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GEOL 108 - Crises of a Planet Lab 1 - Plate Tectonics. Sept. 3 - 7, 2012. Department of Earth Sciences. ABOUT ME Name: Benjamin Gross Website: http:// dornsife.usc.edu / mbg Phone: 213-740-6743 Email: martinbg@usc.edu Office hours (ZHS 300): 12:30-2:30, by appointment. ABOUT ME | 2.

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slide1

GEOL 108 - Crises of a PlanetLab 1 - Plate Tectonics

  • Sept. 3 - 7, 2012

Department of Earth Sciences

slide2

ABOUT ME

  • Name: Benjamin Gross
  • Website: http://dornsife.usc.edu/mbg
  • Phone: 213-740-6743
  • Email: martinbg@usc.edu
  • Office hours (ZHS 300): 12:30-2:30, by appointment

ABOUT ME | 2

Department of Earth Sciences

slide3

SYLLABUS

  • Available on Blackboard
  • Grading
    • Lab is worth 25% of your overall course grade
    • 11 labs - lowest x 5 points each = 50 pts max
    • 11 quizzes - lowest x 10 points each = 100 pts max
    • Which means quizzes are worth 2/3 of the lab and exercises are 1/3…. or quizzes are worth 17% of your overall grade and exercises 8%.

SYLLABUS | 3

Department of Earth Sciences

slide4

LAB PREP

  • Lab exercises available on Blackboard
    • Print it out, read it, and bring it with you
    • If you neglect to bring it you will lose 2 points
    • Note: you are welcome to work with a partner on the exercises but all answers must be your own. Simply copying your partner’s work will be considered cheating.
  • Bring pencil, calculator, and your printed lab exercise every week

SYLLABUS | 4

Department of Earth Sciences

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LAB ATTENDANCE

  • Attendance in your assigned section is mandatory
    • Email me ASAP if you must miss a lab so we can place you in an alternate section
    • Legit excuses include serious illness or official university event and require a note
    • Poor excuses include non-required events, volunteer work, or sleeping in
  • Unexcused absence will result in a grade of 0 for both the exercise and quiz

SYLLABUS | 5

Department of Earth Sciences

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LAB EXERCISES

  • All exercises must be completed during a scheduled lab period
  • Graded on effort and completion
  • Show your completed lab to me, I will briefly review it, and return it
  • Use your lab to study for next week’s quiz

SYLLABUS | 6

Department of Earth Sciences

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LAB QUIZZES

  • Quizzes will cover material from the previous week
  • Begin promptly at the start of class
  • If you are late and miss the quiz you get a 0
  • Expect quizzes to take 10-15 minutes
  • Combination of formats, but primarily short answer

SYLLABUS | 7

Department of Earth Sciences

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TERM PAPER

  • 3 pages of text, double spaced, 11 or 12 point font
  • Topic is “science behind, and/or the political and social implications and impacts of a current natural disaster”
  • Due Nov. 27th
  • Details will be forthcoming

SYLLABUS | 8

Department of Earth Sciences

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LAB ETIQUETTE

  • No food or drink in lab
  • Leave the room if you must use your phone
  • During a quiz, phone ≠ calculator
  • Be nice
  • Pretend to love rocks

SYLLABUS | 9

Department of Earth Sciences

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LAB 1 - TECTONICS - KEY CONCEPTS

  • Types of plate boundaries and their locations
  • Hot spot volcanism: definition and direction of plate movement
  • Methods of determining plate velocity

PLATE TECTONICS | 10

Department of Earth Sciences

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PLATE TECTONICS

  • Movement of lithospheric plates over the asthenosphere.
  • Plates make contact at plate boundaries
  • Divergent, convergent, or transform boundary
  • Active vs. passive continental margin

PLATE TECTONICS | 11

Department of Earth Sciences

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SUPERCONTINENT FORMATION

  • Plates move over time, occasionally forming supercontinents

http://www.ucmp.berkeley.edu/geology/anim1.html

PLATE TECTONICS | 12

Department of Earth Sciences

slide13

PLATE MOVEMENT BY GPS

PLATE TECTONICS | 13

Department of Earth Sciences

slide14

ESTIMATING PLATE MOTION

  • Estimating sea-floor spreading rates (v=distance/time)
    • Distance: measured between edges of continents
    • Time: Age of oceanic crust closest to continent

PLATE TECTONICS | 14

Department of Earth Sciences

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HOT SPOT VOLCANISM

  • Volcanic islands form over hot spots
  • Hot spots do not move, the plate moves above it
  • Use the distance between islands and difference in rock ages to calculate plate speed

For ananimation of hot spot volcanismgo to http://www.wwnorton.com/college/geo/animations/hot_spot_volcanoes.htm

PLATE TECTONICS | 15

Department of Earth Sciences