ELECTROMAGNETIC INDUCTION IN AN ASPHERICALLY CONDUCTING MANTLE

被引：1
|
作者：
MOCHIZUKI, E
机构：
[1] Department of Earth and Planetary Physics, Faculty of Science, University of Tokyo, Tokyo
来源：
GEOPHYSICAL JOURNAL INTERNATIONAL | 1993年 / 113卷 / 02期
关键词：
ANISOTROPY; ELECTRIC CONDUCTIVITY; GEOMAGNETISM;
D O I：
10.1111/j.1365-246X.1993.tb00904.x
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The electromagnetic induction equation is derived for a laterally heterogeneous and transversely isotropic mantle. We obtain an approximate solution which is valid for a thin shell at the base of the mantle. The poloidal magnetic field at the core-mantle boundary derived from surface observations may be biased by the poloidal-toroidal coupling due to aspherical conductivity.
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页码：518 / 523
页数：6
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