- Usage in publication:
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- Watsons Creek basalt
- Modifications:
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- Geochronologic dating
- Dominant lithology:
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- Basalt
- AAPG geologic province:
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- Sierra Nevada province
Summary:
Pg. 4 (table 1), 35. Report on potassium-argon dating research pertinent to some problems of Cenozoic history of the Sierra Nevada. Age of the Watsons Creek basalt is [Pliocene], based on a radiometric (K-Ar) age of 2.2 +/-0.1 Ma.
Sample collected one-eighth mi north of Watsons Creek on west side of Highway 28 at north end of Lake Tahoe, Tahoe quadrangle, eastern CA.
Source: GNU records (USGS DDS-6; Menlo GNULEX); US geologic names lexicon (USGS Bull. 1350, p. 813).
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 ([ ]).