Usage:
Alamo Breccia Member of Guilmette Formation (NV*)
Alamo Breccia Member of Devils Gate Limestone (NV*)
Geologic age:
Late Devonian (Frasnian)*
Type section, locality, area and/or origin of name:
Type locality: on west edge of West Pahranagat Range, 0.2 km south of NV Highway 375, 3 km southwest of Hancock Summit, in N/2 SE/4 sec. 19, T. 6 S., R. 59 E. (unsurveyed), Lat. 37.41 deg. N., Long. 115.40 deg. W., Crescent Reservoir 7.5-min quadrangle, Lincoln Co., southern NV. [Named from exposures around community of Alamo, southern NV] (Sandberg and others, 1997).
AAPG geologic province:
Great Basin province
South Western Overthrust
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 ([ ]).