USGS Visual Identifier
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Geologic Unit: Vanport

Usage:
Vanport Limestone of Allegheny Group (PA*)
Vanport Limestone Member (after Phalen, 1912) of Breathitt Formation (KY*)
Vanport limestone (informal, unranked) of Allegheny Formation (OH,WV)
For informal usage, the rank or lithologic term should not be capitalized.

Age:
Pennsylvanian, Middle*



Geologic Province:
Appalachian basin*



Areal Extent:
PA*
KY*
OH*
WV

Type Locality:
Vanport, Beaver Co., western PA (White, 1878).

Unit Name History:
Named (White, 1878).
Overview (Clapp, 1905) [From GNC index card files; not synopsized].
Revised; Redescribed; Extended into OH (Flint, 1951).
Extended into WV (Nace and Bieber, 1958).
Revised (Williams, 1960).
Extended into KY (Price and others, 1962).
Revised (Carswell and Bennett, 1963).
Informal status in KY (Rice, 1977).
PA State geol. map usage (Berg, 1980).
KY State geol. map usage (McDowell and others, 1981).
Overview (Rice and others, 1994a).
Areal limits; Revised (Rice and others, 1994b).

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