| State | Utah |
|---|---|
| Name | Hermosa Group and Molas Formation |
| Geologic age | Mississipian to Pennsylvanian |
| Lithologic constituents |
Major
Sedimentary > Chemical > Evaporite (Bed)salt, potash, gypsum
Minor
Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed)
|
| Comments | Molas is red paleosol. Pinkerton Trail Formation marine. Paradox evaporite basin (sabkha); has oil, salt, potash |
| References | Hintze, L.F., 1980, Geologic map of Utah: Utah Geological and Mineral Survey, scale 1:500,000.Hintze, L.F., 1988, Geologic History of Utah: Brigham Young University Geology Studies Special Publication 7, 202 p.Baars, D.L., 2000, Geology of Canyonlands National Park Utah, in Sprinkel, D.A., Chidsey, Jr., T.C., and Anderson, P.B., Geology of Utah's Parks and Monuments: Utah Geological Association Publication 28, p. 61-83.Stevenson, G.M., 2002, Geology of Goosenecks State Park, San Juan County, Utah, in Sprinkel, D.A., Chidsey, Jr., T.C., and Anderson, P.B., Geology of Utah's Parks and Monuments: Utah Geological Association Publication 28, p. 433-447. |
| NGMDB product | |
| Counties | Emery - Garfield - Grand - San Juan - Wayne |