How light element addition can lower core liquid wave speeds

G. Helffrich*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

20 Citations (Scopus)

Abstract

Sound speeds in liquid mixtures are governed by an interplay between the properties of their end-members. The mixture's bulk modulus and density are each affected by end-member volumes and how those end-members mix. Particularly non-intuitive effects can arise when end-member mixing volumes are non-ideal, even mildly so. Non-ideality could also arise in metallic liquids of the Earth's outer core and exhibit some counterintuitive effects, whose origin is explained here.

Original languageEnglish
Pages (from-to)1065-1070
Number of pages6
JournalGeophysical Journal International
Volume188
Issue number3
DOIs
Publication statusPublished - Mar 2012

Keywords

  • Body waves
  • Composition of the core
  • Equations of state

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