Pinney Hollow Formation - metafelsite member (VTCAZphf;0)

Pinney Hollow Formation - metafelsite member

White to pale-green, laminated to massive epidote-calcite-muscovite-quartz-albite metarhyolitic gneiss or schist; is a volcanic or volcaniclastic rock. U-Pb zircon age of 571±5 Ma, no. 21 (Walsh and Aleinikoff, 1999). Contains purplish-gray feldspathic quartzite. Cover rocks of Green Mountain anticlinorium.

State	Vermont
Name	Pinney Hollow Formation - metafelsite member
Geologic age	Cambrian and Neoproterozoic
Lithologic constituents	Major Metamorphic > Schist > Quartz-feldspar-schistWhite to pale-green, laminated to massive epidote-calcite-muscovite-quartz-albite metarhyolitic gneiss or schist; is a volcanic or volcaniclastic rock. Metamorphic > Metaigneous > OrthogneissWhite to pale-green, laminated to massive epidote-calcite-muscovite-quartz-albite metarhyolitic gneiss or schist; is a volcanic or volcaniclastic rock. Minor Metamorphic > Metasedimentary > Metaclastic > QuartziteContains purplish-gray feldspathic quartzite.
References	Ratcliffe, N.M., Stanley, R.S., Gale., M.H., Thompson, P.J., and Walsh, G.J., 2011, Bedrock geologic map of Vermont: U.S. Geological Survey Scientific Investigations Map 3184, 3 sheets, scale 1:100,000. https://pubs.er.usgs.gov/publication/sim3184
NGMDB product	NGMDB product page for 96860
Counties	Windsor

Pinney Hollow Formation - metafelsite member

Ratcliffe, N.M., Stanley, R.S., Gale., M.H., Thompson, P.J., and Walsh, G.J., 2011, Bedrock geologic map of Vermont: U.S. Geological Survey Scientific Investigations Map 3184, 3 sheets, scale 1:100,000.