Cussewago Formation

Cussewago Formation
Stratigraphic range: Devonian
TypeFormation
UnderliesBedford Shale
OverliesRiceville Shale
Thicknessup to 100'
Lithology
PrimarySandstone
OtherShale
Location
RegionPennsylvania
CountryUnited States
Type section
Named forCusswago Valley
Named byWhite (1881, p. 94-96)

The Cussewago Formation is a geologic formation found Pennsylvania, Ohio and West Virginia.[1] This formation represents a paleo-river delta containing sandstone as well as siltstone and shale.[2]

References

  1. ^ "Geolex — Cussewago". ngmdb.usgs.gov. Retrieved 2026-02-26.
  2. ^ SCHINER, GEORGE R.; KIMMEL, GRANT E. (1972). "Mississippian Stratigraphy of Northwestern Pennsylvania" (PDF). GEOLOGICAL SURVEY BULLETIN. 1331-A: A9–A11 – via US Geological Survey.


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