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Rowe Schist

Rowe Schist - Light-green to light-bluish-gray schist having thin granular quartz lenses and lamellae. Kyanite and staurolite typical at higher grades.
State Massachusetts
Name Rowe Schist
Geologic age Lower Ordovician and Cambrian
Comments Part of Rowe-Hawley Zone (Ordovician and Older Rocks) Despite uncertainties, age of Rowe is probably only slightly, if at all, older than earliest Cambrian and almost certainly no younger than Early or possibly Middle Ordovician (Stanley and Hatch, 1988) per MA014.
Primary rock type schist
Secondary rock type
Other rock types
Lithologic constituents
Major
Metamorphic > SchistLight-green to light-bluish-gray schist having thin granular quartz lenses and lamellae. Kyanite and staurolite typical at higher grades.
Map references
Unpublished Digital Geologic Map of Massachusetts received from Rudi Hon at Boston College in 1998.
Unit references
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.
Stanley, R.F. and Hatch, N.L., Jr., 1988, The pre-Silurian geology of the Rowe-Hawley zone, Chapter A, IN Hatch, N.L., Jr., ed., The bedrock geology of Massachusetts: U.S. Geological Survey Professional Paper, 1366-A, 39 p.
Counties Berkshire - Franklin - Hampden - Hampshire