Rock Stream Formation

Rock Stream Formation
Stratigraphic range: Frasnian
TypeFormation
Unit ofSonyea Group
UnderliesCashaqua Shale
OverliesPulteney shale
Lithology
PrimarySiltstone
OtherShale
Location
RegionNew York
CountryUnited States

The Rock Stream Formation (or Rock Stream siltstone) is a geologic formation in New York. It preserves fossils dating back to the Devonian period.

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