Usage:
Leach Canyon Formation of Quichapa Group (NV*,UT*)
Subunits:
(alphabetical) --all in NV*,UT*: Narrows Tuff Member, Table Butte Tuff Member.
Geologic age:
early Tertiary (late Oligocene)*
Type section, locality, area and/or origin of name:
Type locality: south side of Leach Canyon, Iron Springs district, in southern part of T. 36 S., R. 13 W., Desert Mound quadrangle, Iron Co., southwestern UT. Named from Leach Canyon (Mackin, 1960; see also Averitt, 1967).
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 ([ ]).