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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Bofecillos Group
  • Modifications:
    • First used
  • AAPG geologic province:
    • Permian basin
Publication:

Maxwell, R.A., and Dietrich, J.W., 1965, Geologic summary of the Big Bend region, IN Geology of the Big Bend area, Texas, with road log and papers on natural history of the area: West Texas Geological Society Special Publication, October, 1965, no. 65-51, p. 11-33.


Summary:

Pg. 17, 25-26. Bofecillos Group. Comprises (ascending) Chisos Formation, Mitchell Mesa Ash-flow Tuff, Fresno Formation, Santana Ash-flow Tuff, and Rawls Basalt. Age is Eocene to Oligocene or younger.
Present in Bofecillos Mountains, southwestern Texas.

Source: US geologic names lexicon (USGS Bull. 1350, p. 81).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

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