Pinnacle Formation - feldspathic greenstone member (VTCAZpvf;0)

Pinnacle Formation - feldspathic greenstone member

Olive-drab-weathering, dark-green, fine-grained greenstone with remnant plagioclase feldspar phenocrysts up to 1.5 cm in diameter. Cover rocks of the Lincoln Mountain massif and northwestern flank of the Green Mountain massif.

State	Vermont
Name	Pinnacle Formation - feldspathic greenstone member
Geologic age	Cambrian and Neoproterozoic
Lithologic constituents	Major Metamorphic > Metaigneous > GreenstoneOlive-drab-weathering, dark-green, fine-grained greenstone with remnant plagioclase feldspar phenocrysts up to 1.5 cm in diameter.
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	Chittenden - Franklin

Pinnacle Formation - feldspathic greenstone 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.