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National Geologic Map Database

Geologic Unit: Ella

Usage:

Ella Dolomite (ID*)
Ella Dolostone (ID*)
Ella Marble (ID*)


Geologic age:

Middle Ordovician*


Type section, locality, area and/or origin of name:

Type section: high on north wall of Salmon River Canyon, 1.6 km west of Clayton, southeastern part of sec. 23, T. 11 N., R. 17 E., Custer Co., ID (Hobbs and others, 1968).
Named from old Ella Mine, near Clayton, Custer Co., ID (Patton, 1948).


AAPG geologic province:

Idaho Mountains province*
Snake River 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 ([ ]).