Deep-Sea Submersible Vessel Aids Scientists in Exploring the Bottom of the Giant Lakes.

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    • Subject Terms:
      GREAT Lakes (North America); UNITED States; ONTARIO
    • Abstract:
      The article reports on the use of deep-sea submersible vessels in exploring the bottom of the Great Lakes. Discoveries made by researchers on the bottom of Great Lakes would force changes in their understanding of the lakes. The bottom of the lake, once believed to be a smooth bottom, actually appeared more like a "moonscape."