Usage:
No current usage.
(†Curtin Limestone (PA) abandoned. Is same as Linden Hall Formation. See Linden Hall.)
Geologic age:
Late Ordovician
Type section, locality, area and/or origin of name:
Quarry south of headframe of Bell Mine of America Lime and Stone Company at Bellefonte, Centre Co., PA. Named from Curtin Gap, 3 miles northeast of Bellefonte (Kay, 1943).
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 ([ ]).