Usage:
Lighthouse Point Member of Mona Schist (MI*)
Lighthouse Point Basalt (MI)
Geologic age:
Archean*
Type section, locality, area and/or origin of name:
Lighthouse Point in easternmost part of city of Marquette, Marquette 7.5-min quadrangle, Marquette Co., Northern Peninsula, northwestern MI (Gair and Thaden, 1968).
AAPG geologic province:
Lake Superior region*
Wisconsin arch*
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 ([ ]).