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National Geologic Map Database

Geologic Unit: Caddo Creek

Usage:

Caddo Creek Formation of Canyon Group (TX*)
(†Caddo Creek Formation not used by TX Geol. Survey. Rocks reallocated to Colony Creek Shale and Home Creek Limestone of Canyon Group. See also Colony Creek and Home Creek.)


Subunits:

(alphabetical) --all in TX*: Colony Creek Shale Member, Home Creek Limestone Member.


Geologic age:

Late Pennsylvanian (Virgilian)*


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

Named from Caddo Creek, a tributary of Brazos River in Stephens Co., Brazos River region, TX (Plummer and Moore, 1922).


AAPG geologic province:

Bend arch*
Fort Worth syncline*


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 ([ ]).