Melting-induced stratification above the Earth’s inner core due to convective translation

  title={Melting-induced stratification above the Earth’s inner core due to convective translation},
  author={T. Alboussi{\`e}re and R. Deguen and M. Melzani},
  • T. Alboussière, R. Deguen, M. Melzani
  • Published 2010
  • Geology, Physics, Medicine
  • Nature
  • In addition to its global North–South anisotropy, there are two other enigmatic seismological observations related to the Earth’s inner core: asymmetry between its eastern and western hemispheres and the presence of a layer of reduced seismic velocity at the base of the outer core. This 250-km-thick layer has been interpreted as a stably stratified region of reduced composition in light elements. Here we show that this layer can be generated by simultaneous crystallization and melting at the… CONTINUE READING
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