Chemical composition of sediments and soils are of interest because of the potential for human and wildlife health impacts from high metal contents due to over 100 years of mining activity.

Detailed chemical and isotopic analysis of host and associated rocks within an area that is currently the largest producer of gold in the US. Part of a study of the hydrothermal activity leading to the formation of these gold deposits.

These samples and their geochemistry reflect the variation of base-metal sulfide and uranium oxide mineralization within ore zones of the Canyon deposit. The ore mineralogy, and thus rock chemistry, can vary over short intervals (centimeters). Data are provided in Microsoft Excel and CSV formats.

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.

Density and magnetic susceptibility measurements to assist in interpretation of gravity and magnetic anomaly data

Results from sediment cores collected during 1997-1999 oxbow lakes and beaver ponds to assess impact of historic mining and exposed mineral deposits on the quality of the water and the aquatic and riparian habitats.

Geochemical and mineralogical analysis of uranium-bearing sandstone in order to help understand mineral deposits of this type.

Scanned drill core logs and explanatory material provided in PDF format. Hand-written notes provided in CSV format. Locations provided in shapefile format.

Scanned drill core logs and explanatory material provided in PDF format. Hand-written notes provided in CSV format. Locations provided in shapefile format.

Images of graphic drill core logs showing associated drill core information, explanation for the lithology and structure sections of the logs, locations of the drill holes, and tabular data compiled from handwritten notes on the logs. Data are provided in TIFF, shapefile, and CSV formats.

Images of graphic drill core logs showing associated drill core information, an image of the explanation for the lithology and structure sections of the logs, the locations of the drill holes, and tabular data compiled from handwritten drill core logs. Data are provided in TIFF and CSV formats.

Historical context of minerals exploration in this area including the locations of drill cores and lithologic, structural, grain size, and chromite, sulfide, copper, and nickel mineralization. Data are provided in TIFF images, with originally hand written information provided in CSV format, and location information as shapefiles.

Lithologic and textural information for hand samples and drill core from this rock body, to study copper-nickel-platinum-group element mineralization that occurs at this locality. Data are provided in JPG and CR2 formats.

Photomicrographs, lithologic and textural information for drill core from this area to study contact-type mineralization that occurs near the lower contact (Basal series and hornfels rocks) of the complex. Data are provided as JPG and CR2 images.

U-Pb ages of zircon from borehole samples to determine a maximum depositional age of the geologic units and provenance of the zircon in the samples. Data are provided in CSV format.

Geochemical and radionuclide analyses of surface samples and cores taken near the outflow of this old uranium mine.

Stream water, groundwater, and ferricrete samples were collected and analyzed to constrain the location of a possible concealed mineral occurrence. Data are provided in CSV and shapefile formats.

Whole-rock major, minor, and trace element geochemistry of rock samples collected from diamond drill holes that intersect the textural discontinuity at the top of the Reef Package from the underground working of the Stillwater Mine. Data are provide in CSV format.

Mineralogical data on samples from the surface and from drill cores, with geological observations help to understand the hydrology and effects of geology on acid-rock drainage in a mineralized alpine watershed.

Data from more than 660 gravity stations, 100 line-km of truck-towed magnetometer traverses, and 260 physical-property sites in this area.

Results of magnetic susceptibility (MS) measurements and magnetic mineralogy of sediments sampled in three cores from the south basin of Great Salt Lake

Mathematical modeling, coupled with new observations of magnetic susceptibility, yield better estimates of the underground configuration of granite plutons.

One hundred years of historical mining has resulted in substantial ongoing input of cadmium, lead, and zinc into the environment. This surficial-soil sampling and coring study provides information needed to support remediation efforts.

Sample locations, location descriptions, lithology, mineralogy, and geochronological relationships of drill holes that penetrated the buried Precambrian basement in this area. Detailed well log and cutting descriptions are included if available. Data are provided in Microsoft Access and tab-delimited text formats.

U-Pb isotopic data and associated ages of zircon grains from 27 sedimentary samples and one volcanic ash sample from this area. Data are provided in CSV format.

X-ray diffraction data on sediment core samples collected in this area to inform aquifer sediment composition, mineralogical composition of operationally defined size fractions, and geochemical modeling. Data are provided in CSV format.