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《Chinese Journal of Geophysics》 1994-01
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THE DISPERSION PHENOMENON OF MAGNETIC SUSCEPTIBILTY ANISOTROPY OF ROCK

HE SHAO-YING (Bureau of Petroleum Geology East China,Nanjing 210031)  
It was found during the comparative measurement of rock specimen applied by steady (astatic magnetometer)and 10kHz alternating(Minisep spin magnetometer) weak magnetic field.The principal magnetic susceptibilities KM measured by the Minisep spin are smaller than k1 measured by the astatic,and the kM(Kmax and Kint)along the foliation plane f decrease more than that (kmin) along its normal line n does.In this paper,It is explained that is due to the eddy currents hysteresis mechanism which produce anisotropic magnetic shield effect on the magnetic.carrier;and the existence of the dispersion phenomenon of magnetic susceptibility anisotropy of rock is deduced.
【CateGory Index】: P584
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