Usage:
Robinson Limestone Member of Eagle Valley Evaporite (CO*)
Robinson Limestone Member of Minturn Formation (CO*)
Geologic age:
Middle Pennsylvanian (Desmoinesian)*
Type section, locality, area and/or origin of name:
Named for fact it forms the ore-bearing horizon of Robinson mine, in Tenmile district, [Summit Co.], CO (Emmons, 1882; Koschmann and Wells, 1946).
AAPG geologic province:
Eagle 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 ([ ]).