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  • Usage in publication:
    • Wadsworth Bed
  • Modifications:
    • Named
  • AAPG geologic province:
    • Great Basin province
Publication:

Davis, J.O., 1978, Quaternary tephrochronology of the Lake Lahontan area, Nevada and California: Nevada Archaeological Survey Research Paper, no. 7, 137 p.


Summary:

Unit is named the Wadsworth Bed of the Eetza Formation in the area between Wadsworth and Nixon, Lake Lahontan area, NV. Is a 1-cm-thick layer of tephra of intermediate chemical composition. Age is Pleistocene, 75 to 35 ka.

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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