Title | Dikes in the wall of the canyon at Black Canyon of the Gunnison National Park, Colorado |
Description | Here we see pink pegmatite dikes cutting the Black Canyon Gneiss (Precambrian). This is a photo of the Black Canyon wall, taken from an overlook on South Rim Drive, several hundred yards away on the other side of the canyon. The thickest dikes are 10's of meter thick. |
Chronostratigraphy | Precambrian |
Lithostratigraphy | Black Canyon Gneiss |
Location | USA ▹ Colorado ▹ Gunnison. Near Gunnison. South Rim Drive, Black Canyon of the Gunnison National Park. |
Photographer | Dexter Perkins. 1999. |
Collection | E181030992F-31. |
Key words | Black Canyon of the Gunnison, gneiss, dike, pegmatite, Colorado |
Tech details | 519 KB. Vista. Canon EOS Rebel, 55mm, Kodak Elite Chrome 100 ASA. |
GeoDIL number | 1732 |
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