Ordovician rocks, undivided

Ordovician rocks, undivided
State Texas
Name Ordovician rocks, undivided
Geologic age Ordovician
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Sedimentary > Carbonate > Limestone (Bed)
Minor
Sedimentary > Clastic > Sandstone (Bed)
Incidental
Sedimentary > Chemical > Chert (Bed)
Comments includes Woods Hollow Shale, Fort Pena Formation, and upper parta of Marathon Limestone northwest side of The Solitario, east edge of Presidio County
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 Brewster - Presidio