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HAO JINQIup, HUANG PINGZHANGup, ZHANG TIANZHONGup, Xu MINGFAup2, ZHOU JIANGUOup, MA XINGHUAup3er. 1989: THE STRESS EFFECT ON REMANENT MAGNETIZATION OF ROCKS. Acta Seismologica Sinica, 11(4): 381-391.
Citation: HAO JINQIup, HUANG PINGZHANGup, ZHANG TIANZHONGup, Xu MINGFAup2, ZHOU JIANGUOup, MA XINGHUAup3er. 1989: THE STRESS EFFECT ON REMANENT MAGNETIZATION OF ROCKS. Acta Seismologica Sinica, 11(4): 381-391.
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THE STRESS EFFECT ON REMANENT MAGNETIZATION OF ROCKS

  • 1. Institute of Geophysics, State Seismologiral Bureau; 2. Institute of Seismology of Lanzhou, State Scismologicat Bureau; 3. Institute of Geomechanics, Chinese Academy of Geological Sciences

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  • Published Date: September 01, 2011
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    • Abstract
  • In order to simulate the effect of tectonic stress on the remanent magnetization of rocks,an experiment with 44 samples of 6 types is carried out. The result shows that the nature of the changes of the remanence with the stress is far more complicated than estimated hitherto. The authors suggest that these phenomena could be divided into three types. In the weakly irreversible (typeⅠ) effect the remanence decreases with stress regularly and then is restored to nearly its original value when the stress is completely released. In the strongly irreversible (typeⅡ) effect the remanence is hardly restored when the stress is released. In the irregular (type Ⅲ) effect the remanence shows a very jumble variation with stress. An important reason that these rock samples show such different effects is,according to the results of comprehensive magnetic study on these rocks,the different contents of VRM contained in NRM of the samples,microscopically depending on the magnetic minerals in rocks and their domain states etc. The results imply that to interpret the piezomagnetic effects of earthquakes the sole simple piezomagnetic model of rocks is not enough,while the specific contents of rocks in the seismic regions involved need be considered.
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    • References (1)
  • [1] Ohnaka M. and H. Kinoshita, 1968, Glfect of uniaxial compression on remanent magnetization. J. Geomag,Geoclectr., 20, 93——99.

    [2] Revol J., R. Day and M. D. Fuller, 1977. Magnetic behavior of magnetite and rocks stressed to failure——relation to earth quake prediction. Earth Ylanct. Sci. Lezz., 37. 296——306.

    [3] Henyey T. L., S. T. Pike and D. F. Palmer, 1978. On the measurement of stress sensitivity of NRM using a cryogenic magnetometers. J. Gcomag. Geoelectr., 30, 607——617

    [4] Revol J., R. Day and M. Fuller, 1978. Effect of uniaxial stress upon remancnt magnetization:stress cycling and domain state dependence. J. Gaozttrb. Gcoelectr., 30. 593——605.

    [5] Collinson D. W., 1983. Methods in rock magnetism and palacumagnetism, Chapman and llall, London,503pp

    [6] Hronda F., 1982. Magnetic anisotropy of racks and its application in geology and geophysics. Gep[justca Surveys, 5, 37——82.

    [7] Stacey, F, D., S. K. Banerjee, 1974. The physical principles of rock magnetism. Elrevier, fintsterdum 195pp.

    [8] Parry L. G., 1965. Magnetic properties of dispersed magnetite powders. Phil. Mag., 11, 303——312.

    [9] Hao Jin——qi, L. G. Parry, G. J. Tuck and F. D. Stacey, 1982. The piezomagnettc effort in rocks: a comparison of measurements in high and low fields. Phys. Earth Planct. Inter., 29, 173——182.

    [10] Dunlop D, J., 1981. The rock magnetism of tine particles. Phys. Earth Planet. Inter., 26, 1——26.

    [11] Dunlop D. J,1983. Viscous triagnetization of 0.04——100 μm magnetizes. Grnphys. J R. astr. Spc., 74,667——687.

    [12] 郝锦绮,1985,唐山地震与震磁效应的最佳观测.地震学报,7,300——313.

    [1] Ohnaka M. and H. Kinoshita, 1968, Glfect of uniaxial compression on remanent magnetization. J. Geomag,Geoclectr., 20, 93——99.

    [2] Revol J., R. Day and M. D. Fuller, 1977. Magnetic behavior of magnetite and rocks stressed to failure——relation to earth quake prediction. Earth Ylanct. Sci. Lezz., 37. 296——306.

    [3] Henyey T. L., S. T. Pike and D. F. Palmer, 1978. On the measurement of stress sensitivity of NRM using a cryogenic magnetometers. J. Gcomag. Geoelectr., 30, 607——617

    [4] Revol J., R. Day and M. Fuller, 1978. Effect of uniaxial stress upon remancnt magnetization:stress cycling and domain state dependence. J. Gaozttrb. Gcoelectr., 30. 593——605.

    [5] Collinson D. W., 1983. Methods in rock magnetism and palacumagnetism, Chapman and llall, London,503pp

    [6] Hronda F., 1982. Magnetic anisotropy of racks and its application in geology and geophysics. Gep[justca Surveys, 5, 37——82.

    [7] Stacey, F, D., S. K. Banerjee, 1974. The physical principles of rock magnetism. Elrevier, fintsterdum 195pp.

    [8] Parry L. G., 1965. Magnetic properties of dispersed magnetite powders. Phil. Mag., 11, 303——312.

    [9] Hao Jin——qi, L. G. Parry, G. J. Tuck and F. D. Stacey, 1982. The piezomagnettc effort in rocks: a comparison of measurements in high and low fields. Phys. Earth Planct. Inter., 29, 173——182.

    [10] Dunlop D, J., 1981. The rock magnetism of tine particles. Phys. Earth Planet. Inter., 26, 1——26.

    [11] Dunlop D. J,1983. Viscous triagnetization of 0.04——100 μm magnetizes. Grnphys. J R. astr. Spc., 74,667——687.

    [12] 郝锦绮,1985,唐山地震与震磁效应的最佳观测.地震学报,7,300——313.
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