USGS Visual Identifier
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Geologic Unit: Moretown

Moretown Formation (VT*,MA*)
Moretown Member of Missisquoi Formation (VT*)

Ordovician, Early
Ordovician, Middle*
Geologic Province:
New England province*

Areal Extent:

Type Locality:
Occurrences in eastern Moretown Twp., on eastern slope of Northfield Mountain, Montpelier quadrangle, central VT (Cady, 1956).

Unit Name History:
[Please note: only the Zen and others (1983) and post-1984 references include synopses here. The remaining references have yet to be added from the GNC index card files. Until then, feel free to contact us if you would like complete bibliographic citations.]
First used (Osberg, 1952).
Named (Cady, 1956).
Revised (Albee, 1957).
Rank reduced to member of Missisquoi Formation (Konig, 1961).
VT State Geol. Map usage (Doll, 1961).
Age modified, Coburn Hill Volcanic Member named (Cady and others, 1963).
Whetstone Hill Member named (Ern, 1963).
Extended into MA (Hatch and others, 1966).
Age modified (Stanley and others, 1982).
MA State Geol. Map usage (Zen and others, 1983).
Rank reduced (Hepburn and others, 1984).
Revised; Areal limits; Age modified (Stanley and Hatch, 1988).
Overview (Aleinikoff and Karabinos, 1990).
Areal limits (Thompson, 1990).
Age modified (Karabinos and Williamson, 1994).
Contacts revised; Age modified (Ratcliffe, in press).

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