Cima Dome & Volcanic Field National Natural Landmark
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Cima Dome | |
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Elevation | 2,132 to 4,950 ft. (650 to 1,509 m) |
Location | California, USA |
Coordinates | 35.25N, 115.75W |
Type | granitic pluton |
Age of rock | 80 - 180 million years |
Cima Volcanic Range | |
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Elevation | 2,132 to 4,950 ft. (650 to 1,509 m) |
Location | California, USA |
Coordinates | 35.25N, 115.75W |
Type | volcanic field |
Age of rock | 7.6 million to 10,000 years |
Last eruption | About 10,000 years ago |
Cima Dome is a broad sloping upland in the Mojave Desert of California. The dome is the erosional remnant of granite plutons that formed deep under the earth's surface 180 - 80 million years ago when the Farallon Plate was being subducted beneath the North American Plate.
The Cima Volcanic Field includes 52 volcanic vents and extensive basaltic lava flows covering more than 150 sq km of the Mojave Desert. It is within the Mojave National Preserve. These cinder cones range in size from 82 to 508 ft. (25 to 155 m) in height and from 656 to 3,018 ft. (200 to 920 m) in diameter. Over 30 of these cones and associated flows are Pleistocene in age and are located in the southern portion of this field.
The range is located off Kelbaker Road in Cima, California.