Devonian granite

Biotite granite
State Maine
Name Devonian granite
Geologic age Devonian
Lithologic constituents
Major
Igneous > Plutonic > Granitic > Granitebiotite granite; U - Unmetamorphosed
Comments U - Unmetamorphosed
Stratigraphic units includes plutons: 10 - Katahdin (ME079, ME081, ME082, ME083); 82 - Baring; 84 - Red Beach (ME079, ME116); 86 - Meddybemps (ME079, ME116); 89 - Marshfield; 90 - Jonesboro (ME079); 92 - Great Wass Island.
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.

Denning, A.S., and Lux, D.R., 1985, 40Ar-39Ar incremental release dating of two igneous bodies in the Katahdin batholith, north-central maine: Geol. Soc. Amer., Abs. with Prog., v. 17, p. 15.

Loiselle, M., Hon, R., and Naylor, R.S., 1983, Age of the Katahdin batholith, Maine: Geol. Soc. Amer., Abs. with Prog., v. 15, p. 146.

Naylor, R.S., Hon, R., and Fullagar, P.D., 1974, Age of the Katahdin batholith, Maine: Geol. Soc. Amer., Abs. with Prog., v. 16, p. 59.

Spooner, C.M., and Fairbairn, H.W., 1970, Relation of radiometric age of granitic rocks near Calais, Maine, to the time of the Acadian orogeny: Maine: Geol. Soc. Amer., Bull., v. 81, p. 3663-3670.

NGMDB product
Counties Franklin - Hancock - Oxford - Penobscot - Piscataquis - Washington