Harpers Formation

(Chilhowee Group) - greenish-gray phyllite, with interbeds of fine-grained quartzite.
State West Virginia
Name Harpers Formation
Geologic age Cambrian
Lithologic constituents
Metamorphic > Metasedimentary > Metaclastic > Phyllitegreenish-gray phyllite
Metamorphic > Metasedimentary > Metaclastic > Quartzitewith interbeds of fine-grained quartzite.
Comments Thickness: Northeastern 1200 ft, Southeastern - Chilhowee Group 1200 ft (estimate only).

Cardwell, D.H., Erwin, R.B., and Woodward, H.P., 1968 (slightly revised 1986), Geologic Map of West Virginia: West Virginia Geological and Economic Survey, Map 1, East Sheet, scale 1:250,000.

NGMDB product
Counties Jefferson