Canyon Group, undivided (TXPAcn;0)

State	Texas
Name	Canyon Group, undivided
Geologic age	Phanerozoic \| Paleozoic \| Carboniferous Pennsylvanian-Late [Missouri]
Original map label	IPcn
Comments	many hundreds of feet of interbedded mudstone, shale, sandstone, and limestone
Primary rock type	fine-grained mixed clastic
Secondary rock type	medium-grained mixed clastic
Other rock types	limestone
Lithologic constituents	Major Sedimentary > Clastic > Mixed-clastic > Sandstone-Mudstone (Bed) Incidental Sedimentary > Carbonate > Limestone (Bed)granular, pelleted, separated by shale, discontinuous, impure, locally argillaceous, sandy locally, locally oolitic, crinoid stems, small horn corals, pelecypods, bryzoa, sponge spicules, algae, few gastropods and ostracods, locally abdt fusulinids
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. Bureau of Economic Geology, 1972, Abilene sheet, Geologic Atlas of Texas, Bureau of Economic Geology, University of Texas at Austin, scale 1:250,000. Bureau of Economic Geology, 1976, Brownwood sheet, Geologic Atlas of Texas, Bureau of Economic Geology, University of Texas at Austin, scale 1:250,000.
Geographic coverage	McCulloch - Mason - Menard