The National Geologic Map Database is migrating to a new infrastructure. We apologize for any service disruptions during this process.
|
|---|
Usage:
Cordell Dolomite of Manistique Group (MI,WI)
Cordell Formation of Manistique Group (MI,WI)
Cordell Member of Manistique Dolomite (MI,WI)
Geologic age:
Silurian (Llandovery to Ludlow)
Type section, locality, area and/or origin of name:
Type section: Abandoned quarry of Scott Quarry Company, excavated in north side of outlier of formation, in SW/4 sec. 29, T. 44 N., R. 4 W., about 1 mi southeast of Cordell, Chippewa Co., northeastern MI (Newcombe, 1933).
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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).