- Usage in publication:
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- Jarita basalt member
- Modifications:
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- Original reference
- Dominant lithology:
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- Basalt
- AAPG geologic province:
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- San Juan basin
Summary:
Pg. 3, 38 (table 5), 46-48, pl. 1. Jarita basalt member of Los Pinos formation. Flows of olivine basalt; widely separated, disconnected single and multiple flows. Divided into unnamed northern, central, and southern types based primarily on petrographic characteristics. Maximum thickness 50 feet. Disconformably underlies Cordito member (new); overlies Esquibel member (new). Name credited to Butler (unpub. dissert.). Age is Miocene(?) or Pliocene(?).
Named from an elongate exposure along western rim of [Mesa de la Jarita] northeast of Vallecitos, [Las Tablas 7.5-min quadrangle, Rio Arriba Co., Carson National Forest area], central northern NM.
[Additional locality information from USGS historical topographic map collection TopoView, accessed June 8, 2014.]
Source: US geologic names lexicon (USGS Bull. 1200, p. 1913).
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 ([ ]).