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National Geologic Map Database

Geologic Unit: Lake Neosho

Usage:

Lake Neosho Shale Member of Altamont Limestone of Marmaton Group (KS*)
Lake Neosho Shale Member of Altamont Formation of Marmaton Group (IA*,MO*)
Lake Neosho Shale Member of Altamont Formation of /Appanoose subgroup [informal] of Marmaton Group (MO)

["Subgroup" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). Appanoose subgroup considered informal and should not be capitalized.]


Geologic age:

Middle Pennsylvanian (Desmoinesian)*


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

Type section: in SW/4 sec. 23, T. 30 S., R. 20 E., Neosho Co., KS (Jewett, 1941).


AAPG geologic province:

Cherokee basin*
Forest City 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 ([ ]).