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Geologic map depicting the Smartville Complex (in brown) and other accreted terranes in California. [1]The Smartville Block, also called the Smartville Ophiolite, Smartville Complex, or Smartville Intrusive Complex, is a geologic terrane formed in the ocean from a volcanic island arc that was accreted onto the North American Plate during the late Jurassic (~160–150 million years ago).
The Sierra Nevada–Great Valley Block (SNGV) is a section of the Earth's crust in California, United States, encompassing most of the region east of the Great Valley fault system which runs along the eastern foot of the Coast Ranges, and west of the Sierra Nevada Fault which runs along the foot of the Sierra Nevada's eastern scarp.
The Newport–Inglewood-Rose Canyon Fault Zone. The Newport–Inglewood Fault is a right-lateral strike-slip fault [1] in Southern California.The fault extends for 47 mi (76 km) [1] (110 miles if the Rose Canyon segment is included) from Culver City southeast through Inglewood and other coastal communities to Newport Beach at which point the fault extends east-southeast into the Pacific Ocean.
One terrane that may have driven the orogeny is the Nolan Belt, an intensely folded mass of quartzite, schist and slate extending from Esmeralda County to the north, through central Nevada as far as the Mountain City and Bull Run Mountain area near Idaho. Hinterland and foreland basins filled with sediments as the Antler highland eroded.
The Pacific plate is a major section of the Earth's crust, gradually expanding by the eruption of magma along the East Pacific Rise to the southeast. It is also being subducted far to the northwest into the Aleutian Trench under the North American plate well north of San Francisco. In California, the plate is sliding northwestward along a ...
Carlin Trend, shown with other alignments of sediment-hosted gold deposits in Nevada.Source: USGS. Newmont's Gold Quarry mine in 2009, on the Carlin Trend. The Carlin Unconformity or Carlin Trend is a geologic feature in northeastern Nevada which represents a period of erosion or non-deposition likely associated with a collision between a tectonic crustal block called a terrane and the North ...
A 5.8-magnitude earthquake hit Nevada Monday afternoon, according to the United States Geological Survey, with shaking felt as far west as California. The quake struck 15 miles north-northeast of ...
The discovery well was drilled by Getty Oil, now part of Chevron Corp., in May 1927, in the Pyramid Hill pool of the Main Area. Dates of discovery of other parts of the field were 1928 for the Coffee Canyon Area, 1937 for the Pyramid Area, 1943 for the Sharktooth Area, and most recently 1974 for the Alma Area.