|Tick Canyon Formation|
Stratigraphic range: Early Miocene
|Underlies||Mint Canyon Formation|
|Thickness||0–1,000 feet (0–305 m) (average)|
|Region||Sierra Pelona Mountains, Los Angeles County, California|
|Named for||Tick Canyon|
The Tick Canyon Formation is a Miocene epoch geologic formation in the Sierra Pelona Mountains of Los Angeles County, California.
The Miocene is the first geological epoch of the Neogene Period and extends from about(Ma). The Miocene was named by Charles Lyell; its name comes from the Greek words μείων and καινός and means "less recent" because it has 18% fewer modern sea invertebrates than the Pliocene. The Miocene is preceded by the Oligocene and is followed by the Pliocene.
Los Angeles County, officially the County of Los Angeles, in the Los Angeles metropolitan area of the U.S. state of California, is the single most populous county in the United States, with more than 10 million inhabitants as of 2018. As such, it is the largest non–state level government entity in the United States. Its population is larger than that of 41 individual U.S. states. It is the third-largest metropolitan economy in the world, with a Nominal GDP of over $700 billion—larger than the GDPs of Belgium, Norway, and Taiwan. It has 88 incorporated cities and many unincorporated areas and, at 4,083 square miles (10,570 km2), it is larger than the combined areas of Delaware and Rhode Island. The county is home to more than one-quarter of California residents and is one of the most ethnically-diverse counties in the U.S. Its county seat, Los Angeles, is also California's most populous city and the second most populous city in the U.S., with about 4 million residents.
The Tick Canyon Basin drains into the Santa Clara River.
The Santa Clara River is 83 miles (134 km) long, and is one of the most dynamic river systems in Southern California. The river drains parts of four ranges in the Transverse Ranges System north and northwest of Los Angeles, then flows west onto the Oxnard Plain and into the Santa Barbara Channel of the Pacific Ocean.
The formation was deposited on land mostly by streams and consists of green sandstone, coarse-grained conglomerates, and red claystone. 600 feet (180 m).It has an average thickness of
Sandstone is a clastic sedimentary rock composed mainly of sand-sized mineral particles or rock fragments.
Conglomerate is a coarse-grained clastic sedimentary rock that is composed of a substantial fraction of rounded to subangular gravel-size clasts, e.g., granules, pebbles, cobbles, and boulders, larger than 2 mm (0.079 in) in diameter. Conglomerates form by the consolidation and lithification of gravel. Conglomerates typically contain finer grained sediment, e.g., either sand, silt, clay or combination of them, called matrix by geologists, filling their interstices and are often cemented by calcium carbonate, iron oxide, silica, or hardened clay.
The formation overlies the Oligocene Period Vasquez Formation, and underlies the Upper Miocene Mint Canyon Formation.
The Oligocene is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present. As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene was coined in 1854 by the German paleontologist Heinrich Ernst Beyrich; the name comes from the Ancient Greek ὀλίγος and καινός, and refers to the sparsity of extant forms of molluscs. The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene Epoch. The Oligocene is the third and final epoch of the Paleogene Period.
The Mint Canyon Formation is a Miocene geologic formation in the Sierra Pelona Mountains of Los Angeles County, southern California.
North of the Tick Canyon fault, the beds are almost vertical.
It preserves vertebrate fossils of the Lower Miocene subperiod of the Miocene epoch, in the Neogene Period of the Cenozoic Era.
The Neogene is a geologic period and system that spans 20.45 million years from the end of the Paleogene Period 23.03 million years ago (Mya) to the beginning of the present Quaternary Period 2.58 Mya. The Neogene is sub-divided into two epochs, the earlier Miocene and the later Pliocene. Some geologists assert that the Neogene cannot be clearly delineated from the modern geological period, the Quaternary. The term "Neogene" was coined in 1853 by the Austrian palaeontologist Moritz Hörnes (1815–1868).
Vasquez Rocks Natural Area Park is a 932-acre (377-hectare) park located in the Sierra Pelona Mountains in northern Los Angeles County, California. It is located in the town of Agua Dulce, between the suburbs of Santa Clarita and Palmdale. The area is also visible from the Antelope Valley Freeway.
The Chatsworth Formation is a Cretaceous period sandstone geologic formation in the Simi Hills and western Santa Susana Mountains of southern California.
The Claremont Shale is a Miocene epoch geologic formation in the Berkeley Hills of the East Bay region of the San Francisco Bay Area, California.
The Mulholland Formation is a Pliocene epoch geologic formation in the Berkeley Hills and San Leandro Hills of the East Bay region of the San Francisco Bay Area, California. It is found within Alameda County and Contra Costa County.
The Orinda Formation is a Pliocene epoch geologic formation in the Berkeley Hills of the East Bay region of the San Francisco Bay Area, California.
The Punchbowl Formation is a sedimentary sandstone geologic formation in the northern San Gabriel Mountains, above the Antelope Valley in Los Angeles County, southern California.
The Briones Formation is a Late/Upper Miocene epoch geologic formation of the East Bay region in the San Francisco Bay Area, California.
The Kern River Beds Formation is a Neogene Period geologic formation in the southeastern San Joaquin Valley, within Kern County, California.
The Crowder Formation is a geologic formation in the Central and Western Mojave Desert, in northern Los Angeles County and eastern San Bernardino County, in Southern California.
The Towsley Formation is a geologic formation in the Santa Susana Mountains, in Los Angeles County, California.
The Topanga Canyon Formation is a Miocene epoch geologic formation in the Santa Monica Mountains, Simi Hills, Santa Ana Mountains and San Joaquin Hills, in Los Angeles County, Ventura County, and Orange County, southern California. It is primarily composed of hard sandstone with some inter-bedded siltstone.
The Santa Margarita Formation is a Neogene Period geologic formation in the San Joaquin Valley of central California.
The San Pablo Formation is a Late/Upper Miocene epoch geologic formation of the East Bay region in the San Francisco Bay Area, California.
The Martinez Formation is an Eocene Epoch geologic formation in California.
The Pomerado Conglomerate Formation is a geologic formation in southwestern San Diego County, California.
The Scripps Formation is a geologic formation in coastal San Diego County, California.
The San Francisquito Formation is a geologic formation in northern Los Angeles County, California.
The Harold Formation is a geologic formation in the Central Mojave Desert, west of Victorville and north of the San Gabriel Mountains, in eastern San Bernardino County, Southern California.
The Palm Spring Formation is a Pleistocene Epoch geologic formation in the eastern Colorado Desert of Imperial County and San Diego County County, Southern California.
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