Journal ArticleDOI
Basic magnetic properties of rocks under the effects of mechanical stresses
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TLDR
In this article, the effects of mechanical stresses on the magnetization of the earth's crust can be classified in two categories: (a) the reversible effect which disappears when the stress is removed; and (b) the irreversible effect which causes an irreversible enhancement or an irreversible demagnetization of remanent magnetization.About:
This article is published in Tectonophysics.The article was published on 1970-03-01. It has received 103 citations till now. The article focuses on the topics: Remanence & Magnetization.read more
Citations
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Journal ArticleDOI
Computer modelling of geomagnetic anomalies associated with block-faulting
TL;DR: In this article, the finite element method was used in a computer model to calculate stress distributions in a segment of the upper crust responding to dip-slip movements on a buried vertical fault.
Design and validation of novel electrically rotating eddy current probes
TL;DR: In this paper, an in-depth analysis of the issues and a novel probe design for potentially addressing these problems is presented. But the authors focus on the detection of small amplitude defect indications in the presence of dominant response signals from fasteners such as anisotropy, hysteresis, etc.
Book ChapterDOI
Applications of rock and mineral magnetism
TL;DR: In this paper, the authors present a physical model for the acquisition and removal of weak field remanences, which form the physical basis for determinations of the direction and intensity of the ancient geomagnetic field and the inferences which can be made from such a determination.
Numerical simulation of piezomagnetic changes associated with hydrothermal pressurization and its application to volcanomagnetic variations observed at Merapi Volcano (地球電磁気学の諸問題)
Ayako Okubo,Wataru Kanda +1 more
TL;DR: In this article, a 3D finite element program was developed for solving the elastic effective stress field using the spatial distribution of body forces resulting from both gravity and seepage force, with appropriate boundary conditions.
References
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Journal ArticleDOI
The seismomagnetic effect
TL;DR: In this article, the authors calculate local variations in the geomagnetic field, which are produced by stress changes in crustal rocks, from the stress patterns and the piezomagnetic properties of the rocks down to the Curie point isotherm.
Journal ArticleDOI
Earthquake Energy, Earthquake Volume, Aftershock Area, and Strength of the Earth's Crust
TL;DR: In this article, the authors deduced the energy of the largest possible earthquake from the spatial distribution of the stress energy within the earth's crust, which was then combined with the magnitude energy relation due to GUTENBERG and RICHTER, yielding a formulaE=6×102×A1·5.
Journal ArticleDOI
Effects of Uniaxial Compression on Remanent Magnetization
Mitiyasu Ohnaka,Hajimu Kinoshita +1 more
TL;DR: In this article, the effect of directional stress on the remanent magnetization of magnetite bearing rocks and nickel polycrystallites was investigated and a nearly reversible change in intensity was found when the direction of compression is perpendicular to that of TRM.
Journal ArticleDOI
The effect of stress on the susceptibility and magnetization of a partially magnetized multidomain system
TL;DR: In this article, a model for partial magnetization of an isotropic multidomain magnetic system was proposed and the behavior of the model system in response to applied stress was analyzed.
Journal ArticleDOI
Theory of the magnetic susceptibility of stressed rock
TL;DR: In this paper, the authors calculated the stress dependence of magnetic susceptibility of igneous rock from the multidomain theory of magnetic grains, assuming that the magnetic mineral is pure magnetite whose saturation magnetization, magnetocrystalline anisotropy and saturation magnetostriction are known.