THERMAL RELAXATION OF MAGNETIC DOMAIN MISALIGNMENT IN ROCKS

被引:5
作者
BHATHAL, RS
GILLINGH.DE
STACEY, FD
机构
[1] Physics Department, University of Queensland, Brisbane
关键词
D O I
10.1007/BF00877846
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
The anisotropy of susceptibility which is induced in rocks and dispersed powdered magnetite by the application of a strong alternating field is removed by heating more rapidly than is thermoremanence in the same specimens. The anisotropy associated with thermoremanence induced in the earth's field is negligible, but in fields greater than 5 oersteds it becomes appreciable. It is concluded that the domain structure associated with low field thermoremanence is only a very slight perturbation of the zero field structure. However this is much less simple than has been supposed and involves two- or three-dimensional domain closure. An appropriate minor revision of the theory of multidomain thermoremanence is presented. © 1969 Birkhäuser Verlag.
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页码:130 / &
相关论文
共 6 条
[1]   FIELD-INDUCED ANISOTROPY OF MAGNETIC SUSCEPTIBILITY IN ROCKS [J].
BHATHAL, RS ;
STACEY, FD .
PURE AND APPLIED GEOPHYSICS, 1969, 76 (05) :123-&
[2]  
DICKSON GO, 1966, EARTH PLANET SC LETT, V1, P222
[3]   THERMOREMANENT MAGNETIZATION .2. EXPERIMENTS ON MULTIDOMAIN GRAINS [J].
EVERITT, CWF .
PHILOSOPHICAL MAGAZINE, 1962, 7 (76) :583-&
[4]   MAGNETIC PROPERITIES OF DISPERSED MAGNETITE POWDERS [J].
PARRY, LG .
PHILOSOPHICAL MAGAZINE, 1965, 11 (110) :303-&
[6]   THE PHYSICAL THEORY OF ROCK MAGNETISM [J].
STACEY, FD .
ADVANCES IN PHYSICS, 1963, 12 (45) :45-133