Biotite granite stock and dikes

Northernmost New Hampshire.
State New Hampshire
Name Biotite granite stock and dikes
Geologic age Early - Late Silurian
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Granite (Stock or pipe, Dike or sill)biotite granite stock and dikes
Comments East Inlet pluton = 430+/-4 U/Pb per NH011, NH012
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

Lyons, J.B., Aleinikoff, J.N., and Zartman, R.E., 1986, Uranium-thorium-lead ages of the Highland Plutonic Suite, New Hampshire: American Journal of Science, v. 286, p. 489-509.

Eisenburg, R.A., 1981, Chronostratigraphy of metavolcanic rocks and associated intrusive rocks of the Boundary Mountains anticlinorium [abs.]: Geological Society of America Abstracts with Programs, v. 13, p. 131.

NGMDB product
Counties Coos