Usage:
Depot Mountain formation [informal] (ME)
Considered informal until formally published. The rank or lithologic term should not be capitalized.
Subunits:
Aquagene tuff member (informal) (Roy, 1980); lower and upper members (Roy, 1989)
Geologic age:
Late Ordovician to early Silurian
Type section, locality, area and/or origin of name:
Partial section exposed at Depot Mountain, and more complete section exposed in Good Brook, 4 mi northeast of Depot Mountain, Depot Lake 15-min quadrangle, Aroostook Co., ME (Roy, 1980).
AAPG geologic province:
New England province
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 ([ ]).