The Price River Formation is a geologic formation in Utah. It preserves fossils dating back to the Cretaceous period. The Price River Formation is approximately 200 metres (660 ft) thick at its type locality (Price River Canyon) and consists of cliff-forming sandstone and siltstone visible in the Book Cliffs.[1]
| Price River Formation | |
|---|---|
| Stratigraphic range: Cretaceous | |
| Type | Formation |
| Lithology | |
| Primary | sandstone, siltstone |
| Location | |
| Region | Utah |
| Country | United States |
Description edit
Irregularly bedded light-gray to gray, and grayish-brown to dark-gray beds of sheet sandstone, plus some beds of conglomerate and conglomeratic sandstone; sparse mudstone beds as well. The crossbedded sandstones are generally thin bedded to massive, and commonly thick bedded. Beds alternate irregularly to form steep, steplike slopes. Ranges in thickness from 9 to 75 m (30–250 ft). Fluvial in origin. This unit is equivalent, in part, to the Tuscher and Farrer Formations of the eastern Book Cliffs.[2]
Fossil pollen (palynomorphs) indicate a late Campanian (Late Cretaceous) age .[3]
See also edit
References edit
- ^ Alfred C. Guiseppe; Paul L. Heller (1998). "Long-term river response to regional doming in the Price River Formation, central Utah". Geology. 26 (3): 239–242. Bibcode:1998Geo....26..239G. doi:10.1130/0091-7613(1998)026<0239:LTRRTR>2.3.CO;2.
- ^ "Utah Geological Survey online interactive geologic map". Retrieved July 21, 2021.
- ^ Fouch, T.D., Lawton, T.F., Nichols, D.J., Cashion, W.B., and Cobban, W.A., 1983, Patterns and timing of synorogenic sedimentation in Upper Cretaceous rocks of central and northeast Utah, IN Reynolds, M.W., and Dolly, E.D., eds., Mesozoic paleogeography of the west-central United States: Society of Economic Paleontologists and Mineralogists, Rocky Mountain Section, Rocky Mountain Paleogeography Symposium, v. 2, p. 305-336.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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