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Pine Hill Road - Tidal Rhythmite Couplets

Pine Hill Road - Tidal rhythmite couplets consisting of fine sand alternating with very fine sand and silty mud drapes

Pine Hill Road - Tidal Rhythmites
Located in Delaware County
Image courtesy of Dan Bishuk, Jon Hairabedian, James Ebert


Type: Roadside.

Features: Rare and unique exposure of tidal rhythmites;
Large caliber, Archanodon-like burrows; Spreites.
Tidal rhythmite couplets consisting of fine sand alternating with very fine sand and silty mud drapes.

Feature Type: Stratigraphic.

Reference: Dan Bishuk, Jon Hairabedian, James Ebert.

Quadrangle: Unadilla.

Reason forDesignation: Tidal rhythmites are rare in New York State.
These deposits are unusual for their occurrence of larger caliber, Archanodon-like burrows.
These large caliber vertical burrows commonly display spreites.
These burrows are important because they are the subject of an ongoing debate for over several decades.