Usage:
Spikehorn Creek Granite (WI*)
Geologic age:
Paleoproterozoic*
Type section, locality, area and/or origin of name:
Outcrops in roadcuts on U.S. Highway 141-8, and on rock knobs in secs. 35 and 36, T. 38 N., R. 20 E., Pembine 15-minute quadrangle, Marinette Co., WI (Sims and Schulz, 1988).
AAPG geologic province:
Wisconsin arch*
Lake Superior 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 ([ ]).