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National Geologic Map Database

Geologic Unit: Ahloso

Usage:

Ahloso Member of Caney Shale (OK*-recognized locally in northern Arbuckle Mountains)
Originally misspelled Ahlosa.


Geologic age:

Middle Mississippian (Visean; late Meramecian)*


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

Type locality: in NE/4 sec. 14, T. 2 S., R. 7 E., Johnston Co., OK. Named from Ahloso village at junction of Highways 99 and 3, about 3 mi southeast of Ada, in sec. 14, T. 3 N., R. 6 E., Pontotoc Co., OK (Elias, 1956).
Type section: measured section D (beds 10 to 18), in sec. 14, T. 2 S., R. 7 E., Johnston Co., OK (Elias and Branson, 1959).


AAPG geologic province:

South Oklahoma folded belt*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 ([ ]).