Devonian granite (porphyritic texture)

Biotite granite undivided
State Maine
Name Devonian granite (porphyritic texture)
Geologic age Devonian
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Graniteporphyritic biotite granite; U - Unmetamorphosed
Comments U - Unmetamorphosed
Stratigraphic units includes plutons: 13 - Whitney Cove (Bottle Lake Complex) (ME086, ME087, ME079); 29 - Flagstaff Lake Complex (ME089)
References

Osberg, P.H., Hussey, A.M., and Boone, G.M., 1985, Bedrock geologic map of Maine: Maine Geological Survey, Dept. of Conserv., scale 1:500,000.

Faul, H., Stern, T.W., Thomas, H.H., and Elmore, P.L.D., 1963, Ages of intrusion and metamorphism in the northern Appalachians: Am. Jour. Sci., v. 261, 9. 1-19.

Ayuso, R.A., 1982, Geology of the Bottle Lake complex, Maine: Ph.D. dissert., Virginia Polytechnic Inst. and State Univ., Blacksburg.

Ayuso, R.A., and Arth, J.G., 1983, Comparisons of U-Pb zircon, Rb-Sr whole rock, and K-Ar ages in Devonian plutons of the Bottle Lake complex, Maine: Geol. Soc. Amer., Abs. with Prog., v. 15, p. 146.

Zartman, R.E., Hurley, P.M., Kruger, H.W., and Giletti, B.J., 1970, A Permian disturbance of K-Ar radiometric ages in New England: its occurrence and causes: Geol. Soc. Amer., Bull., v. 81, p. 3359-3374.

NGMDB product
Counties Franklin - Hancock - Penobscot - Somerset - Washington