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Showing 1 to 1 of 1 for “"Stratigraphic--Jurassic; Geology--North Dakota"”.
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Jurassic stratigraphy of the southern two-thirds of North Dakota
<p>Jurassic rocks in the southern two-thirds of North Dakota consist mainly of limestone, shale, anhydrite, and salt of the Piper Formation; shaly limestone, calcareous and non-calcareous shales of the Rierden Formation; shale and sandstone of the Swift Formation; and, at the top, non-marine shale …