| State | Texas |
|---|---|
| Name | Mississippi, Devonian, and Ordovician rocks, undivided |
| Geologic age | Mississippi; Devonian; and Ordovician |
| Lithologic constituents |
Major
Sedimentary > Chemical > Novaculite (Bed)
Minor
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Chemical > Chert (Bed)
|
| Comments | on west side of Solitario Uplift (southeast edge of Presidio Co.) includes Caballos Novaculite and Maravillas Fm.; in Tinaja Mtns (south edge of Marathon anticlinorium) includes various combinations of Caballos Novaculite, Maravillas Fm., Woods Hollow Shale, Fort Pena Fm., and upper part of Marathon Limestone. |
| Stratigraphic units | Caballos Novaculite, Maravillas Formation, Caballos Novaculite, Maravillas Formation, Woods Hollow Shale, Fort Pena Formation, and Marathon Limestone |
| References | Bureau of Economic Geology, 1979, Emory Peak--Presidio Sheet, Geologic Atlas of Texas, University of Texas at Austin.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 | Presidio |