Plagioclase-phenocrystic tonalite gneiss

Coarse-grained facies of the Baileys Mills tonalitic gneiss exposed on the northeast flank of the Chester dome. South Londonderry Igneous Suite (Middle and Early Mesoproterozoic) (1,393±9 Ma to 1,309±6 Ma). Mount Holly Complex intrusive rocks. Rocks of the Green Mountain and Lincoln Mountain massifs and eastern domes.
State Vermont
Name Plagioclase-phenocrystic tonalite gneiss
Geologic age Early Mesoproterozoic?
Lithologic constituents
Major
Metamorphic > Metasedimentary > ParagneissCoarse-grained facies of the Baileys Mills tonalitic gneiss.
References
NGMDB product
Counties Windsor