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Showing 1 to 1 of 1 for “"Geology--North Dakota--Lake Agassiz area; Geology"”.
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Stratigraphy of offshore sediment of Lake Agassiz, North Dakota
<p>Lake Agassiz occupied the Red River Valley between about 13,800 and 9,000 years ago. The Late Wisconsinan ice sheet that covered the Red River Valley retreated far enough to expose the drainage divide in northern South Dakota and south-central Minnesota sometime after 14,000 B.P. and meltwater …