|Name||Sue Peaks Formation, Del Carmen Limestone, and Telephone Canyon Formation, undivided|
|Geologic age||Early Cretaceous|
Sedimentary > Carbonate > Limestone (Bed)
Sedimentary > Clastic > Mudstone > Shale > Black-shale (Bed)
|Comments||limestone and shale. Sue Peaks Formation is gray aphanitic limestone and interbedded yell-gray shale thickness 75 -250 ft. Occupies slope between overlying Santa Elena Ls and underlying Del Carmen Ls. Del Carmen is gray limestone aphanitic to fine grained, massive, chert nodules, weathers brown; rudistids and milliolids common. thickness 350-475 ft. Telephone Canyon Fm is yell-gray, marly, nodular limestone, marine fossils common thickness about 75 ft in Big Bend N.P.|
Bureau of Economic Geology, 1979, Emory Peak--Presidio Sheet, Geologic Atlas of Texas, University of Texas at Austin.
Bureau of Economic Geology, 1977, Del Rio Sheet, Geologic Atlas of Texas, University of Texas, Bureau of Economic Geology, 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.
|Counties||Brewster - Terrell|