| State | Texas |
|---|---|
| Name | Canyon Group, undivided |
| Geologic age | Late Pennsylvanian; Missouri Series |
| 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
|
| Comments | many hundreds of feet of interbedded mudstone, shale, sandstone, and limestone |
| Stratigraphic units | (on Wichita Falls-Lawton Sheet, (1987), top to bott.: Home Creek Limestone, Salem School Limestone, Kisinger Sandstone, Colony Creek Shale that includes several ss, sh, ls, conglo units, and Cundiff Limestone near base, Ranger Limestone, Placid Shale, Winchell Limestone, Ventioner Formation (revised), Wolf Mountain Shale Jasper Creek Formation, and Palo Pinto Formation. On Brownwood Sheet (1976) unit includes (top down): Home Creek Limestone, Canyon Group, Colony Creek Shale, Ranger Limestone, Placid Shale, Corn Creek Limestone, Winchell Limestone, Cedarton Shale, Adams Branch Limestone |
| 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.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. |
| NGMDB product | |
| Counties | McCulloch - Mason - Menard |