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Map showing publication footprint
  • Usage in publication:
    • Brookesmith formation
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Limestone
    • Shale
  • AAPG geologic province:
    • Bend arch
Publication:

Conselman, F.B., 1961, First day; Brown County road log, IN A study of Pennsylvanian and Permian sedimentation in the Colorado River Valley of west-central Texas: Abilene Geological Society Field Trip Guidebook, September 15-16, p. 9-20.


Summary:

Pg. 7 (fig. 2), 14. Brookesmith formation of Canyon group. Name proposed for the beds between top of Brownwood formation (formerly basal member of Graford) and base of Winchell formation [limestone?] in Colorado River Valley area, Brown County, Texas. Graford formation of Eargle (1960, USGS Prof. Paper 315-D; adopted by the USGS) not used. Includes Adams Branch limestone member below and Cedarton shale member above. Age is Pennsylvanian (Canyon age).
Type locality: immediate vicinity of village of Brookesmith, Brown Co., north-central TX.

Source: US geologic names lexicon (USGS Bull. 1350, p. 93); GNU records (USGS DDS-6; Denver GNULEX).


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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