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Glaciers and Geography

Glaciers and Geography. Take-Away Points. The Pleistocene glaciers profoundly affected world geography and history The Missouri and Ohio Rivers were created because the glaciers blocked existing rivers The Great Lakes were excavated by the glaciers

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Glaciers and Geography

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  1. Glaciers and Geography

  2. Take-Away Points • The Pleistocene glaciers profoundly affected world geography and history • The Missouri and Ohio Rivers were created because the glaciers blocked existing rivers • The Great Lakes were excavated by the glaciers • The English Channel was formed because the glaciers blocked existing rivers • The ice affected migration of humans into the Americas

  3. Northern Hemisphere Ice Caps

  4. Drainage Diversion, Missouri River, North Dakota

  5. Mid-Pleistocene Drainage in the Midwest

  6. Pre-Pleistocene Drainage in the Midwest?

  7. Ice Retreat, Canada

  8. Glacial Retreat, Europe

  9. Pluvial Lakes, Southwest U.S.

  10. Pleistocene Rivers, Indonesia

  11. Excavation of Great Lakes Basins

  12. Occasional Re-Advances

  13. Northeast Tilting of Crust

  14. Lakes in Hudson Bay Basin

  15. Sea Floods Hudson’s Bay

  16. The Present North Sea

  17. Pleistocene Western Europe

  18. Pre-Pleistocene Western Europe

  19. Siberian Super-Rivers?

  20. Coming to America

  21. Take-Away Points • The Pleistocene glaciers profoundly affected world geography and history • The Missouri and Ohio Rivers were created because the glaciers blocked existing rivers • The Great Lakes were excavated by the glaciers • The English Channel was formed because the glaciers blocked existing rivers • The ice affected migration of humans into the Americas

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