Sedwick and Moran Formations, undivided (TXPsm;0)

State	Texas
Name	Sedwick and Moran Formations, undivided
Geologic age	Phanerozoic \| Paleozoic \| Permian [Wolfcamp]
Original map label	Psm
Comments	Sedwick Fm--mudstone and sandstone, and several thin gray to tan limestone beds; mostly mudst. tan, poorly exposed, few flaggy siltst. and sandst. beds, lt-gray, tan, laminated, ripples, burrowed; contains limestone beds 2-3 ft. One sandst. 5-15 ft. thick, crossbedded, plant fossils. Limest. fine to med grained, thin beds, sandy, clayey, fossils mostly crinoid frags. gastrpods, and Myalina. Thickness of Sedwick Fm. 30-40 ft. Moran Fm. Mudstone and sandstone, mostly mudst. tan, poorly exposed; fine-grained sheet sandst. in middle part, crossbedded, locally burrowed. Camp Colorado Limestone gray to lt brn, coarse-grained, massive, bioclastic, Myalina-bearing lentils. Thickness of Moran 160-200 ft.
Primary rock type	mudstone
Secondary rock type	sandstone
Other rock types	limestone
Lithologic constituents	Major Sedimentary > Clastic > Mudstone > Claystone (Bed) Minor Sedimentary > Clastic > Sandstone (Bed) Incidental Sedimentary > Carbonate > Limestone (Bed)
Map references	Bureau of Economic Geology, 1992, Geologic Map of Texas: University of Texas at Austin, Virgil E. Barnes, project supervisor, Hartmann, B.M. and Scranton, D.F., cartography, scale 1:500,000
Unit references	Bureau of Economic Geology, 1987, Wichita Falls-Lawton Sheet, Geologic Atlas of Texas: University of Texas at Austin, Bureau of Economic Geology, scale 1:250,000. Plummer, F.B., and Moore, R.C., 1921, Stratigraphy of the Pennsylvanian formations of north-central Texas: University of Texas Bulletin 2132.
Geographic coverage	Shackelford - Stephens - Throckmorton - Young