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Map showing publication footprint
  • Usage in publication:
    • Carter Canyon Ash Bed
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Ash
    • Marl
  • AAPG geologic province:
    • Denver basin
Publication:

Vondra, C.F., Schultz, C.B., and Stout, T.M., 1969, New member of the Gering Formation (Miocene) in western Nebraska, including a geologic map of Wildcat Ridge and related outliers: Nebraska Geological Survey Paper, no. 18, 18 p.


Summary:

Pg. 1, 4. Canyon Ash Bed of Helvas Canyon Member of Gering Formation. Consists of white, volcanic ash and marl. Thickness is 1.2 m at type locality. Age is Miocene.
Type locality: Helvas Canyon, east of Carter Canyon and south of Mitchell Pass, 4.3 km west and 9 km south of Gering, in NW/4 NE/4 NW/4 sec. 6, T. 20 N., R. 55 W., Scottsbluff quadrangle, Scotts Bluff Co., west-central NE.

Source: US geologic names lexicon (USGS Bull. 1520, p. 55).


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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