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National Geologic Map Database

Geologic Unit: McElroy

Usage:

No current usage.
(Rocks of †McElroy Formation of Jackson Group (TX*) reallocated to Manning and Whitsett Formations of Jackson Group. See Manning and Whitsett.)


Geologic age:

early Tertiary (late Eocene)


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

Type locality: cuts along Farm Road 705, in southern Augustine Co., about 8 or 10 mi west and southwest of McElroy; road connects Brookeland with State Highway 147 to San Augustine and traverses eastern edge of Angelina National Forest, [northeastern TX] (Eargle, 1959).
Original type locality [no longer exists]: RR cut just north of station of McElroy, a small town north of Brookeland, on Santa Fe RR, in Sabine Co., [northeastern TX] (Ellisor, 1931; Plummer, 1933).


AAPG geologic province:

East Texas basin
Gulf Coast basin


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 ([ ]).