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The Granite Gorge Metamorphic Suite consists of lithologic units, the Brahma, Rama, and Vishnu schists, that have been mapped within the Upper, Middle, and Lower Granite Gorges of the Grand Canyon. The Vishnu Schist consists of quartz - mica schist, pelitic schist, and meta- arenites .
The resulting Grand Canyon Supergroup of sedimentary units is composed of nine varied geologic formations that were laid down from 1.2 billion and 740 million years ago in this sea. [11] Good exposures of the supergroup can be seen in eastern Grand Canyon in the Inner Gorge and from Desert View, Lipan Point and Moran point. [12] [note 1]
Royal Gorge, Colorado; Ruby Canyon, Colorado and Utah; Sabino Canyon, Arizona; Saint Christopher's Canyon, Aibonito and Barranquitas, Puerto Rico; Salt River Canyon, Arizona; San Rafael River Gorge, Utah; Santa Elena Canyon, Big Bend National Park, Texas (also in Big Bend N.P.: Boquillas and Mariscal Canyons) Smoke Hole Canyon, West Virginia
Grand Canyon, Arizona, at the confluence of the Colorado River and Little Colorado River.. A canyon (from Spanish: cañón; archaic British English spelling: cañon), [1] gorge or chasm, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales. [2]
The Virgin River Gorge, located between St. George, Utah, and Beaver Dam, Arizona, is a long canyon carved out by the Virgin River in northwest Arizona. [1] The Virgin River created the topography of both Zion National Park and the Virgin River Gorge. Interstate 15 runs through the canyon and crosses the Virgin River several times. The Virgin ...
Except where underlain by the Sixtymile Formation, the Tapeats Sandstone is the Cambrian geologic formation that is the basal geologic unit of the Tonto Group.Typically, it is also the basal geologic formation of the Phanerozoic strata exposed in the Grand Canyon, Arizona, and parts of northern Arizona, central Arizona, southeast California, southern Nevada, and southeast Utah.