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Map showing publication footprint
  • Usage in publication:
    • Woodruff Formation*
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Mudstone
    • Chert
  • AAPG geologic province:
    • Great Basin province
Publication:

Smith, J.F., Jr., and Ketner, K.B., 1968, Devonian and Mississippian rocks and the date of the Roberts Mountains thrust in the Carlin-Pinon Range area, Nevada, IN Contributions to general geology, 1967: U.S. Geological Survey Bulletin, 1251-I, p. 1-18.


Summary:

Pg. I4-I7. Woodruff Formation. Consists of siliceous mudstone and chert with minor shale, siltstone, dolomite, and mudstone. Thickness 900+ m. Unconformably underlies Webb Formation or Chainman Shale. Age is Early to Late Devonian based on fossils [conodonts, graptolites, ammonites].
Type area: along upper part of Woodruff Creek, south-southeast of Carlin, in secs. 24 and 25, T. 32 N., R. 52 E., and in sec. 30, T. 32 N., R. 53 E., Elko Co., northeastern NV.

Source: US geologic names lexicon (USGS Bull. 1520, p. 339).


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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