Usage:
Leaning Rock Formation of Perdido Group (CA*-notably in Cottonwood Mountains area)
Geologic age:
Early to Middle Mississippian (Tournaisian to Visean; Osagean)*
Type section, locality, area and/or origin of name:
Type section: near Rest Spring in Cottonwood Mountains, about 4 km east of mouth of Perdido Canyon, between 6,160 and 6,240 ft elevation, in northwest corner of sec. 31, T. 13 S., R. 42 E., Lat. 36 deg. 45 min. 30 sec. N., Long. 117 deg. 26 min. 27 sec. W., White Top Mountain 7.5-min quadrangle, Inyo Co., Death Valley National Monument, eastern CA. Named from Leaning Rock Peak about 3 km southeast of type section (Stevens and others, 1996).
AAPG geologic province:
Great Basin 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 ([ ]).