USGS Visual Identifier
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Geologic Unit: Lebanon

Lebanon Granite of Oliverian Plutonic Suite (NH*)

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

Areal Extent:

Type Locality:
Not designated. Named from village of Lebanon, southwestern Grafton Co., west-central NH (Hitchcock, 1908).

Unit Name History:
Named (Hitchcock, 1908).
Redescribed as Lebanon Group; Age modified (Chapman, 1939).
Age modified; Assigned to Oliverian plutonic series; Overview (Billings, 1955).

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
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Last modified: 15-Jan-2013