Porphyritic biotite granodiorite

Found in Mt. Cube quadrangle.
State New Hampshire
Name Porphyritic biotite granodiorite
Geologic age Early - Late Devonian
Lithologic constituents
Igneous > Plutonic > Granitic > Granodiorite (Pluton)porphyritic biotite granodiorite
Comments Part of the New Hampshire Plutonic Suite (Late to Early Devonian) - Includes synkinematic and postkinematic granitoids related to the Acadian orogeny. Ages range from 410 to 365 Ma.
NGMDB product
Counties Grafton