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National Geologic Map Database

Geologic Unit: Cross Mountain

Usage:

Cross Mountain Formation (TN*)


Subunits:

(alphabetical) --all in TN*: Lake City member (informal), Low Gap Sandstone Member, McGhee Gap member (informal), Tub Spring Sandstone Member.


Geologic age:

Middle Pennsylvanian (Moscovian; Westphalian; late Atokan)*


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

Type locality: Cross Mountain, Lake City quadrangle, Anderson Co., eastern TN. Section is on road leading to top [VABM 3534] of Cross Mountain, [Lake City 7.5-min quadrangle, 1952 ed., Anderson Co., eastern TN] (Wilson and others, 1956).


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 ([ ]).