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Uplift on this fault is about 0.01–0.03 mm per year. This movement, combined with the activity of the adjacent Owens Valley and Lone Pine faults, is responsible for the continuing rise of the Sierra Nevada Mountains. [1] No large earthquake has been reported on this fault in recorded history.
Using data from his thermochronology analysis, Dumitru (1990) also constrained ages for the beginning of unroofing and uplift of the Sierra Nevada block to approximately 30-15Ma. Fission tracks – destructive remnants of radioactive decay in Uranium-bearing minerals – were shorter than expected in samples taken from several Sierra Nevada ...
10 million years ago, vertical movement along the Sierra fault started to uplift the Sierra Nevada. [2] Subsequent tilting of the Sierra block and the resulting accelerated uplift of the Sierra Nevada increased the gradient of western-flowing streams. The streams consequently ran faster and thus cut their valleys more quickly.
The Sierra Nevada (/ s i ˌ ɛr ə n ɪ ˈ v æ d ə,-ˈ v ɑː d-/ see-ERR-ə nih-VA(H)D-ə) [6] [a] is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily in Nevada.
California's Sierra Nevada Mountains (formed by delamination) as seen from the International Space Station.When a large portion of dense materials was removed under the tectonic plate at this location, the remaining portion of the crust and lithosphere underwent a rapid uplift forming this mountain range.
Major uplift was going on in Pleistocene, with some marine terraces raised 1,000 feet (300 m). The Santa Monica Mountains and the Channel Islands are different than the mountains to the north because they have granitic and metamorphic basement rocks more like the Sierra Nevada. The oldest rock in this part of the range is the Santa Monica Slate.
On this day in 1957, the first underground nuclear test was carried out at the Nevada Test Site, a 1,375 square-mile research center located 65 miles away from Las Vegas.The 1,7 kiloton nuclear ...
Subsequent tilting of the Sierra block and the resulting accelerated uplift of the Sierra Nevada increased the gradient of western-flowing streams. [110] The streams consequently ran faster and thus cut their valleys more quickly. Additional uplift occurred when major faults developed to the east, forming Owens Valley from Basin and Range ...