| State | Utah |
|---|---|
| Name | Nopah and Bonanza King Formations, Muav Limestone, and Pioche Shale |
| Geologic age | Middle Cambrian |
| Lithologic constituents |
Major
Sedimentary > Carbonate > Dolostone (Bed)
Minor
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Carbonate > Limestone (Bed)Pioche Shale really low grade phyllite; burial metamorphism
Metamorphic > Metasedimentary > Metaclastic > Phyllite (Greenschist)Pioche Shale really low grade phyllite; burial metamorphism
|
| 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.Sundberg, F.A., and McCollum, L.B., 2000, Ptychopariid trilobites of the Lower-Middle Cambrian boundary interval, Pioche Shale, southeastern Nevada: Journal of Paleontology, v. 74, no. 4, p. 604-630. |
| NGMDB product | |
| Counties | Beaver - Iron - Washington |