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Tectonic Evolution of the Southern Appalachian Mountains—300 Million Years Ago

diagram iapetus ocean completely closes

300 Million Years Ago—Iapetus Ocean Completely Closes. The Southern Appalachians develop as the African portion of Gondwanaland crashes in, forming the supercontinent of Pangea.

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illustrations above modified from “Parks and Plates: The Geology of our National Parks, Monuments and Seashores,” by Robert J. Lillie, New York, W. W. Norton and Company, 298 pp., 2005, www.amazon.com/dp/0134905172.

Public domain:Full Granting Rights

Image

Geologic Resources Division, Code: GRD

NPS.gov Collection

11/26/2019

11/26/2019

Monday, February 3, 2020 12:01:18 PM

Monday, February 3, 2020 12:01:18 PM

diagram iapetus ocean completely closes@10x.jpg

Wednesday, November 27, 2019 12:26:51 AM

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187.8 kB

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