Mineral Resources On-Line Spatial Data
Mineral Resources > Online Spatial Data > Geology > by state > Massachusetts
|Name||Massive to weakly foliated, pink and gray, fine- to medium-grained biotite granite|
|Original map label||Pgr|
|Comments||Part of Merrimack Belt (Silurian, Devonian and Pennsylvanian Rocks)|
|Primary rock type||granite|
|Secondary rock type||pegmatite|
|Other rock types|
Igneous > Plutonic > Granitic > Leucocratic-granitic > Pegmatitecommonly contains pink magnetite-bearing pegmatite
Igneous > Plutonic > Granitic > GraniteMassive to weakly foliated, pink and gray, fine- to medium-grained biotite granite.
Unpublished Digital Geologic Map of Massachusetts received from Rudi Hon at Boston College in 1998.
Zen, E-An (ed.), Goldsmith, R. (comp.), Ratcliffe, N.M. (comp.), Robinson, P. (comp.), Stanley, R.S. (comp.), Hatch, N.L., Jr., Shride, A.F., Weed, E.G.A., Wones, D.R., 1983, Bedrock Geologic Map of Massachusetts: U.S. Geological Survey, Reston, VA, scale 1: 250,000.
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