Usage:
Carthew Member of Altyn Formation of Belt Supergroup (MT-recognized locally on east side of Glacier National Park area, Glacier Co.)
(†Carthew Member abandoned by the Canada Geol. Survey. Is same as Altyn Formation and Waterton Formation. See Altyn and Waterton.)
Geologic age:
Mesoproterozoic
Type section, locality, area and/or origin of name: (See Canadian Lexicon)
Eastern cliffs of Cameronian Mountain, above Cameron Creek, Waterton Lakes National Park, [Lat. 49 deg. 03 min. N., Long. 113 deg. 57 min. W.] Alberta, Canada [Carthew Creek shown on pl. 1 in Waterton Lakes National Park] (Fenton and Fenton, 1937; Lat/Long from CSPG Western Canada Lexicon).
AAPG geologic province:
Northern Rocky Mountain region*
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 ([ ]).