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National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Bell Valley andesite
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Andesite
  • AAPG geologic province:
    • Permian basin
Publication:

Hay-Roe, Hugh, 1957, Geologic map of Wylie Mountains and vicinity, Culberson and Jeff Davis Counties, Texas: University of Texas-Austin, Bureau of Economic Geology Geologic Quadrangle Map, GQ-0021, 1 sheet, scale 1:63,360, [1956]


Summary:

Bell Valley Andesite of Garren Group. Name proposed for a thick sequence of dark-gray olivine andesite flows. Maximum exposed thickness 610 feet on Chipsa Mountain. Youngest volcanic formation in area. Age is Tertiary.
Type section: north side of Chipsa Mountain, Wylie Mountains area, Jeff Davis Co., TX. Named from Bell Valley on north side of Chipsa Mountain.

Source: US geologic names lexicon (USGS Bull. 1200, p. 292-293).


Map showing publication footprint
  • Usage in publication:
    • Bell Valley andesite
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Permian basin
Publication:

DeFord, R.K., and Brand, J.P., 1958, Cretaceous platform and geosyncline, Culberson and Hudspeth Counties, Trans-Pecos Texas: Society of Economic Paleontologists and Mineralogists, Permian Basin Section, Field Trip Guidebook, Spring meeting and field symposium, Van Horn, TX, Apr. 10-12, 1958, 90 p., (incl. geologic maps)


Summary:

Pg. 31 (fig. 14) [credited to R.K. DeFord]. Generalized columnar section shows Bell Valley andesite above Means trachyte.

Source: US geologic names lexicon (USGS Bull. 1200, p. 292-293).


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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