TY - JOUR
T1 - Electrical conductivity of the major upper mantle minerals
T2 - a review
AU - Katsura, T.
AU - Yoshino, T.
AU - Manthilake, G.
AU - Matsuzaki, T.
N1 - Funding Information:
Acknowledgements. Part of this paper was presented at the international symposium “Lithosphere Petrology and Origin of Diamond” held in Novosibirsk in June, 2008. We thank Yu. Paly’anov and other conveners for giving us an opportunity to psrticipate in the symposium and inviting us to write this paper for this special volume. This work was supported by Grant-in-Aids for Scientific Research, No. 13440164 and 18740280 to TK and TY, respectively, from the Japan Society for Promotion of Science. It was also supported by the COE-21 program of the Institute for Study of the Earth’s Interior, Okayama University.
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2009/12
Y1 - 2009/12
N2 - 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.
AB - 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.
KW - electrical conductivity
KW - olivine
KW - ringwoodite
KW - transition layer
KW - upper mantle
KW - wadsleyite
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U2 - 10.1016/j.rgg.2009.11.012
DO - 10.1016/j.rgg.2009.11.012
M3 - Article
AN - SCOPUS:70449780589
VL - 50
SP - 1139
EP - 1145
JO - Russian Geology and Geophysics
JF - Russian Geology and Geophysics
SN - 1068-7971
IS - 12
ER -