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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Wolf Mountain Shale
  • Modifications:
    • Areal extent
  • AAPG geologic province:
    • Fort Worth syncline
Publication:

Barnes, V.E. (project director), 1987, Geologic atlas of Texas, Wichita Falls-Lawton sheet: University of Texas-Austin, Bureau of Economic Geology Geologic Atlas of Texas, 1 sheet, scale 1:250,000, Alfred Sherwood Romer memorial edition [Also available in GIS format: Texas Comm. Env. Quality (TCEQ), Austin, TX, 15-minute Digital GAT (Geologic Atlas of Texas) Quads, v. 3/01/2004, NW CD-ROM. GIS files, browse graphics: http://www.beg.utexas.edu/mainweb/services/15minquads.htm]


Summary:

Mapped as a formation of Canyon Group in the southeastern part of mapped area, north-central TX (ascending): Palo Pinto Formation, Wolf Mountain Shale, Winchell Limestone, Placid Shale, Ranger Limestone, Colony Creek Shale, and Home Creek Limestone. Farther east, Canyon is divided into (ascending): Willow Point Formation, Jasper Creek Formation and its Chico Ridge Limestone [unranked]), Ventioner Formation, Ranger Limestone, and Colony Creek Shale. Present in southeastern Jack Co, on Fort Worth syncline, and extends onto adjacent Sherman sheet. Partially equivalent to Jasper Creek Formation (revised). Is mostly shale, gray, weathers tan, laminated and bioturbated, commonly silty and calcareous, locally abundant ferruginous nodules, fossiliferous with brachiopods, fusulinids, solitary corals, and abundant crinoids; sandstone, very fine grained to fine grained, mostly in thin beds to as much as 1 ft thick with horizontal and ripple laminae, locally soft-sediment deformed, also in lenses to as much as 8 ft thick, thick to thin bedded, contorted, ripple marked, local tracks and trails; limestone lentils, mostly in upper part, dark gray and brown, coarse grained, argillaceous, bioclastic, commonly poorly indurated. Wolf Mountain is 200-225 ft thick. Separately mapped unnamed sandstone that is possibly equivalent to unnamed sandstones of Ventioner Formation. Age is Missouri (Late Pennsylvanian). Geologic map.

Source: GNU records (USGS DDS-6; Denver GNULEX).


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