Granitic gneiss of Chittenden Intrusive Suite (?) (VTY3Agg;0)

Light-gray, coarse-grained, biotite-microcline megacrystic to even-grained granite gneiss closely associated with 1,149- to 1,120-Ma augen gneisses, in the northern part of the Green Mountain massif. Not distinguishable with certainty from older granitoids of the Stratton Mountain Intrusive Suite of the central and southern Green Mountains. Chittenden Intrusive Suite (1,149±8 Ma to 1,119±3 Ma). Mount Holly Complex intrusive rocks. Rocks of the Green Mountain and Lincoln Mountain massifs and eastern domes.

State	Vermont
Name	Granitic gneiss of Chittenden Intrusive Suite (?)
Geologic age	Late Mesoproterozoic
Lithologic constituents	Major Metamorphic > Metasedimentary > ParagneissLight-gray, coarse-grained, biotite-microcline megacrystic to even-grained granite gneiss.
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	Rutland

State

Vermont

Name

Granitic gneiss of Chittenden Intrusive Suite (?)

Geologic age

Late Mesoproterozoic

Lithologic constituents

Major

Metamorphic > Metasedimentary > ParagneissLight-gray, coarse-grained, biotite-microcline megacrystic to even-grained granite gneiss.

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

Rutland