Usage:
Elbow Ridge Sandstone (MD,PA)
Elbow Ridge Sandstone of Helderberg Group (WV)
Elbow Ridge Sandstone Member of Helderberg Formation (MD)
Elbow Ridge Sandstone Member of Coeymans Limestone of Helderberg Group (PA)
Geologic age:
Early Devonian
Type section, locality, area and/or origin of name:
Section is on south side of Licking Creek where it bends southward across MD line, and across northeastern end of Elbow Ridge. It is several hundred feet west of bridge crossing creek about 1 mi east of Warren Point and 1.5 mi southwest of Yeakle Mill, Franklin Co., southern PA (Swartz, 1939).
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 ([ ]).