Numerical analysis of a mechanism of electrical conductivity of substance in the middle and lower mantle

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概要

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• The method proposed is based on the Arrenius' equation, that links electrical conductivity of solids with an enthalpy of activation, is studied and well-known distributions of temperature, pressure and electrical conductivity in the mantle. Formulas for the quantitative estimation of parameters, that characterize energy state of a lattice of the mantle, are received. Dependence of electrical conductivity on activation energy of free electron or ion, mobility of which has a power dependence on temperature, and of polaron with an exponential dependence on temperature was studied. The analysis of results has reveled that an electrical conductivity in the middle and in the lower mantle is realized by a change of activation energy of a polaron.

• 公益社団法人 日本地震学会、地球電磁気・地球惑星圏学会 、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会の論文

著者

• Abramova D.

  Izmiran 142092 Troitsk

• Porokhova L.

  Scientific-Research Institute of Physics, St. Petersburg State University

• Porokhov D.

  Scientific-Research Institute of Physics, St. Petersburg State University

関連論文

• On the Radial Geoelectrical Structure of the Mid-Mantle from Magnetovariational Sounding Using MAGSAT Data
• Numerical analysis of a mechanism of electrical conductivity of substance in the middle and lower mantle

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