Filters: Tags: igneous rocks (X) > Types: Map Service (X)
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View south toward the eroding consolidated pyroclastic deposits on east side of Whitmore volcano, Whitmore Wash, lower Whitmore Canyon.
View east across Whitmore Canyon toward Paws Pocket (red rocks area) and Mount Emma volcano (skyline left) from Whitmore Point.
View of sill and sample site of southern Two Hundred and Twentyseven Mile intrusive in Wescogame Formation (photograph WI20).
View north toward a basalt dike (center of photograph) in Esplanade Sandstone, south of Hades Knoll, east side of Tuckup Canyon.
Aerial view north toward new Whitmore Canyon (lower left of photograph) and old Whitmore Canyon (filled with black Pleistocene basalt).
Radial cooling joints in basalt flow, northeast wall of river mile 184.0.
View southwest from Esplanade Sandstone point, just south of river mile 179.0, toward north end of basalt flow of lower Prospect Canyon, east side of Prospect Canyon.
View north and upriver toward Pleistocene basalt-filled Whitmore Canyon from new Whitmore Canyon delta, river mile 188.5. Redwall Limestone at skyline, Bright Angel Shale at river level.
This U.S. Geological Survey (USGS) data release provides whole rock major, minor, and trace element geochemical data, mineral chemistry, and monazite and xenotime geochronology for Proterozoic rocks in the Needle Mountains of southwestern Colorado and for Proterozoic rocks sampled from drill cores from Colorado, North Dakota, Nevada, Wyoming, Montana, and Nebraska. Samples from the Needle Mountains were collected in order to constrain the polyphase tectonic evolution of the area. Additionally, multi-scale compositional mapping, petrologic modeling and in-situ geochronology constrain the pressure-temperature-time paths from basement gneisses and quartzites. Drill core samples are part of a larger characterization...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Colorado,
Geochemistry,
Montana,
Nebraska,
Nevada,
There is a growing demand for commodities (elements, compounds, minerals) used in today's advanced technologies. Critical minerals are usually found in ore deposits that are deemed vital to economic and national security. The National Geochemical Database on Ore Deposits: Legacy data (NGDOD) contains chemistry and geologic information for nearly 30,000 historic ore and ore-related rock samples from mineral deposits and mining districts in the United States. Geochemical data sets from various mineral deposits were submitted by geologists of the "Systems Approach to Critical Minerals Inventory, Research, and Assessment" (SACM) within the U.S. Geological Survey Mineral Resource Program (MRP). The data sets represent...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Alaska,
Arizona,
California,
Colorado,
Economic Geology,
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