SC 208: How The Earth Was Made – Class presentations available on “New York State and New York City, and Its Environs” and “America’s Ice Age and The Great Lakes”

These classes are about the forces and processes that have shaped landscapes.  Concepts that were introduced in earlier OLLI classes like plate tectonics and the rock cycle will be briefly reviewed relative to understanding the past.  The presenters will augment DVDs from a series How the Earth Was Made from the History Channel with further information.  Ample time for questions and discussion will be provided.   Further details on what will be included in each class will be provided via KIT mail as the date approaches.

Presenters/Developers: OLLI Science Committee Members Gil Brenner, John Bush, and Gary Oberts

Friday, March 8:  Scotland and the Loch Ness Monster

Scotland’s rocks record events from about 3 billion years ago to the present.  For about 300 million years what is now Scotland was firmly attached to what is now North America.  As Loch Ness’ geology has become understood it seems there is no longer room there for “Nessie.”

Friday, March 15: New York City and Its Environs: New York City and its surroundings tell an amazing story of change through geologic time from one billion years ago to the present.  The rocks tell of shifting and colliding continents, a volcanically active landscape, and glaciers that covered almost all of what is now New York in a thick layer of ice.

Class Presentation: Geology of New York State and New York City and Its Environs

Rift and Fault Block Basins Remnants of the Breakup of the Super Continent of Pangea

Friday, March 22: The Ice Age and the Great Lakes

Class Presentation: America’s Ice Age and The Great Lakes

The last major ice age in North America yielded ice sheets that were as much as a mile thick and covered much of North America. The deposits they left have become part of our rich agricultural heritage, provided a major drinking water supply, and have created a landscape filled with large wetlands and lakes, among them the Great Lakes, which could be substantially drained within another 12,000 years as the ever-eroding Niagara Falls reach Lake Erie.

Americas Ice Age and The Great Lakes

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