Jim Pond Formation

Pillow metabasalt member. Lenses within the Hurricane Mountain Formation of northern New Hampshire interpreted as tectonic rafts of Jim Pond Formation.
State New Hampshire
Name Jim Pond Formation
Geologic age Upper Cambrian
Lithologic constituents
Metamorphic > Metaigneous > Metavolcanic > Metabasaltpillow metabasalt
Comments Part of the Central Maine Trough - Variably metamorphosed sedimentary and volcanic rocks of greenschist to granulite facies, locally migmatized. Area includes structural belts between the Monroe fault on the west and the Campbell Hill fault on the east; that is, the Bronson Hill anticlinorium, Piedmont allochthon, Kearsarge-central Maine synclinorium, central New Hampshire anticlinorium, and Rochester-Lebanon (Maine) antiformal synclinorium.
NGMDB product
Counties Coos