USGS Visual Identifier
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Geologic Unit: Pleasant Hill

Usage:
Pleasant Hill Limestone (PA*)
Pleasant Hill Formation (PA)

Age:
Cambrian, Middle*
Geologic Province:
Appalachian basin*
Areal Extent:
PA*

Type Locality:
Pleasant Hill church, 1 mile northwest of Henrietta, in southeast corner of Blair Co., PA (Butts, 1918).

Unit Name History:
Named (Butts, 1918). Age changed (Butts, 1945). Revised (Gray and others, 1960). Overview (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