John, David A.

About the author

U.S. Geological Survey, Western Region, Southwest area, Geology discipline
Quaternary, Tertiary, Aluminum, Antimony, Arsenic, Atomic emission spectroscopy, Barium, Bedrock geologic units, Beryllium, Boron, Business and economics, Calcium, Cerium, Cesium, Chemical analysis, Chromium, Coal resources, Cobalt, Copper, Dysprosium, Economic geology, Erbium, Europium, Faulting (geologic), Fluorine, Gadolinium, Gallium, Geochemical processes, Geochemistry, Geochronology, Geologic history, Geologic maps, Geologic structure, Geospatial datasets, Geothermal resources, Gold, Hafnium, Holmium, Igneous rocks, Iron, Isotopic analysis, Laboratories, Lanthanide series elements, Lanthanum, Lead, Lutetium, Magnesium, Manganese, Mass spectroscopy, Mathematical simulation, Metallic mineral resources, Microscopy, Mine drainage, Mine waste, Mineral deposits, Mineral resources, Mineralogy, Molybdenum, Natural resource assessment, Natural resource exploration, Neodymium, Nickel, Niobium, Particle-beam spectroscopy, Petrography, Phosphorus, Potassium, Potassium-argon analysis, Praseodymium, Promethium, Radiometric dating, Rare earth elements, Resource supply and demand, Rhenium, Rubidium, Samarium, Scandium, Silver, Sodium, Strontium, Structural geology, Study areas, Tantalum, Terbium, Thorium, Thulium, Tin, Titanium, Tungsten, Uranium, Uranium-lead analysis, Vanadium, Volcanic activity, Volcanic rocks, X-ray fluorescence, Ytterbium, Yttrium, Zinc, Zirconium, Mine sites, Mineral deposit areas, Alkaline basalt, Andesite, Basalt, Dacite, Latite, Quartz monzonite, Rhyodacite, Rhyolite, Trachyandesite, Trachyte, Tuff, Volcanic rock, Geodatabase (ESRI), KML, Microsoft Excel format, Portable Document Format, Comma-delimited text, File geodatabase (ESRI), Shapefile, Rare earths, Rhenium

Geologic map of the Bodie Hills, California and Nevada

Spatial geologic map with rock type, vents, arcs, landslides, etc. provided in an ESRI geodatabase and KMZ format for Google Earth viewing. Mapsheet with accompanying descriptive pamphlet is provided as a PDF. Petrographic rock summary is also included.

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Rhenium: a rare metal critical in modern transportation

Explains how and where rhenium resources form and concentrate and how they are used and interact with the environment to affect human and ecosystem health. Discusses supply and demand trends and where undiscovered sources of rhenium might be found.

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Rhenium

Rhenium is a rare metal that has an extremely high melting point and a heat-stable crystalline structure. It is used in high-temperature superalloys, to make turbine blades for jet aircraft engines and is a catalyst for petroleum refining.

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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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Geochemical database for igneous rocks of the ancestral Cascades Arc--southern segment, California and Nevada

Compilation of all available chemical data (more than 2,000 samples) for igneous rocks that constitute the southern segment of the ancestral Cascades magmatic arc.

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Petrographic and geochemical data for Cenozoic volcanic rocks of the Bodie Hills, California and Nevada

The purpose of this report is to present available petrographic and geochemical data for unmineralized rock samples, principally volcanic rocks and to make those data available to ongoing petrogenetic investigations of these rocks.

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Gold-silver mining districts, alteration zones, and paleolandforms in the Miocene Bodie Hills Volcanic Field, California and Nevada

<div>The Bodie Hills is a ~40 by ~30 kilometer volcanic field that straddles the California-Nevada state boundary between Mono Lake and the East Walker River. Three precious metal mining districts and nine alteration zones are delineated in Tertiary-Quate

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Data to accompany U.S. Geological Survey Data Series 1099: Petrographic, geochemical and geochronologic data for Cenozoic volcanic rocks of the Tonopah, Divide, and Goldfield Mining Districts, Nevada

Geochemical, petrographic, and geochronologic data for samples, principally those of unmineralized Tertiary volcanic rocks, from the Tonopah, Divide, and Goldfield mining districts of west-central Nevada.

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Petrology of volcanic rocks associated with silver-gold (Ag-Au) epithermal deposits in the Tonopah, Divide, and Goldfield Mining Districts, Nevada

Miocene calc-alkaline volcanic rocks, part of the southern segment of the ancestral Cascades magmatic arc, are spatially, temporally, and likely genetically associated with precious metal epithermal deposits in the Tonopah, Divide, and Goldfield Districts

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Geochronology of Cenozoic rocks in the Bodie Hills, California and Nevada

Presents data for mineral deposits and unaltered and hydrothermally altered volcanic rocks. Data presented were acquired in three USGS labs by three different geochronologists. Analytical methods and data derived from each lab are presented separately.

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Geology and mineral resources of the Sheldon-Hart Mountain National Wildlife Refuge Complex (Oregon and Nevada), the Southeastern Oregon and North-Central Nevada, and the Southern Idaho and Northern Nevada (and Utah) Sagebrush Focal Areas

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Geology and mineral resources of the North-Central Idaho Sagebrush Focal Area: Chapter C in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

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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.

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