Geologic Unit: North River
North River igneous suite [informal] (VT*)
Considered informal until formally published. The rank or lithologic term should not be capitalized.
Blue Mountain facies, Whitneyville facies, West Halifax Trondhjemite (VT*)
Unit Name History:
Named (Ratcliffe and Armstrong, in press).
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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