Lectures 16-25

Lecture 16 | Lecture 17-18 | Lecture 19 | Lecture 20 | Lecture 21 | Lecture 22 | Lecture 23 | Lecture 24 | Lecture 25

Lecture # 16: Geologic Time


  • Why You Should Care

  • Geologic Time: Based on Fossils

  • Proterozoic

  • Paleozoic

  • Mesozoic

  • Cenozoic

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    Lectures # 17-18: Plate Tectonics

  • Why You Should Care
  • A Mobile View of the Earth's Surface
  • The Plates Today and in the Past
  • What Happens at Plate Boundaries
  • Divergent (Ridge) Boundaries
  • Convergent (Subduction) Boundaries
  • Transform Boundaries

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    Lecture # 19: Earth's Atmosphere

  • Why You Should Care
  • Air Circulation
  • Why is the Desert Dry and Hot
  • Atmospheric Cycle
  • Weather (Short Term)
  • Climate (Long Term)
  • Storms

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    Lecture # 20: Earth's Oceans and Water

    • Why You Should Care

    • Hydrologic Cycle: Water moving between repositories

    • Ice Ages

    • Oceans:

    • Currents Move Water / Heat

    • Chemical Cycles

    • (Groundwater in Tucson): Later

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    Lecture # 21: Earth's Rock Cycles

    Why You Should Care

  • The Three Rock Groups:
  • Igneous
  • Metamorphic
  • Sedimentary
    • The Rock Cycle
    • Interpreting Earth History through Rocks

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    Lecture 22: Mass Extinctions

  • How Massive and Why?
  • Why You Should Care - duh
  • What is an Extinction?
    • Biological Classification Scheme
    • What is the Evidence for an Extinction?

    Extinctions over Geologic Time

    • Permian/Triassic (Biggest)
    • Cretaceous/Tertiary (K/T) (Dinosaurs)
    • Pleistocene (Most Recent)

    Possible Causes of Massive Extinctions

    • Terrestrial vs. Non-terrestrial

    Lessons to be Learned:

    • Extinctions are natural, but
    • It takes a LONG time to recovery from massive extinctions

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    Lecture 23: Global Warming, Ozone and the Greenhouse Effect

    Why you Should Care

    Is Global Warming "Bad"?

    Ozone:

  • What it Does

  • The Ozone Hole

  • Good’ versus "Bad" Ozone

    Greenhouse Effect

  • Can't Live without it!
  • What Gases Are Important?
  • Curbing Emissions (science and society)

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    Lecture #24: Water and Floods or Living in the Desert

  • Introduction and Why You Should Care
  • Water Usage in Tucson: an in-class project
  • Flooding the Colorado River and You
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    Lecture # 25: Earthquakes

    I. What is an earthquake?
    II. How do we measure the size of earthquakes?

    Some significant earthquakes

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