Usage:
Sewemup Member of Moenkopi Formation (CO*,UT*)
Geologic age:
Early to Middle(?) Triassic*
Type section, locality, area and/or origin of name:
Type section: east side of Sinbad Valley, in sec. 15, T. 49 N., R. 19 W., Mesa Co., southwestern CO. Named from Sewemup Mesa which forms east wall of Sinbad Valley (Shoemaker and Newman, 1959).
AAPG geologic province:
Piceance 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 ([ ]).