- Usage in publication:
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- Ginkgo flow
- Modifications:
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- Original reference
- Dominant lithology:
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- Basalt
- AAPG geologic province:
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- Eastern Columbia basin
Summary:
Pg. 8 (fig. 2), 12-15. Ginkgo flow of Frenchman Springs Basalt Member of Yakima Basalt. Flow in lower part of Yakima Basalt. Petrified logs occur in a layer of pillows and palagonite breccia which rests directly on Vantage Sandstone Member at most places in Vantage-Priest River area. Maximum thickness 150 +/-20 feet. Underlies Sand Hollow flow. [Age is Miocene.]
Type locality: in lower part of Schnebly Coulee, west of Vantage, [Vantage 7.5-min quadrangle], Kittitas Co., south-central WA. Named from Ginkgo Petrified Forest State Park, [Vantage 7.5-min quadrangle, Kittitas Co., south-central WA].
Source: Publication; US geologic names lexicon (USGS Bull. 1350, p. 290).
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 ([ ]).