Elsevier

Tectonophysics

Volume 98, Issues 3–4, 10 October 1983, Pages 327-336
Tectonophysics

Research paper
From qualitative to quantitative magnetic anisotropy analysis: The prospect of finite strain calibration

https://doi.org/10.1016/0040-1951(83)90300-1Get rights and content

Abstract

A method of separating low field susceptibility anisotropies due to ferrimagnetics and the matrix, proposed hitherto in cases where the principal axis of these two components are merged, is generalized in cases where the axes are distinct. The method consists of analysing, in specimens close in the same sample, anisotropies, the differences of which are due to the variation of respective percentages of the two components, although the strain rate remains constant. One thus uses the cause which itself renders global anisotropy unusable. A first application is presented, where a control using the anisotropy of isothermal remanent magnetization allows the validity of the method to be tested. A discussion of the choice of the best ellipsoid, relative either to the matrix or to the ferrimagnetics, to give the best indication of relative finite strain rate, is opened.

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