Usage:
Javelina Formation of Tornillo Group (TX)
Javelina Member of Tornillo Formation of Chilicotal Group (TX)
Geologic age:
Late Cretaceous (Maastrichtian)*
Type section, locality, area and/or origin of name:
Type section: exposed between the Park [Big Bend National Park] road and Tule Mountain, Brewster Co., southwestern TX. Named from Javelina Creek in northeastern part of Tornillo Flat, Big Bend National Park, Brewster Co., southwestern TX (Maxwell and Hazzard, 1967).
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 ([ ]).