analytical results for geochemical samples collected in 2007 from the Pebble deposit and surrounding environs

Geochemical data for samples collected in 2008 near the concealed Pebble porphyry Cu-Au-Mo deposit, southwest Alaska

Chemical analysis of surface samples taken over a well known but concealed deposit to understand metal migration into the surface materials and to assess the power of surface sampling for detecting concealed deposits of this type.

Geophysical and geochemical data from the area of the Pebble Cu-Au-Mo porphyry deposit, southwestern Alaska: Contributions to assessment techniques for concealed mineral resources

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.