Early and Early Middle Ordovician Continental Slope Deposition: Shale Cycles and Sandstones in the New York Promontory and Quebec Reentrant Region

This synthesis of the Cambrian through Lower Middle Ordovician in continental slope facies in the Taconian Allochthons proposes three regionally extensive changes in lithology and rock color. The area covered includes Eastern Pennsylvania, Central New Jersey, Eastern New York, Northwestern Vermont, Southern Quebec, and part of Western Newfoundland.