Search results
Results From The WOW.Com Content Network
Geology of the Older Precambrian Rocks of the Grand Canyon: Part I. Petrology and Structure of the Vishnu Complex. Part II. The Zoroaster Plutonic Complex and Related Rocks. Part III. Petrology of Mafic Schists and Amphibolites. Precambrian Research, 8, pp. 219–302. Babcock, R.S. (1990). The Precambrian Crystalline Core (of the Grand Canyon).
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]
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 Grand Canyon [a] is a steep-sided canyon carved by the Colorado River in Arizona, United States.The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (6,093 feet or 1,857 meters).
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
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 ...
The canyon has a length of about 240 kilometres (150 mi) as the gorge bends around Mount Namcha Barwa (7,782 metres or 25,531 feet) and cuts its way through the eastern Himalayas. Its waters drop from about 2,900 metres (9,500 ft) near Pei to about 1,500 metres (4,900 ft) at the end of the Upper Gorge where the Po Tsangpo River enters.
The gorge separates the major peaks of Dhaulagiri (8,167 m or 26,795 ft) on the west and Annapurna (8,091 m or 26,545 ft) on the east. The portion of the river directly between Dhaulagiri and Annapurna I (7 km or 4.3 mi downstream from Tukuche) is at an elevation of 2,520 m (8,270 ft), which is 5,571 m (18,278 ft) lower than Annapurna I. [4] As tectonic activity has forced the mountains higher ...