Carboniferous alkali feldspar granite (muscovite accessory mineral) (MEC1b(m);0)

State	Maine
Name	Carboniferous alkali feldspar granite (muscovite accessory mineral)
Geologic age	Carboniferous
Original map label	C1b(m)
Comments	U - Unmetamorphosed
Primary rock type	granite
Secondary rock type
Other rock types
Lithologic constituents	Major Igneous > Plutonic > Granitic > Granitemuscovite-biotite granite U - Unmetamorphosed
Map references	Digital bedrock data downloaded from Maine Office of GIS in September 2005 from http://apollo.ogis.state.me.us/catalog/catalog.asp?state=2&extent=cover#bedrock Bedrock units table (publication date 11/15/2002) downloaded from same site. Permission to redistribute these data granted by Dr. Robert Marvinney, State Geologist of Maine, in September 2006. [http://apollo.ogis.state.me.us/catalog/catalog.asp?state=2&extent=cover#bedrock]
Unit 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. Aleinikoff, J., 1984, pers. communication, in Moench and others, 1982. Hayward, J.A., and Gaudette, H.E., 1984, Carboniferous age of the Sebago and Effingham plutons, Maine and New Hampshire: Geol. Soc. Amer., Abs. with Prog., v. 16, p. 22. Brookins, D.G., and Hussey, A.M., II, 1978, Rb-Sr ages for Casco Bay Group and other rocks from the Portland-Orrs Island area, Maine: Geol. Soc. Amer., Abs. with Prog., v. 10, p. 34.
Geographic coverage	Androscoggin - Cumberland - Oxford - York