Biotite granite stock and dikes (NHS1b;0)

State	New Hampshire
Name	Biotite granite stock and dikes
Geologic age	Early - Late Silurian
Original map label	S1b
Comments	East Inlet pluton = 430+/-4 U/Pb per NH011, NH012
Primary rock type	granite
Secondary rock type
Other rock types
Lithologic constituents	Major Igneous > Plutonic > Granitic > Granite (Stock or pipe)biotite granite stock and dikes
Map references	Bennett, D. S, , Wittkop, C.A., and Dicken, C.L., 2006 , Bedrock Geologic Map of New Hampshire - A Digital Representation of the Lyons and others 1997 map and ancillary files: U.S. Geological Survey Data Series 215, scale 1:250,000, CD-ROM. [http://pubs.er.usgs.gov/publication/ds215]
Unit 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, 1:250,000, 2 sheets. 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.
Geographic coverage	Coos