Tuesday, December 11, 2012

Tianna Brown & LaKendra Palmer

Uniformitarianism: the concept that Earth's surface was shaped in the past by gradual processes like erosion, as well as small changes like an earthquake.
18th Century
James Hutton







Catatrophism- (An old doctrine) the concept  that the changes in the earth only resulted from violent or unusual events
19th Century
Georges Cuvier 

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