Found 21 datasets matching "mine workings".
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Two synoptic sampling campaigns were conducted near Breckenridge, Colorado, to quantify metal loading to Illinois Gulch, a tributary of the Blue River. The first campaign, conducted in August...
Search relevance: 125.35 | Views last month: 0 -
Analytic-element groundwater-flow model of the Captain Jack Superfund Site, Boulder County, Colorado
The U.S. Geological Survey (USGS) used an analytic-element method (AEM) modeling approach to quantitatively understand groundwater dynamics at the Captain Jack Superfund Site, located in Boulder...
Search relevance: 101.76 | Views last month: 0 -
Sediment hosted gold deposits in Nevada were first mined in the 1960s from open pit mines with large tonnage and low grade resources. Since that time, continuing exploration and discovery have...
Search relevance: 93.13 | Views last month: 3 -
The Captain Jack Superfund site near Ward, Colorado hosts extensive interconnected underground mine workings, which drain via the Big Five Adit. Drainage from the adit has historically been acidic...
Search relevance: 85.89 | Views last month: 0 -
The American Tunnel, the Black Hawk mine, the Gold King mine, the Mogul mine, and the Red and Bonita mine are located in the Cement Creek watershed, tributary to the upper Animas River near...
Search relevance: 73.47 | Views last month: 0 -
Acid mine drainage (AMD) can cause ecological harm throughout the state of Colorado, including in the Upper Animas River watershed near Silverton. In the Upper Animas River watershed, a technique...
Search relevance: 66.75 | Views last month: 0 -
Stable isotope compositions (the ratios deuterium/hydrogen, oxygen-18/oxygen-16, and sulfur-34/sulfur-32) are reported for alunite, jarosite, kaolinite, silica, cinnabar, marcasite, and native...
Search relevance: 66.60 | Views last month: 1 -
This child item of the data release contains groundwater-level elevation and water-quality data, both collected by contractors to U.S. Environmental Protection Agency (EPA) and later furnished to...
Search relevance: 61.40 | Views last month: 0 -
This article uses a data set of geochemical tracers collected from the Captain Jack Mill Superfund Site in Colorado. The journal article is the result of a collaboration between U.S. EPA and the...
Search relevance: 61.20 | Views last month: 0 -
The study results include concentrations of Rare Earth Elements and stable isotope compositions of water from an acid mine drainage-affected watershed in southwest Colorado, the Upper Animas River...
Search relevance: 56.83 | Views last month: 0 -
Samples of vein-type magmatic-steam alunite were collected over several field seasons from five mines and prospects (L&N, Mt. Edna, Christmas, upper Mineral Products, and Close In) in the Alunite...
Search relevance: 56.11 | Views last month: 0 -
Twenty-five ore and gangue mineral separates from the Miocene-age Goldfield and Tonopah epithermal Au-Ag deposits in southwestern Nevada were analyzed to determine the helium, neon, and argon (He,...
Search relevance: 56.03 | Views last month: 0 -
This data release provides descriptions of more than 100 mining districts, mines, and mineral occurrences (deposits and prospects) within the United States that are reported to contain enrichments...
Search relevance: 42.92 | Views last month: 3 -
This dataset includes photographic images of thin sections created from hand samples and drill core from the Stillwater Complex, Montana, along with a shapefile representing the locations of the...
Search relevance: 42.67 | Views last month: 9 -
This data release provides descriptions of more than 60 mineral regions, mines, and mineral deposits within the United States and its territories that are reported to contain enrichments of cobalt...
Search relevance: 42.00 | Views last month: 10 -
Version 4.0 of this data release provides descriptions of more than 200 mineral districts, mines, and mineral occurrences (deposits, prospects, and showings) within the United States that are...
Search relevance: 40.24 | Views last month: 104 -
This U.S. Geological Survey (USGS) data release provides the descriptions of the only U.S. sites-including mining districts, mineral occurrences, and mine features-that have reported production...
Search relevance: 34.92 | Views last month: 1 -
This data release provides data for the single site in the United States (U.S.) that has public record of germanium (Ge) production. Germanium, which is currently classified as a critical mineral...
Search relevance: 34.64 | Views last month: 3 -
This data release provides descriptions of more than 120 mineral regions, mines, and mineral deposits within the United States that are reported to contain enrichments of tin (Sn). This data...
Search relevance: 34.07 | Views last month: 3 -
This U.S. Geological Survey (USGS) data release provides the descriptions of 10 U.S. sites that include mineral regions, mineral occurrences, and mine features that contain enrichments of...
Search relevance: 32.01 | Views last month: 7
