U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Magoffin

Usage:

Magoffin Member of /Four Corners Formation of Breathitt Group (KY)
Magoffin Member of Breathitt Formation (KY*)
Magoffin Member of Redoak Mountain Formation (TN*)
Magoffin Member of Wise Formation (VA*)

[Four Corners Formation conflicts with nomenclature guidelines (NACSN, 1983, 2005, 2021).]


Geologic age:

Middle Pennsylvanian (early Moscovian; Westphalian B; middle Atokan)*


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

Named from typical exposures, notably at head of Sycamore Branch of Oakley Creek, in southern Magoffin Co., eastern KY (Morse, 1931).


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 ([ ]).