地下核爆炸前后的地磁观测及其结果
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摘要: 为研究震磁效应,在我国西部地下核试验现场布设了17个测点,于1983年9-10月间进行了地磁总强度的观测.资料分析结果表明,在离地下核爆炸点3.8——140km 范围内,各测点地磁总强度的差值变化在地下核爆炸前后存在异常,最大异常约为1.9nT;而且该异常与各测点至地下核爆炸点的距离具有一定的关系.在地下核爆炸时刻,存在2-3nT 地磁总强度的异常变化.这一结果对震磁关系与地磁预报地震的探索研究具有一定的参考意义.
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[10] Zhan. Z. J.,Yao. F. X.,Johnston. M., Mueller, R. and Gao. J. T., 1990. Analytical comparison of geomagnetic total field between Sino——U. S. stations. Proceekings of International Svurposium on Geomagnetism.128——133.17——20. April, 1990.shanghai, Chian.[1] 刘志远、高金田、张洪利、林云芳、詹志佳,1989,京津与河北省地区地磁测网的考察与实验观测,地震地震地磁观测与研究,10,4,39——46.
[2] 詹志佳,林云芳,1985,美国的地太强观测技术概况,地震地磁观测与研究,6,1,37——39.
[3] Abdullabckuv. K. N., Bezuglaya. L. S., Golovkov. V. P. and Skuvorudkin. Yu. P.. 1972. On the possibility of using magnetic methods to study tectonic processes. Tectonophysies, 14,257——262.
[4] Hasbrouck. W. P. and Allen. J. H, 1972. Quasi——static magnetic field changes assocrated with the Cnannikin nuelear explosion. Bull. .Soc. Amer., 62,1479——1487.
[5] Johnston. M.J. S., 1987. Tectonomagnetism and etctonoeloctricity. Reviews of Geopphysics, 25,983——988.
[6] Rikitakc. T. and Houkura. Y. , 1985. Solid Earth Geomagnetism. Terra Scientific Publishing,171——191.Tokys. Japan.
[7] Shapiro. V. A. and Abdullabekov, K. N., 1982 Anomalous variations of the geomagnetic field in East Fergake——magnetic precursor of the Alay earthquake with M=7.0(1978, November 2).Geophys. J. r. astron. Soc., 68.1——5.
[8] Willis. D. E., George. G. D. , Poetzl. K. G. . Saltzcr. C. E..Shokal. A. F., Turfin. F. D. . Woodzick. T. L. and Wolusin. C.、1972. Seismological aspects ofthe Cannikin nuclear explosion. Bull. Seismol. Soc. Amer., 62,1377——1395
[9] Zhan. Z. J.,1989. Envcstigations of tccaonomagnctic phenomena in China. Phys. Ennh Planet Inter., 57, 11——22.
[10] Zhan. Z. J.,Yao. F. X.,Johnston. M., Mueller, R. and Gao. J. T., 1990. Analytical comparison of geomagnetic total field between Sino——U. S. stations. Proceekings of International Svurposium on Geomagnetism.128——133.17——20. April, 1990.shanghai, Chian.
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