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 (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 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 ([ ]).