Usage:
Casco Bay Group (ME*)
Subunits:
(alphabetical) --all in ME: Cape Elizabeth Formation*, Cushing Formation*, Diamond Island Formation*, Jewell Formation*, Mackworth Formation, Scarboro Formation*, /Sebascodegan formation (informal), Spring Point Formation*, Spurwink Limestone*.
Geologic age:
Neoproterozoic to early Paleozoic*
Type section, locality, area and/or origin of name:
Named from development in and around Casco Bay, Cumberland Co., southwestern ME. (Katz, 1917)
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 ([ ]).