Oliverian Plutonic Suite - hornblende metagabbro

Dark-green, coarse-grained, well-foliated hornblende-andesine metagabbro. Part of the Bronson Hill arch intrusive rocks.
State Vermont
Name Oliverian Plutonic Suite - hornblende metagabbro
Geologic age Late Ordovician
Lithologic constituents
Major
Metamorphic > Metaigneous > Metaintrusive > MetagabbroDark-green, coarse-grained, well-foliated hornblende-andesine metagabbro.
References
NGMDB product