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National Geologic Map Database

Geologic Unit: Harriman

Usage:

Harriman Shale Member of Lykins Formation (CO*)


Geologic age:

Permian*


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

Jefferson Co., north-central CO, where typically developed and well exposed. Named from Harriman irrigation canal, [in sec. 1, T. 5 S., R. 70 W., and sec. 6, T. 5 S., R. 69 W., Morrison 7.5-min quadrangle, Jefferson Co.], which receives water from Bear Creek at town of Morrison (LeRoy, 1946).


AAPG geologic province:

Denver 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 ([ ]).