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National Geologic Map Database

Geologic Unit: Sugar River

Usage:

Sugar River Limestone of Trenton Group (NY)


Subunits:

Rathbun Member (NY).


Geologic age:

Middle Ordovician


Type section, locality, area and/or origin of name:

Type section: Palisades on Sugar River, from lower contact above rippled ledge at top of main fall above New York Central RR bridge, to upper contact with Denley Limestone type section 0.4 km above bridge, Leyden Twp., Lewis Co., north-central NY (Kay, 1968).


AAPG geologic province:

Appalachian basin


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).