USGS Visual Identifier
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Geologic Unit: Moat

Moat Volcanics of the White Mountain Plutonic-Volcanic Suite (NH*)

Jurassic, Middle(?)*
Geologic Province:
New England province*

Areal Extent:

Type Locality:
South Moat Mountain, North Conway 15-min quadrangle, Carroll Co., northern NH. Section exposed from 1,000 ft elev upwards on South Moat trail to Red Ridge (Billings, 1928).

Unit Name History:
[Please note: only the Billings (1928; 1956) and post-1977 references are synopsized here. Billings and Williams (1935) taken from US geologic names lexicon, USGS Bull. 896. 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.]
Named (Billings, 1928).
Revised (M.P. Billings and C.R. Williams, 1935, Geology of Franconia quadrangle, NH, p. 12-13, map).
Areal limits; Age modified; Overview (Billings, 1956).
Age modified (Cady, 1960, 1969; Zartman, 1977; Moench and others, 1984; Hatch and Moench, 1984).
Isotopic dating (Eby and others, 1992).
Areal limits; Age modified; Isotopic dating (Moench and others, 1995).
NH State Geol. Map usage; Age modified; Isotopic dating (Lyons and others, 1997).

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