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National Geologic Map Database

Geologic Unit: Leona

Usage:

Leona Formation (TX*)


Geologic age:

Quaternary (Pleistocene)*


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

Type locality first wide terrace of Nueces and Leona Rivers below level of Uvalde Gravel [Uvalde area, Uvalde Co., TX] (Barnes, project director, Geol. Atlas Texas, San Antonio sheet, 1982 ed.).
Named from Leona River, Uvalde and Zavala Cos., southern TX (Hill and Vaughan, 1898).


AAPG geologic province:

Gulf Coast basin*
Ouachita folded belt*


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 ([ ]).