The Schoharie Formation is a Devonian formation found in outcrop in New York, New Jersey, Pennsylvania, and Virginia. Also known as the "Schoharie Grit" in central New York, due to the "gritty" consistency of the formation.[1]

Schoharie Formation
Stratigraphic range: Devonian
TypeFormation
Sub-units
  • Gumaer Island Mbr
  • Aquetuck Mbr
  • Saugerties Mbr
  • Carlisle Center Mbr
UnderliesOnondaga Limestone
Lithology
PrimarySiltstone, sandstone
OtherLimestone
Location
Region New York

 Pennsylvania

 Virginia
CountryUnited States
Type section
Named forSchoharie, NY

Description

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The Schoharie is made up of finer grained siliciclastics and calcareous material, with the formation becoming less calcareous towards the top.[2]

References

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  1. ^ Fisher, Donald W. (9 December 2023). "DEVONIAN STRATIGRAPHY AND PALEOECOLOGY IN THE CHERRY VALLEY, NEW YORK REGION" (PDF). Otto's Website. Retrieved 9 December 2023.
  2. ^ Bartholomew, Alex; Ver Straeten, Charles (7 August 2023). "Lower and Middle Devonian Strata of New York State: Genesee River Valley to the Hudson Valley" (PDF). Geneseo State University of New York. Retrieved 9 December 2023.