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Pinney Hollow Formation - chloritoid-rich

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Chloritoid-rich rocks appear gritty owing to distributed porphyroblasts of chloritoid. Unit is locally albitic and contains minor beds of quartzite. Cover rocks of Green Mountain anticlinorium.
State Vermont
Name Pinney Hollow Formation - chloritoid-rich
Geologic age Cambrian and Neoproterozoic
Lithologic constituents
Major
Metamorphic > SchistChloritoid-rich rocks appear gritty owing to distributed porphyroblasts of chloritoid. Unit is locally albitic.
Minor
Metamorphic > Metasedimentary > Metaclastic > 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
Counties Rutland - Windsor