Usage:
Graniteville Granite of /St. Francois Mountains Intrusive Suite (MO-recognized locally in St. Francois Mountains area)
[Name St. Francois Mountains applied concurrently to two different units in same area (see ACSN, 1970; NACSN, 1983, 2005, 2021).]
Geologic age:
Precambrian
Type section, locality, area and/or origin of name:
Not designated. Named from exposures at Graniteville, within area of active granite quarrying, in secs. 10, 11, 14, and 15, T. 34 N., R. 3 E., St. Francois Mountains, Iron Co., southeast MO (Graves, 1938).
AAPG geologic province:
Midcontinent region
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 ([ ]).