Abstract
The Whitehall Formation (Cambro-Ordovician) of eastern New York State consists of peritidal lithofacies which were deposited on an intermittently exposed shelf. Alternating phases of progradation, emergence, and transgression produced a complex facies mosaic. Freshwater leaching of subaerially exposed carbonates is inferred to have produced horsetail stylolites, solution breccias, neomorphic spar, laminated crusts composed of micritized dolomite, and millimeter-sized idiotopic dolomite poikilotopes. Evidence in the lower Whitehall strata suggests the former presence of evaporites. Sparry calcite, lutecite, and megaquartz replaced the original sulfate minerals.
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