1. Mineral Resources
  2. Online Spatial Data
  3. Geology
  4. by state
  5. New Hampshire

Winnipesaukee Tonalite

XML
JSON
(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
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