Two-mica granite

Found in northern New Hampshire.
State New Hampshire
Name Two-mica granite
Geologic age Devonian - Mississippian
Lithologic constituents
Igneous > Plutonic > Granitic > Granite (Pluton)two-mica granite
Comments Long Mountain pluton of New Hampshire Plutonic Suite: 350 (approximate) U/Pb per NH014.

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.

Harrison, T.M., Aleinikoff, J.N., and Compston, William, 1987, Observations and controls on the occurence of inherited zircon in Concord-type granitoids, New Hampshire: Geochimica et Cosmochimica Acta, v. 51, p. 2549-2558.

NGMDB product
Counties Coos