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The Chico Formation is exposed in the Southern California Coast Ranges, western San Joaquin Valley, north of Mount Diablo, and in the Chico area of the northeastern Sacramento Valley. [ 1 ] It is also found in the eastern Simi Hills in Bell Canyon and Dayton Canyon, located in Los Angeles and Ventura Counties, near the community of West Hills .
Vasquez Rocks Natural Area Park is a 932-acre (377-hectare) park located in the Sierra Pelona in northern Los Angeles County, California. It is known for its rock formations, the result of sedimentary layering and later seismic uplift. It is located near the town of Agua Dulce, between the cities of Santa Clarita and Palmdale.
It is predominantly a medium-grained sandstone unit, deposited in a shallow marine environment. Because of its high porosity and nearness to petroleum source rocks, in many places it is an oil-bearing unit, wherever it has been configured into structural or stratigraphic traps by folding and faulting. Being resistant to erosion, it forms ...
Coso Rock Art District is a rock art site containing over 100,000 Petroglyphs by Paleo-Indians and/or Native Americans. [1] The district is located near the towns of China Lake and Ridgecrest, California .
Big and Little Petroglyph Canyons are two principal landforms within which are found major accumulations of Paleo-Indian and/or Native American Petroglyphs, or rock art, by the Coso People located in the Coso Range Mountains of the northern Mojave Desert, and now within the Naval Air Weapons Station China Lake, near the towns of China Lake and Ridgecrest, California. [3]
The fossils include unique species of fish that had never been found in the area before. The discovery is reshaping views on California geology with the possibility of extinct islands.
Brewer, Sarah (2016), Geology of Vasquez Rocks, pp. 1–8; Coffey, Kevin Thomas (2015), Oligocene-Miocene Sedimentary and Volcanic Strata of the Vincent Gap Region, Eastern San Gabriel Mountains, Southern California, USA, and Their Tectonic Significance, UCLA, pp. 1–174
Turbidites in the Venado Sandstone (Great Valley Sequence) at Lake Berryessa, California.. The Great Valley Sequence of California is a 40,000-foot (12 km)-thick group of related geologic formations that are Late Jurassic through Cretaceous in age (150–65 Ma) on the geologic time scale.