HYDROSTATIC PRESSURIZATION OF MAGNETITE

Author:

Carmichael R. S.1

Affiliation:

1. Department of Physics, Faculty of Engineering Science, Osaka University, Japan

Abstract

Study of the effect of mechanical deformation on magnetic minerals indicates the structure‐sensitive character of a parameter such as coercive force. Magnetoelastic effects and stress‐induced rearrangement of the magnetic domain pattern lead to changes in magnetic remanence. Such work has relevance to basic studies in rock magnetism and paleomagnetism. The effect of increase in hydrostatic pressure on rocks with depth may have application in geophysical prospecting. For example, it could be a factor in the interpretation of magnetic well logging for remanence (Frey, 1951; Khramov, 1957) and susceptibility (Broding et al, 1952; Anderson, 1968), or interpretation of magnetic anomalies from deep‐seated sources.

Publisher

Society of Exploration Geophysicists

Subject

Geochemistry and Petrology,Geophysics

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