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Shiprock, an example of a volcanic neck, is composed of fractured volcanic breccia and black dikes of igneous rock called minette, a type of lamprophyre.It is the erosional remnant of the throat of a volcano, and the volcanic breccia formed in a diatreme.
Shiprock (Navajo: Naatʼáanii Nééz) is an unincorporated community on the Navajo reservation in San Juan County, New Mexico, United States. The population was 7,718 people in the 2020 census . For statistical purposes, the United States Census Bureau has defined Shiprock as a census-designated place (CDP).
It also bought an ore buying station at Shiprock, New Mexico. In 1953 it built a processing plant (called the Shiprock Mill) near the buying station. In 1963 the mines and mill were sold to the Vanadium Corporation of America. [23] [24] Later a partnership with other companies was formed called the Kermac Nuclear Fuels Corporation.
Dinétah is the traditional homeland of the Diné or Navajo, an Indigenous people of the Southwestern United States. In the Navajo language, the word "Dinétah" means "among the people" or "among the Navajo" (diné is the Navajo word that refers to the Navajo people; it also means "people" in the generic sense; -tah means "among, through, in ...
Fairchild Semiconductor International, Inc. was an American semiconductor company based in San Jose, California. It was founded in 1957 as a division of Fairchild Camera and Instrument by the "traitorous eight" who defected from Shockley Semiconductor Laboratory. It became a pioneer in the manufacturing of transistors and of integrated circuits.
It is situated about 22 miles (35 km) south of Shiprock, the most famous of these diatremes. Bennett Peak is set in the northeastern part of the Navajo Volcanic Field, a volcanic field that includes intrusions and flows of minette and other unusual igneous rocks which formed around 30 million years ago during the Oligocene. [5]
It is situated about 9.5 miles (15.3 km) southeast of Shiprock, the most famous of these diatremes. Cathedral Cliff is set in the northeastern part of the Navajo Volcanic Field, a volcanic field that includes intrusions and flows of minette and other unusual igneous rocks which formed around 30 million years ago during the Oligocene. [5]
The dams typically formed in weeks, were 12 to 86 miles (19 to 138 km) long, 150 to 2,000 feet (46 to 610 m) high (thicker upstream and thinner downstream) and had volumes of 0.03 to 1.2 cubic miles (0.13 to 5.00 km 3). [75] The longevity of the dams and their ability to hold Colorado River water in large lakes has been debated.