Fey, David L.

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, Boron, Bouguer anomaly, Bulk density, Cadmium, Calcium, Carbon, Cerium, Cesium, Chemical analysis, Chlorine, Chromatography, Chromium, Cobalt, Copper, Datasets, Dissolved metals, Drilling and coring, Dysprosium, Ecology, Electromagnetic surveying, Erbium, Erosion, Europium, Fluorine, Free-air anomaly, Gadolinium, Gallium, Geochemistry, Geologic history, Geology, Geospatial datasets, Holmium, Igneous rocks, Indium, Industrial pollution, Iron, Lanthanum, Lead, Lithium, Lutetium, Macroinvertebrates, Magnesium, Magnetic susceptibility, Manganese, Mass spectroscopy, Mathematical modeling, Mercury, Metallic mineral resources, Mine drainage, Mineralogy, Molybdenum, Natural resource exploration, Neodymium, Neutron activation analysis, Nickel, Niobium, Nitrogen, Oxygen content (water), Phosphorus, Potassium, Praseodymium, Radiometric dating, Rare earth elements, Resistivity, Rocks and deposits, Rubidium, Salinity, Samarium, Sand deposits, Scandium, Sedimentation, Selenium, Silicon, Silver, Sodium, Soil chemistry, Spatial analysis, Statistical analysis, Streamflow, Strontium, Sulfur, Tantalum, Tellurium, Terbium, Thallium, Thorium, Thulium, Tin, Titanium, Transect sampling, Tungsten, Unconsolidated deposits, Uranium, Vanadium, Volcanic rocks, Water chemistry, Water pH, Water sampling, Water temperature, X-ray diffraction, X-ray fluorescence, Ytterbium, Yttrium, Zinc, Zirconium, Mine sites, Mineral deposit areas, Reservoirs, Sand, Copper, Gold, Molybdenum, ERDAS Imagine grid format, ESRI Spatial Analyst binary grid format, HTML table, KML, Microsoft Access format, Microsoft Excel format, OGC WFS, OGC WMS, Portable Document Format, TIFF, Comma-delimited text, File geodatabase (ESRI), Shapefile, Tab-delimited text

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

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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.

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Geochemical data for core and bottom-sediment samples collected in 2007 from Grand Lake o' the Cherokees, northeast Oklahoma

In this area of historical lead-zinc mining activity, studies such as this help to assess the possibility of human exposure to cadmium and lead through eating fish.

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Deposit model for heavy-mineral sands in coastal environments

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

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Geospatial database for regional environmental assessment of central Colorado

Study focusing on the effects of historical mining on Forest Service lands in this area.

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A deposit model for magmatic iron-titanium-oxide deposits related to Proterozoic massif anorthosite plutonic suites

This descriptive model for magmatic iron-titanium-oxide (Fe-Ti-oxide) deposits hosted by Proterozoic age massif-type anorthosite and related rock types presents their geological, mineralogical, geochemical, and geoenvironmental attributes. Although these

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First steps of integrated spatial modeling of titanium, zirconium, and rare earth element resources within the Coastal Plain sediments of the southeastern United States

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.

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Geophysical, geochemical, mineralogical, and enivronmental data for rock samples collected in a mineralized volcanic environment, upper Animas River watershed, Colorado

Data for 90 rock samples collected from 2001 to 2007 for geophysical, geochemical, mineralogical, and environmental rock properties of acid neutralizing capacity and net acid production.

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Descriptive models for epithermal gold-silver deposits: Chapter Q in <Mineral deposit models for resource assessment

Epithermal gold-silver deposits are vein, stockwork, disseminated, and replacement deposits that are mined primarily for their gold and silver contents; some deposits also contain substantial resources of lead, zinc, copper, and (or) mercury. These deposi

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Chemical analysis results for mercury and trace elements in vegetation, water, and organic-rich sediments, South Florida

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Net acid production, acid neutralizing capacity, and associated geophysical, mineralogical, and geochemical characteristics of Animas River watershed rocks near Silverton, Colorado

Geochemical analysis of rock samples focusing on characteristics relevant to mine cleanup discussions

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Geochemical and mineralogical data for soils of the conterminous United States

Systematic geochemical and mineralogical survey of soil horizons analyzed using a consistent set of methods, sample spacing 1 per 1,600 sq km.

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Geochemical and mineralogical data for soils of the conterminous United States

Systematic geochemical and mineralogical survey of soil horizons analyzed using a consistent set of methods, sample spacing 1 per 1,600 sq km.

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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.

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