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National Geologic Map Database

Geologic Unit: Passagassawakeag

Usage:

Passagassawakeag Gneiss (ME*)
Passagassawakeag Formation (ME)


Subunits:

Calc-silicate member, Mixer Pond Member (ME)


Geologic age:

Precambrian(?)*
Proterozoic(?)*
Cambrian(?)*
Ordovician(?)*


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

Type area: Outcrops at headwaters of Passagassawakeag River, NC Belfast quadrangle, Waldo Co., ME (Wones, 1974).


AAPG geologic province:

New England province*


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 ([ ]).