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Filters: Tags: Metamorphic Rocks (X) > Types: OGC WMS Service (X)

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Aerial view northwest toward Horn Creek Rapids, river mile 90.9, showing numerous pegmatite and granite dikes in black Vishnu Schist. Inner canyon is 1,300 feet deep here.
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Aerial view south and downriver from river mile 211.9 toward a Precambrian “island” of schist (photographs WM07, WM08, WM09) during the basal Cambrian sea encroachment, right bank of river mile 212.5.
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View northwest toward southeast side of Precambrian Zoroaster Granite “island” of Cambrian seaway, onlapped by Cambrian Tapeats Sandstone, from Tonto Trail, south of river mile 85.1.
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This data set contains boundaries and tags for major geologic units in Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. In addition to the polygons representing the areal extent of geologic units, it identifies major faults and continental glaciation in Alaska. The data depict the geology of the bedrock that lies at or near the land surface, but not the distribution of surficial materials such as soils, alluvium, and glacial deposits. This map complements the Generalized Geologic Map of the Conterminous United States by Reed and Bush. The data are generalized from a compilation prepared for use in the Geologic Map of North America, published as a paper map by the Geological Society of America and...
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Aerial view north into Clear Creek canyon, about 1 mile north of river mile 84.7. View of vertical beds of Paleoproterozoic Vishnu Schist overlain by horizontal Cambrian Tapeats Sandstone (brown cliff) in foreground, and tilted Mesoproterozoic Bass Formation in distance, that marks the Great Unconformity.
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View west and downriver toward lower part of Paleoproterozoic Zoroaster Granite “island” with pegmatite and granite intrusions into black Vishnu Schist on south side of river mile 85.7. Tapeats Sandstone at skyline.
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Aerial view west toward Bright Angel Creek delta (lower right center of photograph) and two Colorado River foot bridges to Phantom Ranch in Bright Angel Creek from over river mile 88.0. Upper black Kaibab Suspension Bridge is for mules and people crossing, lower gray Silver Bridge is for people and water pipeline crossing. Bass Formation (cliffs) and overlying red slope of Hakatai Shale (photograph EM17) at left overlies Precambrian metamorphic rocks.
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View south and downriver toward Diamond Peak (Redwall Limestone peak); schist and granite below Tapeats Sandstone cliff and Bright Angel Shale slope on west side of river mile 221.6.
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View west and downriver toward granite and gneiss in Lower Granite Gorge near Two Hundred and Thirtyfour Mile canyon, river mile 233.5.
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View downriver and northwest toward beginning of Granite Narrows, with metamorphic rocks and granitic intrusions, lower left of photograph (photograph CM10). River mile 135.5.
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View west and downriver toward Paleoproterozoic Vishnu Schist metamorphic complex from river mile 78.4. Greatest Angular Unconformity is between schist and overlying east-dipping strata of Mesoproterozoic Bass Formation. White talus of Hance asbestos mine at Cardenas Basalt sill within Bass Formation, upper right of photograph.
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This U.S. Geological Survey (USGS) data release includes whole rock geochemical and isotopic data, and uranium-lead isotopic data collected by both Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Sensitive High Resolution Ion Microprobe-Reverse Geometry (SHRIMP-RG) methods for rocks in Colorado, Wyoming, Utah, and New Mexico.
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View downriver from Crystal Creek delta toward pegmatite dikes in Vishnu Schist on north side of river below Crystal Rapids, from river mile 98.7.
map background search result map search result map Generalized Geologic Map of the United States CM01. View southwest and downriver toward Vishnu Schist CM05. Black river-polished amphibolitic schist CM09. View downriver and northwest toward beginning of Granite Narrows EM02. View west and downriver toward Paleoproterozoic Vishnu Schist metamorphic complex EM04. Pegmatite dikes in schist EM05. View west and downriver toward Paleoproterozoic schist and granite near Vishnu Creek EM12. Aerial view north into Clear Creek canyon EM13. View northwest toward southeast side of Precambrian Zoroaster Granite “island” of Cambrian seaway EM15. View west and downriver toward lower part of Paleoproterozoic Zoroaster Granite “island” with pegmatite and granite intrusions into black Vishnu Schist EM16. Aerial view west toward Bright Angel Creek delta and two Colorado River foot bridges to Phantom Ranch EM22. Aerial view northwest toward Horn Creek Rapids EM25. View downriver from Crystal Creek delta toward pegmatite dikes in Vishnu Schist EM26. River-polished Vishnu Schist WM02. View west toward granite rocks from Hundred and Ninety Mile canyon WM04. View southeast and downriver toward metamorphic rocks with granitic dikes WM06. Aerial view south and downriver toward a Precambrian “island” of schist WM12. View south and downriver toward Diamond Peak WM20. View west and downriver toward granite and gneiss in Lower Granite Gorge Data Release of Geochemical, Geochronologic, and Isotopic Data for Precambrian to Cenozoic Rocks from Colorado, New Mexico, Utah, and Wyoming Data Release of Geochemical, Geochronologic, and Isotopic Data for Precambrian to Cenozoic Rocks from Colorado, New Mexico, Utah, and Wyoming Generalized Geologic Map of the United States