Rowe Schist - amphibolite and greenstone member

Predominantly very dark green to black, finely foliated biotite-plagioclase amphibolite to dark-green to light- greenish-gray, chlorite-plagioclase-ankerite greenstone and interlayered gray biotitic feldspathic volcaniclastic rock and feldspathic quartzite. Amphibolites have transitional basalt to MORB compositions; greenstones have MORB compositions. Rocks of the Rowe-Hawley Zone. Allochthonous cover sequence east of the Green Mountains: rift and drift stage metasedimentary and metavolcanic rocks and tectonic inclusions of ultramafic rocks. Rowe Schist: Mapped in southern Vermont where the uppermost part is continuous with amphibolites, schists, and feldspathic schists of the Rowe Schist of Massachusetts. These upper units are continuous with rocks of the Stowe Formation to the north. Units in the middle and lowermost structural positions (above the Hoosac Formation) are in a similar structural position as rocks of the Ottauquechee and Pinney Hollow Formations, although structural continuity and correlations with the Ottauquechee and Pinney Hollow Formations are uncertain owing to extensive structural duplication by thrust faulting and folding.
State Vermont
Name Rowe Schist - amphibolite and greenstone member
Geologic age Cambrian and Neoproterozoic?
Lithologic constituents
Major
Metamorphic > Amphibolite (Amphibolite)Very dark green to black, finely foliated biotite-plagioclase amphibolite.
Metamorphic > Metaigneous > Greenstone (Amphibolite)Dark-green to light- greenish-gray, chlorite-plagioclase-ankerite greenstone.
Minor
Igneous > Volcanic > Felsic-volcanicInterlayered gray biotitic feldspathic volcaniclastic rock.
Metamorphic > Metasedimentary > Metaclastic > QuartziteFeldspathic quartzite.
References
NGMDB product
Counties Windham - Windsor