Winnipesaukee Tonalite

(Winnipesaukee Quartz Diorite of Billings, 1955) - Gray, massive to foliated tonalite and minor quartz diorite, granodiorite, and granite. Probably coeval with Spaulding Tonalite.
State New Hampshire
Name Winnipesaukee Tonalite
Geologic age Early Devonian
Lithologic constituents
Igneous > Plutonic > Granitic > Tonalite (Pluton)
Igneous > Plutonic > Dioritic > Quartz-diorite (Pluton)
Igneous > Plutonic > Granitic > Granite (Pluton)
Igneous > Plutonic > Granitic > Granodiorite (Pluton)
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. New Hampshire Plutonic Suite: Winnipesaukee Tonalite = 392+/-3 U/Pb per J.N. Aleinikoff, oral commun., Jan.1995.
NGMDB product
Counties Belknap - Carroll - Grafton - Strafford