The Nature of Things Geologic Journey: Great Lakes (Part 1 of 5)

The Nature of Things Geologic Journey: Great Lakes (Part 1 of 5)

This episode of the Geologic Journey series tells the story of the dramatic changes in the geology and landscape of the vast central area of North America that only in very recent geologic history takes the form of five great interconnected freshwater lakes. We find the roots of a long vanished mountain range that once rivalled the Himalayas, explore the remains of a tropical salt-water sea, and trace the story of a sudden massive flood that drowned vast areas of land. From moraines, to kettles, to drumlins, to tarn lakes, and Niagara Falls, the topography and geology of the Great Lakes region is unparalleled, strikingly beautiful and a place of wild contrasts.

  • 2007
  • 00:44:40
  • 9-12
  • Added on: 06/14/2013
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