- Usage in publication:
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- Big Hill basalt
- Big Hill flow
- Modifications:
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- Original reference
- Dominant lithology:
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- Basalt
- AAPG geologic province:
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- Sierra Grande uplift
Summary:
Pg. 117 (fig. 17), 119, pl. 1-b. Big Hill basalt or flow. Ten basalt flows in what is termed Folsom sequence of Clayton basalt are named and mapped. Stratigraphic position of six of these basalts has been determined. Big Hill is second in known sequence; younger than Emery Peak and older than Mud Hill. Age is Late Cenozoic.
Big Hill is a deeply eroded cone composed of tuff, spatters, and minor amounts of lava, in Union Co., northeastern NM.
Source: US geologic names lexicon (USGS Bull. 1200, p. 334).
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 ([ ]).