Doughnut Shale

Doughnut Shale.
State Utah
Name Doughnut Shale
Geologic age Mississippian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Minor
Sedimentary > Carbonate > Limestone (Bed)
Incidental
Sedimentary > Coal (Bed)
Comments marine and continental (marine fossils, but locally coal)
References

Hintze, L.F., 1980, Geologic map of Utah: Utah Geological and Mineral Survey, scale 1:500,000.

Gregson, J.D., and Chure, D.J., 2000, Geology and Paleontology of Dinosaur National Monument, Utah-Colorado, 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. 155-188.

Nelson, S.T., Harris, R.A., Dorais, M.J., Heizler, M., Constenius, K., and Barnett, D.E., 2002, Basement complexes in the Wasatch Fault, Utah, provide new limits on crustal accretion: Geology, v. 30, no. 9, p. 831-834.

NGMDB product
Counties Duchesne - Summit - Wasatch