Usage:
No current usage.
(Rocks of †Haymeadow Creek Member of Trenton Formation (MI) reallocated to Collingwood Shale. See Collingwood.)
Geologic age:
Late Ordovician (Mohawkian)
Type section, locality, area and/or origin of name:
Origin of name not stated by author, but probably named from exposures along Haymeadow Creek, near Rapid River, Delta Co., northern MI (Hussey, 1952).
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 ([ ]).