Unicoi Formation

Sequence of gray feldspathic sandstone, arkose, conglomerate, graywacke, siltstone and shale; greenish amygdaloidal basalt flows near middle and base. Thickness 2,000 to 5,000 feet.
State Tennessee
Name Unicoi Formation
Geologic age Cambrian
Lithologic constituents
Major
Sedimentary > Clastic > Conglomerate
Sedimentary > Clastic > Sandstone
Sedimentary > Clastic > Sandstone > Arkose
Minor
Sedimentary > Clastic > Siltstone
Sedimentary > Clastic > Sandstone > Graywacke
Sedimentary > Clastic > Mudstone > Shale
Incidental
Igneous > Volcanic > Mafic-volcanic > Basalt
Comments East sheet
References

Greene, D.C., and Wolfe, W.J., 2000, Superfund GIS - 1:250,000 Geology of Tennessee, USGS, (geo250k).

Hardeman, W.D., Miller, R.A., and Swingle, G.D., 1966, Geologic Map of Tennessee: Division of Geology, Tennessee Department of Environment and Conservation, 4 sheets, scale 1:250,000

NGMDB product
Counties Carter - Cocke - Greene - Johnson - Sullivan - Unicoi - Washington