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  • Usage in publication:
    • New Pass Tuff*
  • Modifications:
    • Named
    • Geochronologic dating
  • Dominant lithology:
    • Tuff
  • AAPG geologic province:
    • Great Basin province
Publication:

McKee, E.H., and Stewart, J.H., 1971, Stratigraphy and potassium-argon ages of some Tertiary tuffs from Lander and Churchill Counties, central Nevada, IN Contributions to general geology, 1969: U.S. Geological Survey Bulletin, 1311-B, p. B1-B28.


Summary:

Unit is named the New Pass Tuff. Consists of red to lavender welded tuff. Thickness is 150 m at type; ranges from 15 to 150 m. Overlies and underlies unnamed Tertiary tuffs. Age is Miocene based on a radiometric (K-Ar; sanidine) age of 22.0 +/-0.9 Ma. (B1520)

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 ([ ]).

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