Usage:
No current usage.
(†Manitoba Group (subsurface of ND,MT?,SD?) not used in the U.S. See Dawson Bay and Souris River.)
Geologic age:
Middle to Late Devonian (Givetian to Frasnian)
Type section, locality, area and/or origin of name: (See Canadian Lexicon)
Probably named from province of Manitoba, Canada (Baillie, 1953).
Representative section (subsurface): depth-interval 3,845 to 4,355 ft (1,172 to 1,327.4 m), Imperial Davidson No. 1 well, in LSD 16-8-27-1 West of 3rd Meridian (W3M), Saskatchewan, Canada. [From CSPG Western Canada Lexicon]
AAPG geologic province:
Williston 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 ([ ]).