Hornblende granite to granodiorite

Part of Lost Nation pluton of northwestern New Hampshire.
State New Hampshire
Name Hornblende granite to granodiorite
Geologic age Late Ordovician
Lithologic constituents
Igneous > Plutonic > Granitic > Granodiorite (Pluton)hornblende granite to granodiorite
Igneous > Plutonic > Granitic > Granite (Pluton)hornblende granite to granodiorite
Comments Part of the Highlandcroft Plutonic Suite (Late Ordovician) - Pink to green rocks containing epidote, sericite, and chlorite. Found as stocks metamorphosed to greenschist facies and commonly sheared; coeval with Oliverian Plutonic Suite.
NGMDB product
Counties Coos