Usage:
Chesterfield Range Group (ID*,UT*)
Subunits:
(alphabetical): Little Flat Formation (ID*,UT*), Monroe Canyon Limestone (ID*,UT*)
Geologic age:
Mississippian, Early*
Osagean*
Mississippian, Late*
Meramecian*
Chesterian*
Type section, locality, area and/or origin of name:
Type section: begins at top of Lodgepole Limestone at altitude of about 6,200 ft on southwest-trending spur, in NW/4 sec. 20, T. 7 S., R. 40 E., Chesterfield Range, Bannock Co., southeastern ID (Dutro and Sando, 1963).
AAPG geologic province:
Snake River basin*
Wasatch uplift*
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 ([ ]).