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Campagrande Formation

Campagrande Formation
State Texas
Name Campagrande Formation
Geologic age Phanerozoic | Mesozoic | Cretaceous-Early
Comments named for Campagrande Draw in Finlay Mtns, Hudspeth Co., TX in Permian Basin. Basal Cret. calcar rocks lie unconformably on Pennsylvanian Hueco Fm. Limestone, marl, conglomerate, sandstone, siltstone, and shale. 25 ft of ls conglo at base overlain by 350 ft of gray ls, generally massive, but local thin beds of ls grading into shale.
Primary rock type limestone
Secondary rock type mudstone
Other rock types sandstone; siltstone
Lithologic constituents
Major
Sedimentary > Carbonate > Limestone (Bed)
Minor
Sedimentary > Carbonate > Marlstone (Bed)
Sedimentary > Clastic > Mixed-clastic (Bed)
Map references
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
Unit references
Bureau of Economic Geology, 1968, Van Horn-El Paso Sheet, Geologic Atlas of Texas: Bureau of Economic Geology, The University of Texas at Austin, scale 1:250,000.
Counties Hudspeth