William A. Thomas, Hudnall Professor Emeritus of Geology at the University of Kentucky, and Visiting Scientist at the Geological Survey of Alabama, will present the talk "Tectonic History of Eastern North America" as part of the McClung Museum's 50th anniversary lecture series.
Thomas will present the talk "Eastern North American through Two Supercontinent Cycles," in which he will trace 750 million years of geologic processes that ended in the landscape we see today. The Appalachian mountain chain that stretches almost 3,000 miles is one of the most prominent manifestations of this history. Today's Appalachians are, however, the result of the third mountain building activity that occurred 300-260 million years ago. The story Thomas will tell will be one of the breakup of super continents, the collision of continents producing mountains, erosion and deposition of sediment producing the limestone and shale, and finally, the shaping of the ridges, valleys, and mountains we see today.
The lecture series is part of the celebration of the museum's fiftieth anniversary, and is free and open to all.
The series brings in worldwide experts to speak on topics related to the museum's collections and exhibitions on archaeology, Egyptology, decorative arts, the American Civil War, geology, and natural history.
Wednesday, 18 September, 2013
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Free and open to all
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