Usage:
Cisneros Basalt Member of Hinsdale Formation (NM)
Geologic age:
late Tertiary (Pliocene)
Type section, locality, area and/or origin of name:
Named from Cisneros Park, [in secs. 7 and 8, T. 29 N., R. 8 E., Broke Off Mountain and San Antonio Mountain 7.5-min quadrangles, Rio Arriba Co., Carson National Forest area, central northern NM] (Barker, 1958).
AAPG geologic province:
San Juan 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 ([ ]).