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
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Book ChapterDOI
Magnetic Properties of Rocks and Minerals
TL;DR: In this article, an updated collation of magnetic parameters of rocks and minerals for geologists, geochemists, and geophysicists is presented, and best-fit equations have been provided for some of the displayed ata so that interpolations can be made easily.
Journal ArticleDOI
Electromagnetic precursors to earthquakes in the Ulf band: A review of observations and mechanisms
TL;DR: In this article, the authors have demonstrated conclusively that self potentials develop owing to fluid flow and that both resistivity and magnetization change when rocks are stressed, however, field experiments have had much less success.
Journal ArticleDOI
Structural geology, petrofabrics and magnetic fabrics (AMS, AARM, AIRM)
TL;DR: Anisotropy of magnetic susceptibility (AMS) was recognized as a feature of minerals in 1899, and petrofabric-compatible AMS fabrics were reported from 1942-1958 as mentioned in this paper.
Journal ArticleDOI
Magnetic Fabric and Its Significance in the 1400 Ma Mealy Diabase Dykes of Labrador, Canada
TL;DR: An anistropy of magnetic susceptibility (AMS) study of the relatively fresh Mealy diabase dyke swarm indicates a correlation between the AMS and the deformational effects in the rocks as discussed by the authors.
Journal ArticleDOI
A tectonomagnetic effect observed before a magnitude 5.2 earthquake near Hollister California
B. E. Smith,M. J. S. Johnston +1 more
TL;DR: In this paper, the most significant local changes during 1974 were recorded at a site 11 km from a magnitude 5.2 earthquake that occurred on November 28, 1974, lasting about 2 weeks.
References
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Journal ArticleDOI
Studies on Piezo-Magnetization (III)
TL;DR: In this paper, changes in the magnetization curves, magnetic susceptibility, and remanent magnetization of magnetite and titaniferous magnetite under uniaxial compression are experimentally examined in a systematic way.
Journal ArticleDOI
The volcano-magnetic effect
TL;DR: In this paper, a geometrically simple volcano is considered, havig a spherical magma chamber of 2.5 km radius centred at 10 km depth, and the Curie point isotherm is assumed to be a plane at 20 km depth.
Journal ArticleDOI
Magnetic Susceptibility of Compressed Rocks
TL;DR: In this paper, the effect of uniaxial compression on the initial magnetic susceptibility of rocks is empirically expressed as κ(σ)=κ0/(1+βσ) where κ0 denotes the susceptibility for σ = 0.
Journal ArticleDOI
Anisotropic magnetic susceptibility of rocks under mechanical stresses
TL;DR: The magnetic susceptibility of a rock under uniaxial compression (σ) decreases along the axis of compression and increases along the direction perpendicular to the axis, with an increase of σ as discussed by the authors.