Usage:
No current usage.
(Rocks of †Furnace Ridge Conglomerate Member of Gettysburg Formation (PA) reallocated to Hammer Creek Formation. See Hammer Creek.)
Geologic age:
Triassic, Late
Type section, locality, area and/or origin of name:
Named from Furnace Ridge, Lititz 7.5-min quadrangle, Lancaster Co., PA. (McLaughlin and Gerhard, 1953).
AAPG geologic province:
Piedmont-Blue Ridge province
Gettysburg 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 ([ ]).