USGS Visual Identifier
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Geologic Unit: New Haven

New Haven Arkose of Newark Supergroup (CT*,MA*)

Triassic, Late*
Carnian, late*
Jurassic, Early*
Geologic Province:
New England province*
Hartford basin*
Pomperaug basin*

Areal Extent:

Type Locality:
Several designated to show facies variations, all in New Haven Co., CT: (1) west slope of West Rock Ridge; (2) north end of Whitney Avenue, Hamden; (3) Hartford Turnpike next to New Haven Country Club; (4) quarries of Fair Haven; (5) Roaring Brook; (6) Hanover Pond south of Meriden (Krynine, 1950).

Unit Name History:
Named New Haven Arkose of Newark Group (Krynine, 1950).
Overview (Schnabel, 1960).
Extended into Massachusetts (Colton and Hartshorn, 1966).
Age (Cornet, 1977).
MA State Geol. Map usage (Zen and others, 1983).
Assigned to the Newark Supergroup (Robinson and Luttrell, 1985).
CT State Geol. Map usage (Rodgers, 1985).

Note: If you need more information, please contact Nancy Stamm (
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