Merrimack Group, Eliot Formation, Calef Member

Black phyllite at western contact of the Eliot Formation.
State New Hampshire
Name Merrimack Group, Eliot Formation, Calef Member
Geologic age Ordovician? - Silurian?
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Phyllite
Comments Part of the Nashoba-Casco-Miramichi Terrane (Merrimack Trough).
References
NGMDB product
Counties Rockingham - Strafford