Tadmuck Brook Schist

Andalusite phyllite and sillimanite schist, partly sulfidic; local quartzite in upper part.
State Massachusetts
Name Tadmuck Brook Schist
Geologic age Silurian?, Ordovician, or Proterozoic Z
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Phylliteandalusite phyllite and sillimanite schist, partly sulfidic
Metamorphic > Schistandalusite phyllite and sillimanite schist, partly sulfidic
Minor
Metamorphic > Metasedimentary > Metaclastic > Quartzitelocal quartzite in upper part
Comments Part of Nashoba Zone (Silurian and Older Rocks)
References
NGMDB product
Counties Middlesex - Worcester