Devonian gabbro - ultramafic rocks

Devonian gabbro - ultramafic rocks
State Maine
Name Devonian gabbro - ultramafic rocks
Geologic age Devonian
Lithologic constituents
Major
Igneous > Plutonic > Gabbroic > GabbroU - Unmetamorphosed
Igneous > Plutonic > UltramaficU - Unmetamorphosed
Comments U - Unmetamorphosed
Stratigraphic units includes plutons: 37 - Sugarloaf (ME089); 44 - Plumbago.
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.

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 - Oxford - Somerset