Electrical conductivity of the major upper mantle minerals: a review

T. Katsura, T. Yoshino, G. Manthilake, T. Matsuzaki

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    The electrical conductivity of the major upper mantle minerals, namely, olivine, wadsleyite and ringwoodite, is reviewed in this paper. There are mainly three electrical conduction mechanisms for three upper mantle minerals: hopping, ionic and proton conductions. The charge carriers for these conduction mechanisms are an electron hole in Fe ion, a vacancy in Mg site, and a proton, respectively. Hopping conduction is the most essential conduction mechanism for the major upper mantle minerals. Because ionic conduction has high activation energy, it becomes a dominant conduction mechanism only at high temperatures. Proton conduction contributes at relatively low temperatures. If the mantle minerals contain large amount of water (more than 0.1 wt.%), proton conduction can be a dominant conduction mechanism, even at high temperatures.

    Original languageEnglish
    Pages (from-to)1139-1145
    Number of pages7
    JournalRussian Geology and Geophysics
    Volume50
    Issue number12
    DOIs
    Publication statusPublished - Dec 2009

    Keywords

    • electrical conductivity
    • olivine
    • ringwoodite
    • transition layer
    • upper mantle
    • wadsleyite

    ASJC Scopus subject areas

    • Geophysics
    • Geology

    Fingerprint

    Dive into the research topics of 'Electrical conductivity of the major upper mantle minerals: a review'. Together they form a unique fingerprint.

    Cite this