Usage:
Squares Tunnel Formation (CA*)
Geologic age:
Late Devonian (Famennian)*
Type section, locality, area and/or origin of name:
Type section: in Mazourka Canyon, 0.9 km north-northeast of Squares Tunnel and about 13 km northeast of Independence, in [S/2 sec. 30], T. 12 S., R. 36 E., Lat. 36 deg. 52 min. 12 sec. N., Long. 118 deg. 04 min. 54 sec. W., Bee Springs Canyon 7.5-min quadrangle [1994 ed.], west side of Inyo Mountains, Inyo Co., eastern CA. Named from Squares Tunnel, shown on Independence 15-min quadrangle (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 ([ ]).