Serpentinite and/or talc rock

Interpreted as tectonic slivers.
State Massachusetts
Name Serpentinite and/or talc rock
Geologic age Precambrian to Phanerozoic
Lithologic constituents
Major
Metamorphic > Metaigneous > SerpentiniteSerpentinite and/or talc rock - Interpreted as tectonic slivers.
Comments Part of Rowe-Hawley Zone (Ordovician and Older Rocks); also part of Milford-Dedham Zone (Tertiary and Older Rocks); age uncertain
References
NGMDB product
Counties Berkshire - Essex - Franklin - Hampden - Hampshire