Usage:
Vidrio Formation (TX*)
Vidrio Limestone (TX*)
Vidrio Limestone Member of Word Formation (TX*)
Geologic age:
middle Permian (Guadalupian; Wordian)*
Type section, locality, area and/or origin of name:
This formation is most conspicuous part of Glass Mountains, Marathon region, [Brewster Co.], western TX. Vidrio is Spanish word for glass and is often used among local Mexican population as a name for the mountains (Udden and others, 1916).
AAPG geologic province:
Permian basin*
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 ([ ]).