Antietam Formation

(Chilhowee Group) - gray to white quartzite, sandstone and quartz-schist; thick-bedded, and resistant; contains Scolithus.
State West Virginia
Name Antietam Formation
Geologic age Cambrian
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Quartzitegray to white quartzite; thick-bedded, and resistant; contains Scolithus
Minor
Sedimentary > Clastic > Sandstone
Incidental
Metamorphic > Schistquartz-schist
Comments Thickness: Northeastern 550 ft, Southeastern - Chilhowee Group 1200 ft (estimate only).
References

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