Rhyolite to dacite

Massive to flow-banded rocks of greenschist metamorphic grade in northeastern Wisconsin; virtually undeformed.
State Wisconsin
Name Rhyolite to dacite
Geologic age Early Proterozoic
Lithologic constituents
Major
Metamorphic > Metaigneous > Metavolcanic > Metarhyolite (Greenschist)Massive to flow-banded rocks of greenschist metamprohic grade in northeastern Wisconsin; virtually undeformed
Metamorphic > Metaigneous > Metavolcanic > Metadacite (Greenschist)Massive to flow-banded rocks of greenschist metamprohic grade in northeastern Wisconsin; virtually undeformed
Comments Pembine-Wausau terrane
References
NGMDB product
Counties Marinette