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Map showing publication footprint
  • Usage in publication:
    • Big Bend Park Group
  • Modifications:
    • Areal extent
  • 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. 12-33, pIs., tables, road logs. Big Bend Park Group. Consists of (ascending) Canoe Formation (new), Chisos Formation, and South Rim Formation (new). Overlies Tornillo Group. Age is middle Eocene to Oliogocene or younger.

Source: US geologic names lexicon (USGS Bull. 1350, p. 64).


Map showing publication footprint
  • Usage in publication:
    • Big Bend Park Group
  • Modifications:
    • Principal reference
  • AAPG geologic province:
    • Permian basin
Publication:

Maxwell, R.A., and Hazzard, R.T., 1967, Stratigraphy, IN Maxwell, R.A., and others, Geology of Big Bend National Park, Brewster County, Texas: University of Texas-Austin, Bureau of Economic Geology Publication, no. 6711, p. 23-156.


Summary:

Pg. 107-151, pls. Big Bend Park Group. Formal proposal of name. Includes the Tertiary volcanic rocks exposed in Big Bend National Park. Comprises (ascending) Canoe Formation, Chisos Formation, and South Rim Formation. These are formed of massive coarse conglomerate, sandstone, clay, fresh-water limestone, tuff, tuffaceous sandstone and clay, flow breccia, and lava. Complete uninterrupted section not preserved. Only basal unit, Canoe Formation, has been precisely dated. Age is middle Eocene to Oligocene or younger.
Named from Big Bend National Park, Brewster Co., southwestern TX.

Source: US geologic names lexicon (USGS Bull. 1350, p. 64).


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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