Filters: Tags: Sedimentary rocks (X)
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Aerial view west toward Vermilion Cliffs Lodge (lower center of photograph) and about 2,000 feet of Triassic and Jurassic rocks of the Vermilion Cliffs (eastern part of Paria Plateau). Kaibab Formation at lower left of photograph.
View east toward unconformity between overlying Permian Esplanade Sandstone and underlying Pennsylvanian Wescogame Formation, east wall of river mile 17.0.
View upriver toward west wall of Grand Canyon from river mile 272.0. Muav Limestone at river (Lake Mead) level to Pakoon Limestone/Esplanade Sandstone at skyline.
Aerial view east into Squaw Canyon, lower Grand Wash Cliffs. Mississippian and Pennsylvanian strata.
View north and downriver from the top of Dubendorf Rapid, river mile 132.2.
View west toward Dripping Springs of upper Hermit Creek canyon from Hermit Trail, south rim. Pennsylvanian strata (lower right side of photograph), Permian strata, large red cliff (Esplanade Sandstone) to rim (Kaibab Formation).
View southwest and downriver toward Shinumo Sandstone cliffs of Papago Canyon (purple-brown cliffs in canyon above boat, lower right of photograph), and Zuni Point (upper left of photograph) on south rim from river mile 75.0.
View east and downriver toward brown travertine cap rock (spring deposits) over green Bright Angel Shale, east side of river mile 60.8.
View southwest into Parashant Canyon of unclassified dolomites (lower part of canyon), Temple Butte Formation (middle cliffs), and Redwall Limestone (top cliffs).
This U.S. Geological Survey (USGS) data release provides whole rock major, minor, and trace element geochemical data from the fluorine-rich Mount Emmons-Redwell porphyry molybdenum (Climax-type) deposit (Mt. Emmons-Redwell deposit), located approximately 5.6 km (3.5 mi) northwest of Crested Butte, Colorado. The Mt. Emmons-Redwell deposit partly underlies Redwell Basin on the northwest flank of Mount Emmons in the west-central region of the Colorado Mineral Belt. Mineralization of the Mt. Emmons-Redwell deposit occurs at depth as vein, veinlet, stockwork, and fracture-hosted Climax-type mineralization [308 Mt at 0.32% Mo (Galey, 1978; Guarnera and Anderson, 2007)], and is associated with the Mt. Emmons igneous complex....
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: <1GB,
Climax-type deposit,
Colorado,
Colorado Mineral Belt,
Crested Butte,
This dataset is intended to provide seamless, integrated geologic mapping of the U.S. Intermountain West region as a contribution to The National Geologic Map supported by the National Cooperative Geologic Mapping Program of the U.S. Geological Survey. Surficial and bedrock geology are included in this data release as independent datasets at a variable resolution from 1:50,000 to 1:250,000 scale. No original interpretations are presented in this dataset; rather, all interpretive data are assimilated from referenceable publications. Derivative polygon features created for this dataset demonstrate the distribution of SIGMa-GeMS Geologic Provinces derived from the distribution of map units. Initial contributions to...
A mineral resource assessment was performed by the U.S. Geological Survey (USGS) to assess the potential of undiscovered skarn-hosted tungsten resources in the Northern Rocky Mountain region of eastern Idaho and western Montana. This region has seen moderate tungsten trioxide (WO3) production in the past from a variety of mineralization styles including skarn, vein and replacement, and wolframite-quartz veins. The geology of the area is dominated by large plutons of Cretaceous to Tertiary age, emplaced into a belt of sedimentary rock ranging from Mesoproterozoic to Permian age, and affected by tectonism related to the Sevier and later Laramide orogenies. Known tungsten (W) skarn mineral sites are associated with...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Ashton,
Bald Mountain,
Beaverhead County,
Bitterroot Range,
Boise County,
The geology of an area of 660 square miles mostly in the northeastern corner of Tennessee and small adjacent areas in Virginia and North Carolina is the subject of this report. The region lies principally in the Unaka province, with extensions northwestward into the Appalachian Valley and southwestward into the Blue Ridge province. The report combines results of surveys made between 1941 and 1953 by the U. S. Geological Survey, the Tennessee Division of Geology, and the Tennessee Valley Authority, and is published in cooperation with the Tennessee Division of Geology. Northeasternmost Tennessee is a region of widespread mineralization and was formerly important for mineral production. Iron, manganese, and bauxite...
In 2013 the U.S. Geological Survey (USGS) drilled and logged a continuous core located on the northeast flank of the Alcova anticline in the southeastern part of the Wind River Basin, Wyoming to evaluate the source rock potential of the Lower and lowermost Upper Cretaceous marine shales (fig. 1). The well, named the Alcova Reservoir AR–1–13, was spud in the lower part of the Frontier Formation and ended in the upper part of the Cloverly Formation, and recovered core between 40.5 feet (ft) and 623 ft (figs. 1, 2). After coring was completed the USGS recorded geophysical data from the well bore, with digital data collected to a depth of 622 ft. Data include natural gamma, resistivity, conductivity, density, sonic,...
The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States (https://doi.org/10.5066/F7WH2N65) represents a seamless, spatial database of 48 State geologic maps that range from 1:50,000 to 1:1,000,000 scale. A national digital geologic map database is essential in interpreting other datasets that support numerous types of national-scale studies and assessments, such as those that provide geochemistry, remote sensing, or geophysical data. The SGMC is a compilation of the individual U.S. Geological Survey releases of the Preliminary Integrated Geologic Map Databases for the United States. The SGMC geodatabase also contains updated data for seven States and seven entirely new State geologic...
Categories: Data,
Data Release - Revised;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Alabama,
Arizona,
Arkansas,
California,
Colorado,
Aerial view north toward Mount Wodo and red butte of Hermit Formation slope capped by Coconino Sandstone cliff, between Putesoy and Lee Canyons on east side of Cataract Canyon.
View northwest toward Kaibab and Toroweap Formations in upper Snake Gulch of Toothpick Ridge; Toroweap Formation forms lower red slope.
View north toward brown travertine cap rock (spring deposits) over green Bright Angel Shale (Muav Limestone cliffs above shale, upper left), north side of Little Colorado River, about 1 mile upriver from Little Colorado and Colorado River confluence.
View west from Lees Ferry road toward Triassic and Jurassic rocks of Vermilion Cliffs, west of river mile 3.5.
Aerial view northeast toward tilted black Cardenas Basalt sill in the Bass Formation, overlain by ledges and slopes of the Hakatai Shale and cliffs of Shinumo Sandstone, all of which formed an island during Cambrian time. Beach deposits of the Tapeats Sandstone onlap against the island at left edge of photograph, 0.5 miles east of river mile 108.9, north side of the river.
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