USGS Visual Identifier
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Geologic Unit: Benner

Usage:
Benner Limestone of Black River Group (PA)
Benner Formation (PA*)

Age:
Ordovician, Middle*
Geologic Province:
Appalachian basin*
Areal Extent:
PA(sc)*

Type Locality:
Type section: in Pennsylvania RR cut at Union Furnace, Huntingdon Co., PA. Named from Benner Twp., Centre Co., where recognized in section near Bellefonte (Kay, 1944).

Unit Name History:
Named (Kay, 1944).
Overview (Wood, 1980; Berg and others, 1980).

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