Tick Canyon Formation
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| Tick Canyon Formation | |
|---|---|
| Stratigraphic range: Early Miocene (Hemingfordian-Barstovian) ~ | |
| Type | Geologic formation |
| Underlies | Mint Canyon Formation |
| Overlies | Vasquez Formation |
| Thickness | 0–1,000 ft (0–305 m) (average) |
| Lithology | |
| Primary | Sandstone, conglomerate |
| Other | Claystone |
| Location | |
| Coordinates | 34°25′56″N 118°23′32″W / 34.43222°N 118.39222°W[1] |
| Approximate paleocoordinates | 33°18′N 111°12′W / 33.3°N 111.2°W |
| Region | Los Angeles County, California |
| Country | United States |
| Extent | Sierra Pelona Ridge |
| Type section | |
| Named for | Tick Canyon |
  Tick Canyon Formation (the United States)  Tick Canyon Formation (California) | |
The Tick Canyon Formation (Tt) or Tick Canyon strata, is an Early Miocene geologic formation in the Sierra Pelona Ridge of the San Gabriel Mountains in Los Angeles County, California.[2]
The Tick Canyon Basin drains into the Santa Clara River.[3]
Fossil content
The formation overlies the Oligocene to Lower Miocene Vasquez Formation, and underlies the Upper Miocene Mint Canyon Formation.[2][4]
The Tick Canyon strata was deposited on land mostly by streams and consists of green sandstones, coarse-grained conglomerates, and red claystones.[2][4][5] The Tick Canyon strata also contain abundant volcanic clasts, most of which resemble volcanic rocks of the Vasquez Formation.[6] It has an average thickness of 600 feet (180 m).[4]
North of the Tick Canyon Fault, the beds are almost vertical.[2]
It preserves vertebrate fossils of the Lower Miocene subperiod of the Miocene epoch, in the Neogene Period of the Cenozoic Era.[2][7]