Geologic Unit: Milroy
Milroy Member of Loysburg Formation (PA*)
Milroy Limestone (PA)
Milroy Limestone of Loysburg Group (PA)
Type area: Bellefonte to Pleasant Gap, Nittany Valley, Centre Co., PA (Swartz and others, 1955).
Unit Name History:
First used (Swartz and others, 1955).
Revised (Rones, 1969; Chafetz, 1969).
Overview (Berg and others, 1980).
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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
Database project personnel
Last modified: 15-Jan-2013