Rowe Schist

Fine- to medium-grained, well-layered and foliated amphibolite; epidote-rich layers locally abundant. Includes its typical Chester Amphibolite Member at Chester, Massachusetts.
State Massachusetts
Name Rowe Schist
Geologic age Lower Ordovician and Cambrian
Lithologic constituents
Major
Metamorphic > AmphiboliteFine- to medium-grained, well-layered and foliated amphibolite; epidote-rich layers locally abundant.
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.
References
NGMDB product
Counties Berkshire - Franklin - Hampden - Hampshire