Decker Formation through Poxono Island Formation, undivided

In descending order: Decker Formation--gray calcareous sandstone having lenses of calcareous conglomerate, siltstone, and shale, and lenses of limestone and dolomite (in Stroudsburg area, includes calcareous shale, limestone, and dolomite of Rondout Formation at top); Bossardville Limestone--gray argillaceous limestone and dolomitic limestone; Poxono Island Formation--thin-bedded dolomite, limestone, and shale; red shale in lower part. This undivided succession is equivalent to Keyser, Tonoloway, and Wills Creek (part) Formations of central Pennsylvania.
State Pennsylvania
Name Decker Formation through Poxono Island Formation, undivided
Geologic age Silurian
Lithologic constituents
Major
Sedimentary > Carbonate > Dolostone (Lens)Decker Formation--lenses of limestone and dolomite (in Stroudsburg area, includes calcareous shale, limestone, and dolomite of Rondout Formation at top); Bossardville Limestone--gray argillaceous limestone and dolomitic limestone; Poxono Island Formation--thin-bedded dolomite.
Minor
Sedimentary > Clastic > Siltstone (Lens)Decker Formation
Sedimentary > Clastic > Mudstone > Shale (Lens)Decker Formation; Poxono Island Formation--thin-bedded shale; red shale in lower part.
Sedimentary > Carbonate > Limestone (Lens)Decker Formation--lenses of limestone and dolomite (in Stroudsburg area, includes calcareous shale, limestone, and dolomite of Rondout Formation at top); Bossardville Limestone--gray argillaceous limestone and dolomitic limestone; Poxono Island Formation--thin-bedded dolomite, limestone.
Sedimentary > Clastic > Sandstone (Calcareous)Decker Formation--gray calcareous sandstone
Incidental
Sedimentary > Clastic > Conglomerate (Lens, Calcareous)Decker Formation--lenses of calcareous conglomerate
References

Berg, T.M., Edmunds, W.E., Geyer, A.R., and others, compilers, 1980, Geologic map of Pennsylvania: Pennsylvania Geological Survey, 4th ser., Map 1, 2nd ed., 3 sheets, scale 1:250,000.

Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, Miles, C.E., and Whitfield, T.G., compilers, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map, scale 1:250,000.

NGMDB product
Counties Carbon - Monroe - Schuylkill