Oct. 14

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Contents

Topics from chapter 14

the basics

  • reflection vs refraction
  • types of waves
    • compressional
    • shear

through Earth's layers

  • see fig. 14.2
  • shadow zones
  • reflections at boundaries
  • determining Earth's layers
    • Moho
  • mantle layers (see fig. 14.6)
  • core-mantle boundary

isostacy

  • why continents stick up above ocean floor
  • see Earth issues 14.1

heat flow

  • conduction through lithosphere
  • convection in mantle and core

seismic tomography

Geodynamo

  • dipole
  • nondipole
  • secular variation
  • magnetic reversals

Paleomagnetism

  • thermoremnant magnetism
  • depositional remnant magnetism
  • magnetic stratigraphy
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