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National Geologic Map Database

Geologic Unit: Bead Mountain

Usage:

Bead Mountain Limestone Member of Belle Plains Formation of Wichita Group (TX*)
Bead Mountain Formation of Albany Group (TX-notably south of Wichita River)


Subunits:

FORMATION STATUS (alphabetical) --all in TX: Beaverburk Limestone [unranked], Rendham Limestone [unranked].


Geologic age:

Early Permian (Cisuralian; Leonardian)*


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

Named from Bead Mountain, [south of Gulf, Colorado and Santa Fe RR, Lat. 31 deg. 44 min. 41 sec. N., Long. 99 deg. 35 min. 06 sec. W., Bead Mountain 7.5-min quadrangle], Coleman Co., Colorado River region, central TX (US geologic names lexicons, USGS Bull. 896, 1200).


AAPG geologic province:

Bend arch*


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 ([ ]).