Thermal and electrical conductivity of iron at Earth’s core conditions

  title={Thermal and electrical conductivity of iron at Earth’s core conditions},
  author={M. Pozzo and C. Davies and D. Gubbins and D. Alf{\`e}},
  • M. Pozzo, C. Davies, +1 author D. Alfè
  • Published 2012
  • Chemistry, Medicine, Physics
  • Nature
  • The Earth acts as a gigantic heat engine driven by the decay of radiogenic isotopes and slow cooling, which gives rise to plate tectonics, volcanoes and mountain building. Another key product is the geomagnetic field, generated in the liquid iron core by a dynamo running on heat released by cooling and freezing (as the solid inner core grows), and on chemical convection (due to light elements expelled from the liquid on freezing). The power supplied to the geodynamo, measured by the heat flux… CONTINUE READING
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