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National Geologic Map Database

Geologic Unit: Jordan River

Usage:

Jordan River Formation of Traverse Group (MI)


Geologic age:

Late Devonian


Type section, locality, area and/or origin of name:

Along Lake Michigan shore, about 1.6 km north of Norwood, SE/4 sec. 22, and NE/4 sec. 27, T. 33 N., R. 9 W., Jordan River State Forest, southwest Charlevoix Co., MI (Kesling and others, 1974).


AAPG geologic province:

Michigan basin


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).