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National Geologic Map Database

Geologic Unit: Robinson

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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).