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Triassic (1) sedimentary rocks in Salt southwestern Utah

State Utah
Name Triassic (1) sedimentary rocks in Salt southwestern Utah
Geologic age Early Triassic
Comments shallow marine transgressions and regressions along very gently sloping continental shelf
Primary rock type mudstone
Secondary rock type siltstone
Other rock types limestone; sandstone; conglomerate; evaporite
Lithologic constituents
Major
Sedimentary > Clastic > Mixed-clastic > Siltstone-mudstone (Bed)red beds
Minor
Sedimentary > Carbonate > Limestone (Bed)transgressive, marine
Sedimentary > Clastic > Conglomerate (Lens)deposited in paleovalleys; in situ weathering on paleosurface
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Sedimentary > Chemical > Evaporite > Gypsum (Bed)
Map references
Hintze, L.F., 1980, Geologic map of Utah: Utah Geological and Mineral Survey, scale 1:500,000.
Unit references
Hintze, L.F., 1980, Geologic map of Utah: Utah Geological and Mineral Survey, scale 1:500,000.
Biek, R.G., Willis, G.C., Hylland, M.D., and Doelling, H.H., 2000, Geology of Zion 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. 107-138.`
Counties Beaver - Iron - Kane - Millard - Piute - San Juan - Washington