Geologic Unit: Utica
Utica Shale (NY*,MI*,PA*,IN*,OH*)
Utica Formation (PA)
Type area: well exposed in the Starch Factory Creek to the east of Utica. Named from City of Utica, Oneida Co., NY (Ruedemann, 1912).
Flat Creek Member (NY) and Indian Castle Member (NY).
Unit Name History:
Named (Emmons, 1842).
Overview (Ruedemann, 1925).
Utica divided into Nowadaga, Loyal Creek, and Holland Patent zones (Ruedemann and Chadwick, 1935) [From GNU records (USGS DDS-6; Reston GNULEX); complete bibliographic citation and synopsis not given].
Overview (Kay, 1937; Wilmarth, 1938).
Revised (Berry, 1970) [From GNU records (USGS DDS-6; Reston GNULEX); complete bibliographic citation and synopsis not given].
Areal limits; Overview (Bergstrom and Mitchell, 1990).
Areal limits; Age modified (Ryder, 1992).
Age modified (Ryder and others, 1992).
Members named, correlated, figure (Goldman and others, 1994).
Overview (Frey, 1995).
Note: If you need more information, please contact Nancy Stamm (firstname.lastname@example.org).
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