Boylston Schist

Carbonaceous phyllite and schist, locally sulfidic; quartzite; calc-silicate beds.
State Massachusetts
Name Boylston Schist
Geologic age Silurian or Ordovician
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Phyllitecarbonaceous phyllite and schist, locally sulfidic
Metamorphic > Schist > Calc-silicate-schistcarbonaceous phyllite and schist, locally sulfidic
Minor
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Metamorphic > Metasedimentary > Calc-silicate-rock
Comments Part of Merrimack Belt (Silurian, Devonian and Pennsylvanian Rocks)
References
NGMDB product
Counties Worcester