lec 5 - GE105 Continents Adrift Continents Adrift 11...

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Unformatted text preview: GE105 Continents Adrift Continents Adrift 11 Earth’s magnetic field and polar wander Lecture 1. Introduction and course overview. Lecture 2. Distance and time. Lecture 3. Planet building and Earth’s layered structure. Lecture 4. Wegener’s Continental Drift hypothesis. Lecture 5. Earth’s magnetic field and polar wander. Lecture 6. Reversals and sea floor spreading. Lecture 7. Plate tectonics – spreading and rifting. Lecture 8. Plate tectonics – collision. Lecture 9. The wave that shook the world (movie) Lecture 10. Earthquakes I. Lecture 11. Earthquakes II. Lecture 12. Volcanoes and mantle convection Lecture 13. Final Exam (FEBRUARY 17, 2011) GE105 GE105 Continents Adrift Continents Adrift 22 The magnetic field as shield against “space weather” Earth’s magnetic field protects us against the solar wind Solar particles (and radiation from distant stellar explosions) follow the magnetic field lines and are directed towards the poles aurora (1 AU) GE105 GE105 Continents Adrift Continents Adrift 33 Size matters The smaller you are, the faster you cool …....
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This note was uploaded on 02/17/2011 for the course GEOSCI 105 taught by Professor Ritsema during the Winter '11 term at University of Michigan.

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lec 5 - GE105 Continents Adrift Continents Adrift 11...

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