Mount Wood

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Stillwater Complex Rock Outcrop Database

Polygons that describe areas of rock outcrop in the area of the Stillwater Complex, Montana from published reports and field mapping sheets. Includes both legacy data and outcrops from recent field mapping. This dataset contains overlapping polygons, as some areas had mapping from different sources that overlapped the same locations. Data are provided in shapefile format.

Airborne electromagnetic and magnetic survey data, Stillwater Complex, Montana, May 2000 (ver. 2.0, June 2020)

Data from a helicopter-borne electromagnetic and magnetic survey flown over this area area in 2000. Nominal elevation of the sensor was 60 meters. Survey coverage comprises 1,914 line kilometers. Data are provided in CSV format.

Stillwater Complex, Montana: Logs of core drilled by Cyprus in the Chrome Lake area, 1971 to 1980

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.

Thin section images of drill core from the Chrome Lake area in the Stillwater Complex, Montana

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.

Stillwater Complex, Montana: Logs of core drilled by Anaconda in the Nye Basin area, 1968 to 1982

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.

Thin section images of drill core and hand samples from the Stillwater Mine area, Stillwater Complex, Montana

Photographs and micrographs of hand samples and drill core from this area to study platinum-group element reef-type mineralization that occurs in the J-M Reef of the Stillwater Complex. Data are provided in JPEG and CR2 formats.

Stillwater Complex, Montana: Logs of core drilled by Anaconda in the Benbow area, 1969 to 1973

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

Stillwater Complex Strike and Dip Database

Geologic structure strike and dip information from this area from pre-existing digital strike and dip information and from digitizing strike and dip locations from georeferenced map images. Data are provided in shapefile format.

Principal facts of gravity data from the Stillwater Complex, Montana, 2013-2014 and 2020

Gravity measurements were collected during 2013, 2014, 2020 at 168 sites on and around the Stillwater layered mafic complex. Data are provided in CSV and shapefile formats.

Geochemistry of rocks and rock fabric data near the hanging wall contact to the Reef Package, Stillwater Complex, Montana, USA

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.

A geologic and mineral exploration spatial database for the Stillwater Complex, Montana

<p>The Stillwater Complex is a Neoarchean, ultramafic to mafic layered intrusion exposed in the Beartooth Mountains in south-central Montana. This igneous intrusion contains magmatic mineralization that is variably enriched in strategic and critical commo