Usage:
Whim Hill Breccia (NM)
Geologic age:
Late Cretaceous or younger
Type section, locality, area and/or origin of name:
Two areas of exposure in northern part of Santa Rita stock; larger, comprises area of over 40,000 sq ft and forms elongate mass in central part of North Pit; second body found on northern edge of Central Island between North and South Pits. In Santa Rita copper mine, in southeastern corner of Santa Rita quadrangle, about 12 mi east of Silver City, Grant Co., southwestern NM (Kerr and others, 1950).
AAPG geologic province:
Basin-and-Range province
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 ([ ]).