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National Geologic Map Database

Geologic Unit: Stoney Fork

Usage:

Stoney Fork Member of Princess Formation of Breathitt Group (KY)
Stoney Fork Member of Breathitt Formation (KY*)


Geologic age:

Middle Pennsylvanian (Moscovian; Westphalian C; Atokan)*


Type section, locality, area and/or origin of name:

Type section: exposures above a strip bench about 350 m southeast of KY Highway 1201 at head of Red Bird Creek, approx. 4.8 km southwest of the community of Beverly, Lat. 36 deg. 53 min. 46 sec. N., Long. 83 deg. 33 min. 36 sec. W., Beverly 7.5-min quadrangle, Bell Co., southeastern KY. Named from settlement of Stoney Fork, about 8 km south of type section, Balkan 7.5-min quadrangle, Bell Co., southeastern KY (Ping and Rice, 1979).


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).