Gile Mountain Formation - thick-bedded micaceous feldspathic quartzite member (VTDgq;0)

Gile Mountain Formation - thick-bedded micaceous feldspathic quartzite member

Brown to gray, noncarbonaceous quartz-mica schist and feldspathic quartzite in beds 50 cm to 5 m thick; gradational to Dgqs through interbedding of phyllite beds and decrease in thickness of quartzite beds. Part of the Connecticut Valley Trough.

State	Vermont
Name	Gile Mountain Formation - thick-bedded micaceous feldspathic quartzite member
Geologic age	Lower Devonian
Lithologic constituents	Major Metamorphic > Schist > Mica-schistBrown to gray, noncarbonaceous quartz-mica schist. Metamorphic > Metasedimentary > Metaclastic > QuartziteFeldspathic 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	Caledonia - Essex - Orange - Windsor

Gile Mountain Formation - thick-bedded micaceous feldspathic quartzite 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.