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National Geologic Map Database
Geologic Unit: Dunlap
Map showing publication footprint
  • Usage in publication:
    • Dunlap formation*
  • Modifications:
    • Named
  • AAPG geologic province:
    • Great Basin province
Publication:

Muller, S.W., and Ferguson, H.G., 1936, Triassic and Lower Jurassic formations of west central Nevada: Geological Society of America Bulletin, v. 47, no. 2, p. 241-252.


Summary:

Unit is named the Dunlap formation. Age is Early Jurassic.

Source: GNU records (USGS DDS-6; Menlo GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Dunlap Formation*
  • Modifications:
    • Age modified
  • AAPG geologic province:
    • Great Basin province
Publication:

Speed, R.C., 1981, Preliminary geologic map of the Sodaville quadrangle, Mineral County, Nevada: U.S. Geological Survey Miscellaneous Field Studies Map, MF-1300, 1 sheet, scale 1:24,000


Summary:

Age of the Dunlap Formation is modified from Early Jurassic to Jurassic and Cretaceous(?).

Source: GNU records (USGS DDS-6; Menlo 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 ([ ]).