Introduction to Landforms - Earth's Interior
  • tectonic processes - Earth's moving plates
    • converging plates - Cascades, Sierra Nevada
    • diverging - Red Sea and African Rift Valley

  • gradational process - widdling down mountains and canyons
    • Eastern U.S. and Appalacian Mtns.,
    • Grand Canyon - both uplift and cutting down

  • depositional process, filling in valleys and lowlands, seas
    • Mississippi Valley
    • California Central Valley

 

Structure of Earth

Composition of the Earth's Crust



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