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Showing 1 to 1 of 1 for “"Stratigraphic--Ordovician; Petrology--North Dakota; Lithofacies--North Dakota"”.
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Depositional environments and paleogeography of the Winnipeg Group (Ordovician), Williston Basin, North Dakota
<p> The Winnipeg Group (Upper Ordovician) unconformably overlies the Deadwood Formation (Cambrian - Lower Ordovician) over most of North Dakota, except in the extreme eastern part, where it lies directly on Precambrian basement rocks. The Winnipeg is conformably overlain by the Red River Formation …