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Lecture Notes for GEOS 5014 - Earth System History with Xiao at Virginia Tech (VT)

Notes Information

Material Type:Note 1
Professor:Xiao
Class:GEOS 5014 - Earth System History
Subject:Geosciences
University:Virginia Polytechnic Institute And State University
Term:Fall 2008
Keywords:
  • Catastrophism
  • Interrupting
  • Relative Time
  • Unconformity
  • Horizontally
  • Age of the Earth
  • Age of Earth
  • Index Fossils
  • Uniformitarianism
  • Driving Forces
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Sample Document Text

Review Sheet: Part 1 Geological Time Scale: 1) all eons and eras, 2) Phanerozoic periods, 3) Cenozoic epochs, and 4) the numerical age of the Proterozoic/Phanerozoic, Paleozoic/Mesozoic, and Mesozoic/Cenozoic boundaries. Uniformitarianism and catastrophism ⇒ Uniformism: Lyell said that present processes acted the same way through all time and with about the same intensity ⇒ Catastrophism: believed in the changing of earth through major violent catastrophes Neptunism and Plutonism ⇒ Neptunism: A.G. Werner the belief that all rocks were formed in the sea because it was believed that the earth started with a universal ocean, which eventually retreated. Because of the great emphasis on the sea for explaining all the crust this theory was given the name “Neptunism” o Was proved wrong because it did not explain the origin of basalt from volcanoes, he did not believed volcanoes were a big part of the creation of earth ⇒ Plutonism: Hutton’s main contribution was his idea of earth as a machine with volca...

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