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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.
In the Soledad Basin and the San Andreas Fault Zone, the formation is described by the United States Geological Survey (USGS) as: Early Miocene to Oligocene? yellowish and reddish sandstone, conglomerate, and interbedded andesite-basalt, lying on pre-Tertiary crystalline basement rocks and unconformably below strata of Tick Canyon Formation ...
The Vaqueros Formation is a sedimentary geologic unit primarily of Upper Oligocene and Lower Miocene age, which is widespread on the California coast and coastal ranges in approximately the southern half of the state. It is predominantly a medium-grained sandstone unit, deposited in a shallow marine environment.
Agua Dulce is located along California State Route 14, halfway between Santa Clarita and Palmdale, and 45 miles (72 km) north of Los Angeles, in the Sierra Pelona Valley region of Southern California. Vasquez Rocks is located in Agua Dulce. The Pacific Crest Trail, which runs from Mexico to Canada, goes through Agua Dulce.
Soledad Canyon is a long narrow canyon/valley located in Los Angeles County, California between the cities of Palmdale and Santa Clarita. It is a part of the Santa Clara River Valley , and extends from the top of Soledad Pass to the open plain of the valley in Santa Clarita .
Geology and ground waters of the western part of San Diego County, California. Department of the Interior, United States Geological Survey. Kennedy, Michael P. (1975). Geology of the San Diego metropolitan area, California. California Division of Mines and Geology. "General Plan Final Program EIR: 3.11 Paleontological Resources" (PDF). City of ...
The Sespe Formation is a widespread fossiliferous sedimentary geologic unit in southern and south central California in the United States. It is of nonmarine origin, consisting predominantly of sandstones and conglomerates laid down in a riverine, shoreline, and floodplain environment between the upper Eocene Epoch (around 40 million years ago) through the lower Miocene.
Close-up photograph of the Sisquoc Formation, showing the friable, planiform nature of the rock on a weathered surface. Rock hammer for scale. The Sisquoc Formation was deposited in a middle bathyal environment, at a depth of between 150 and 1500 meters, between approximately 4 and 6 million years ago – the upper Miocene and lower Pliocene ...