Usage:
Blue Gate Member of Mancos Shale (UT*)
Blue Gate Shale Member of Mancos Shale (UT*)
Geologic age:
Late Cretaceous (Turonian to Campanian)*
Type section, locality, area and/or origin of name:
Blue Gate. Gilbert's (1877) name for the part of the Fremont River valley between North and South Caineville Mesas (see Hunt and others, 1953, USGS Prof. Paper 228, p. 21, pl. 2).
AAPG geologic province:
Paradox 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 ([ ]).