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National Geologic Map Database
Geologic Unit: Storff
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Map showing publication footprint
  • Usage in publication:
    • Storff Formation
  • Modifications:
    • Named
  • Dominant lithology:
    • Phyllite
    • Slate
    • Limestone
  • AAPG geologic province:
    • Great Basin province
Publication:

Decker, R.W., 1962, Geology of the Bull Run quadrangle, Elko County, Nevada: Nevada Bureau of Mines and Geology Bulletin, no. 60, 65 p., (incl. geologic map, scale 1:62,500)


Summary:

Pg. 19-20, 36 (table 1), pl. 1. Storff Formation. Black to brown thin-bedded phyllites and slates with interbedded argillaceous limestones. Thickness about 3,900 feet. Overlies Chellis Limestone (new); underlies Van Duzer Limestone (new); both contacts apparently conformable. Age is Silurian(?), based on regional correlation.
[Type locality not stated.] Named from Storff Creek which flows down western slope of Bull Run Mountains in northern part of Bull Run 15-min quadrangle, Elko Co., northeastern NV. Exposed on wide east-west band which crosses northern part of Bull Run Mountains.

Source: US geologic names lexicon (USGS Bull. 1350, p. 727); 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 ([ ]).