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Large "donuts" on the bottom of Lake Superior have geologic history

Prof. Nigel Wattrus
Prof. Nigel Wattrus

ProfWattrus_040114.mp318.55 MB

Scientists are puzzled by large donut shapes on the deep bottom of Lake Superior. But Prof. Nigel Wattrus  at UMD’s Large Lakes Observatory has a theory. WTIP Jay Andersen spoke with Prof. Wattrus about sediment bathymetry.