Electrical Conductivity of Lower Mantle Materials produced by Laser Heating in the Diamond-anvil Cell.

• Peyronneau J.

  Institut de Physique du Globe

• Visocekas F.

  Institut de Physique du Globe

• Poirier J. P.

  Institut de Physique du Globe

• Duba A.

  Lawrence Livermore National Laboratory

Bibliographic Information

Other Title

• Electrical Conductivity of Lower Mantle

Abstract

We report recent experimental results on the electrical conductivity of Earth's mantle materials synthesised and measured in a laser heated diamond anvil cell. This results show an effect of oxygen partial pressure on the conductivity and on the chemistry of the high pressure phases synthesised in the DAC. Previous treatments under controlled fO2 conditions have a significant effect for natural olivines, attributed to the presence of a small amount of nickel. No effect was observed for pure synthetic olivines. The gas trapped in the sample during the closure of the cell has an influence on the produced material. Our results on the electrical conductivity of perovskite and magnesiowustite are in good agreement with recent geomagnetic data.

Journal

• The Review of High Pressure Science and Technology

  The Review of High Pressure Science and Technology 7 15-17, 1998

  The Japan Society of High Pressure Science and Technology

Keywords

• electrical conductivity
• oxygen fugacity
• perovskite
• magnesiowustite

Details

• CRID: 1390001204381771136
• NII Article ID: 10002688579
• NII Book ID: AN10452913
• DOI: 10.4131/jshpreview.7.15
• ISSN: 13481940
• ISSN: 0917639X
• NDL BIB ID: 4493825
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4493825
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed