Department of Environmental Conservation

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Sheetz Quarry - Thick-Thin Alternations are Observed

Thick-thin alternations are observed in couplet bundle thicknesses on trough foresets

Sheetz Quarry - Unadilla
Located in Delaware County
Image courtesy of Dan Bishuk, Jon Hairabedian, and James Ebert

Type: Quarry.

Features: Non-marine to marine transition of the Catskill Clastic Wedge;
Rare ripple cross-lamination; sparse fossils(Sphenotus, fish plates, plant fragments)

Feature Type: Stratigraphic

Quadrangle: Unadilla

Reason for Designation: The suspected oxisol profile at the Steele Residence Quarry is
not known to occur outside this study area in NYS.The oxisol is believed to be unique within NYS
because development of large, long-lived interfluve areas where tidal processes dominated has not
been documented elsewhere in the state. Cattarugus Magnafacies rocks of this kind have not been
described elsewhere in NYS. Sedimentary structures are displayed in dramatic fashion.