Newbury Volcanic Complex

Micrographic rhyolite, intrudes DSnu, DSna, DSnl.
State Massachusetts
Name Newbury Volcanic Complex
Geologic age Lower Devonian and Upper Silurian
Lithologic constituents
Major
Igneous > Volcanic > Felsic-volcanic > Rhyolitemicrographic rhyolite
Comments Part of Milford-Dedham Zone (Tertiary and Older Rocks)
References
NGMDB product
Counties Essex