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Skytop Lane Quarry - Channel-Form Silty Sandstone Facies

Skytop Lane Quarry - Channel-form silty sandstone (CFss) facies; An ephemeral wash channel incised into the paleosols of stable interfluves (argillic oxisol below DNAG card)

Skytop Lane Quarry - Sidney
Located in Delaware County
Image courtesy of Dan Bishuk, Jon Hairabedian, James Ebert


Type: Quarry.

Features: Rare argillic & brecciated oxisols; Coastal-margin processes.

Feature Type: Sedimentology.

Reference: NYS Geological Association Field Trip Guidebook,
75th Annual Meeting 2003; Relationships with Tidally-Influenced Deltaic Deposits
in the Sonyea Group (Frasnian) of Northwestern Delaware County, NY.
For Online Reference Please visit: - www.nysga.net/Guidebooks.html

Quadrangle: Unadilla.

Reason for Designation: An ephemeral wash channel incised into the paleosols of stable interfluves.
The advanced weathering of the oxisol profile is an indicator of great age, with a preliminary estimate of 20-4000 thousand years.
A depositional hiatus such as this has high value with regard to paleoenvironmental reconstruction.
No examples of paleoso/channel form relationships of this kind are known to occur in NYS.