RESOLUTION OF FERRIMAGNETIC AND PARAMAGNETIC ANISOTROPIES IN ROCKS, USING COMBINED LOW-FIELD AND HIGH-FIELD MEASUREMENTS

被引：88
作者：
HROUDA, F
JELINEK, V
机构：
来源：
GEOPHYSICAL JOURNAL INTERNATIONAL | 1990年 / 103卷 / 01期
关键词：
anisotropy; rock magnetism; susceptiblity;
D O I：
10.1111/j.1365-246X.1990.tb01753.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：
A method of separation of ferrimagnetic and paramagnetic components of magnetic anisotropy from the total anisotropy is developed. From the anisotropy measurement of a specimen in a low field (susceptibility anisotropy) and from measurement in two high fields stronger than the saturation field of the ferrimagnetic fraction present, the following anisotropy components can be calculated: susceptibility anisotropy (field‐independent) of the paramagnetic fraction, low‐field (susceptibility) anisotropy of the ferrimagnetic fraction and high‐field anisotropy of the ferrimagnetic fraction. Errors possibly arising from imperfect saturation of the ferrimagnetic fraction in the field practically available are analysed. Copyright © 1990, Wiley Blackwell. All rights reserved
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页码：75 / 84
页数：10
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