USGS Visual Identifier
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Geologic Unit: Hanson Creek

Usage:
Hanson Creek Formation (ID*,NV*)

Age:
Ordovician, Middle*
Ordovician, Late*
Silurian, Early*
Geologic Province:
Great Basin province*
Idaho Mountains province*

Areal Extent:
ID*
NV*


Type Locality:
"Typical" exposures occur on west side of Roberts Creek Mountain, Eureka Co, NV. Derivation of name not stated by author, but probably named from Pete Hanson Creek (Merriam, 1940).

Subunits:
Combs Canyon Dolomite Member (NV*).

Unit Name History:
Named (Merriam, 1940).
Overview (Dover, 1983).

Note: If you need more information, please contact Nancy Stamm (nstamm@usgs.gov).
Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses ().

Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]).






U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
URL http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html
Database project personnel
Last modified: 15-Jan-2013