State | New Hampshire |
---|---|
Name | Winnipesaukee Tonalite |
Geologic age | Early Devonian |
Lithologic constituents |
Major
Igneous > Plutonic > Granitic > Tonalite (Pluton)
Minor
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. |
References | Lyons, J.B., Bothner, W.A., Moench, R.H., and Thompson, J.B., Jr., 1997, Bedrock Geologic Map of New Hampshire: Reston, VA, U.S. Geological Survey Special Map, 2 sheets, scale 1:250,000.https://ngmdb.usgs.gov/Prodesc/proddesc_37338.htm Billings, M.P., 1955, Geologic map of New Hampshire: Washington, D.C., U.S. Geological Survey, scale 1:250,000. |
NGMDB product | |
Counties | Belknap - Carroll - Grafton - Strafford |