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Class 6a: Introduction to landforms or What goes up must come down

Class 6a: Introduction to landforms or What goes up must come down

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Class 6a: Introduction to landforms or What goes up must come down

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  1. Class 6a: Introduction to landformsorWhat goes up must come down

  2. Landform processes • “The summit of Mt. Everest is marine limestone” (McPhee) • Tectonic forces (uplift) • Gradational processes

  3. Landform processes • Geomorphology • What? • Where? • Why? • So what?

  4. How old is the Earth?

  5. Earth’s layers: crust • “Earth scientists are like dermatologists”

  6. Earth’s layers: mantle

  7. Earth’s layers: core

  8. Rock cycle • What's a rock? • What's a mineral?

  9. Igneous rocks • “Made from fire” • Extrusive: • Intrusive: from cooled magma

  10. Sedimentary rocks • Formed from sediment

  11. Metamorphic rocks • Formed from igneous or sedimentary rocks

  12. Plate tectonics

  13. Plate tectonics

  14. Plate tectonics

  15. Continental shields • Shields: continental cores that haven't changed much

  16. Motion of the plates • Divergence: plates moving apart • Transform: slip-strike

  17. Motion of the plates • Convergence: plates moving together • Ocean-ocean • Land-land collisions

  18. Motion of the plates • Land-ocean

  19. Terranes • Terranes:Bits of continents or islands "docking" with each other