Usage:
Ratlum Mountain Schist (CT*)
Ratlum Mountain Member of Satans Kingdom Formation (CT)
Geologic age:
Early(?) Ordovician*
Type section, locality, area and/or origin of name:
North of Diters Road on Ratlum Mountain, Collinsville quadrangle, northwestern CT (Stanley, 1964).
Reference localities: in Satans Kingdom and along gorge of Farmington River, south of Route 44 (Satans Kingdom access area) (Stanley, 1964).
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 ([ ]).