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Pinnacle Formation - metabasalt and volcaniclastic rocks, undifferentiated

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Largely carbonate-epidote-albite-chlorite (±actinolite) greenstones. Cover rocks of the Lincoln Mountain massif and northwestern flank of the Green Mountain massif.
State Vermont
Name Pinnacle Formation - metabasalt and volcaniclastic rocks, undifferentiated
Geologic age Cambrian and Neoproterozoic
Lithologic constituents
Major
Metamorphic > Metaigneous > GreenstoneLargely carbonate-epidote-albite-chlorite (±actinolite) greenstones.
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 Addison - Chittenden - Franklin