Usage:
Spechty Kopf Formation (PA*)
Geologic age:
Late Devonian to Early Mississippian (Famennian to Kinderhookian)*
Type section, locality, area and/or origin of name:
East to northeast of Spechty Kopf hill in headwaters of Powell Creek, Stone Cabin Run, and East Branch of Rattling Creek, all in Lykens quadrangle, Dauphin Co., PA (Trexler and others, 1962).
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 ([ ]).