Usage:
Millbach Formation of Conococheague Group (PA*)
Millbach Member of Conococheague Formation (PA)
Geologic age:
Late Cambrian*
Type section, locality, area and/or origin of name:
Type section: partial section measured in quarry about 0.5 mi southwest of Sheridan on south side of Mill Creek and 0.8 mi northeast of village of Millbach, Lebanon Co., PA (Gray and others, 1958).
AAPG geologic province:
Appalachian 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 ([ ]).