ELECTRICAL STRUCTURE OF UPPER CRUST IN THE SOURCE REGION OF JINGGU YUNNAN MS6.6 EARTHQUAKE AND THE SEISMOGENIC ENVIRONMENT

doi:10.3969/j.issn.0253-4967.2016.02.010

Abstract

Abstract:

The October 7, 2014 M_S6.6 earthquake in southwest of Jinggu in the southwestern Yunnan Province occurred as the result of shallow strike-slip faulting within the crust of the Eurasia plate in the broad plate boundary region between the India and Eurasia plates. The strike of fault plane is 140°, and the aftershock distribution shows that the rupture plane is also NNW-trending. Tectonics of the region are controlled by the convergence of the India plate with Eurasia, which has driven the uplift of the Himalayas to the west of this earthquake, and has caused the formation of numerous intraplate continental transform structures in the surrounding region. The pattern of elastic-wave radiation from the earthquake is consistent with the shock occurring either as the result of right-lateral faulting on a northwest-trending fault or as the result of left-lateral faulting on a northeast trending fault. Faults of both types have been mapped in southwestern Yunnan, and it is unclear at this time which type of fault hosted this event. Magnetotelluric survey line is across Jinggu earthquake zone. The advanced data processing and analysis technology of MT is employed and the quantitative data from field surveys are analyzed to acquire the reliable electrical model. The MT data are inverted using nonlinear conjugate gradient (NLCG) inversion algorithm. At last, the interpretation of the electrical model is performed considering the geology and the other geophysical data. Based on the final inversion model of the target profile, it is found that:(1) Electrical structure of the source region can be divided into four layers:The surface is relatively low resistivity layer(0~5km), consisting mainly of Mesozoic and Cenozoic Basin sedimentary rocks, the value of resistivity is 100Ω·m; The high resistivity layer(5~10km) in upper crust mainly consists of Proterozoic metamorphic rocks, with resistivity higher than 1 000Ω·m; there are the upper crust high-conductivity layer(15~25km) and crust-mantle transition zone(blow 25km); (2) The focal depth of the Jinggu earthquake is about 10km, which locates in the interface between high resistivity layer and high-conductivity layer; (3) Most of the focal depths of the aftershocks are in the range of 5km and 10km, and the two depths(5km & 10km) are corresponding to the resistivity gradient belt.

Key words: Jinggu earthquake, magnetotelluric, electrical structure, resistivity gradient belt, seismotectonics

摘要：

2014年10月7日云南景谷地区发生M_S6.6地震，震源机制显示此次地震为逆走滑型，地震断层面走向140°，同时余震分布显示破裂面走向也为NNW向。文中对1条横穿景谷震区，与地震破裂面垂直的大地电磁测线数据进行了由定性到定量的全面分析，通过二维非线性共轭梯度（NLCG）反演得到了震源区较为详细的地壳电性结构。结果表明：1）震源区电性结构可以分为4层：地表以下约4km为相对低阻层，主要由中、新生代盆地沉积岩组成，电阻率10～100Ω·m；地下5～10km为相对高阻层，可能由元古界变质岩系组成，电阻率>1 000Ω·m；15～30km为中下地壳低阻层，电阻率<10Ω·m；30km以下为壳幔过渡层，电阻率值约为30Ω·m。2）景谷地震主震发生在高阻层和壳内低阻层的分界面上。3）对余震的震源深度统计发现5km和10km两个深度范围内余震较多，与电性梯度带的位置相对应。

关键词: 景谷地震, 大地电磁测深, 电性结构, 电性梯度带, 地震构造

CLC Number:

P319.2

CHENG Yuan-zhi, TANG Ji, DENG Yan, DONG Ze-yi. ELECTRICAL STRUCTURE OF UPPER CRUST IN THE SOURCE REGION OF JINGGU YUNNAN M_S6.6 EARTHQUAKE AND THE SEISMOGENIC ENVIRONMENT[J]. SEISMOLOGY AND GEOLOGY, 2016, 38(2): 352-369.

程远志, 汤吉, 邓琰, 董泽义. 云南景谷M_S6.6地震震源区深部电性结构及其孕震环境[J]. 地震地质, 2016, 38(2): 352-369.

References

白志明, 王椿镛. 2003. 云南地区上部地壳结构和地震构造环境的层析成像研究［J］. 地震学报, 25(2):117-127. BAI Zhi-ming, WANG Chun-yong. 2003. Tomographic investigation of the upper crustal structure and seismotectonic environments in Yunnan Province［J］. Acta Seismologica Sinica, 25(2):117-127(in Chinese).
蔡军涛, 陈小斌. 2010b. 大地电磁资料精细处理和二维反演解释技术研究(二):反演数据极化模式选择［J］. 地球物理学报, 53(11):2703-2714. doi:10.3969/j.issn.0001-5733.2010.11.018. CAI Jun-tao, CHEN Xiao-bin. 2010b. Refined techniques for data processing and two-dimensional inversion in magnetotelluric Ⅱ:Which data polarization mode should be used in 2D inversion［J］. Chinese Journal of Geophysics, 53(11):2703-2714(in Chinese).
蔡军涛, 陈小斌, 赵国泽. 2010a. 大地电磁资料精细处理和二维反演解释技术研究(一):阻抗张量分解与构造维性分析［J］. 地球物理学报, 53(10):2516-2526. doi:10.3969/j.issn.0001-5733.2010.10.025. CAI Jun-tao, CHEN Xiao-bin, ZHAO Guo-ze. 2010a. Refined techniques for data processing and two-dimensional inversion in magnetotelluric Ⅰ:Tensor decomposition and dimensionality analysis［J］. Chinese Journal of Geophysics, 53(10):2516-2526(in Chinese).
陈小斌, 蔡军涛, 王立凤, 等. 2014. 大地电磁资料精细处理和二维反演解释技术研究(四):阻抗张量分解的多测点-多频点统计成像分析［J］. 地球物理学报, 57(6):1946-1957. doi:10.6038/cjg20140625. CHEN Xiao-bin, CAI Jun-tao, WANG Li-feng, et al. 2014. Refined techniques for magnetotelluric data processing and two-dimensional inversion(Ⅳ):Statistical image method based on multi-site, multi-frequency tensor decomposition［J］. Chinese Journal of Geophysics, 57(6):1946-1957(in Chinese).
陈小斌, 赵国泽, 詹艳. 2004. MT资料处理与解释的Windows可视化集成系统［J］. 石油地球物理勘探, 39(增刊):11-16. CHEN Xiao-bin, ZHAO Guo-ze, ZHAN Yan. 2004. Visual window system for MT data processing and interpretation［J］. Geophys Prosp Petro, 39(sup):11-16(in Chinese).
邓起东, 张培震, 冉勇康, 等. 2002. 中国活动构造基本特征［J］. 中国科学(D辑), 32(12):1020-1030. DENG Qi-dong, ZHANG Pei-zhen, RAN Yong-kang, et al. 2002. Basic characteristic of active tectonics of China［J］. Science in China(Series D), 32(12):1020-1030(in Chinese).
段波. 1994. 校正大地电磁测深中静态效应的首枝重合法［J］. 长春地质学院学报, 24(4):444-449. DUAN Bo. 1994. The method of coinciding head part of apparent resistivity curve which used to correct static shift in magnetotelluric［J］. Journal of Changchun University of Earth Sciences, 24(4):444-449(in Chinese).
管烨, 王安建, 李朋武, 等. 2006. 云南兰坪-思茅盆地中轴构造带的特征及其研究意义［J］. 中国地质, 33(4):832-841. GUAN Ye, WANG An-jian, LI Peng-wu, et al. 2006. Characteristics of the middle axial tectonic belt in the Lanping-Simao Basin, western Yunnan, and its research significance［J］. Geology in China, 33(4):832-841(in Chinese).
胡鸿翔, 高世玉. 1993. 滇西地区地壳浅部基底速度细结构的研究［J］. 中国地震, 9(4):356-363. HU Hong-xiang, GAO Shi-yu. 1993. The investigation of fine velocity structure of the basement layer of earth's crust in western Yunnan region［J］. Earthquake Research in China, 9(4):356-363(in Chinese).
金胜, 魏文博, 汪硕, 等. 2010. 青藏高原地壳低阻层的成因及动力学意义探讨:大地电磁探测提供的依据［J］. 地球物理学报, 53(10):2376-2385. doi:10.3969/j.issn.0001-5733.2010.10.011. JIN Sheng, WEI Wen-bo, WANG Shuo, et al. 2010. Discussion of the formation and dynamic signification of the high conductive layer in Tibetan crust［J］. Chinese Journal of Geophysics, 53(10):2376-2385(in Chinese).
李冉, 汤吉, 董泽义, 等. 2014. 云南南部地区深部电性结构特征研究［J］. 地球物理学报, 57(4):1111-1112. doi:10.6038/cjg20140409. LI Ran, TANG Ji, DONG Ze-yi, et al. 2014. Deep electrical conductivity structure of the southern area in Yunnan Province［J］. Chinese Journal of Geophysics, 57(4):1111-1122(in Chinese).
林中洋, 胡鸿翔, 张文彬, 等. 1993. 滇西地区地壳上地幔速度结构特征的研究［J］. 地震学报, 15(4):427-440. LIN Zhong-yang, HU Hong-xiang, ZHANG Wen-bin, et al. 1993. The velocity structure research of crust & upper mantle in Yunnan area［J］. Acta Seismologica Sinica, 15(4):427-440(in Chinese).
刘福田, 刘建华, 何建坤, 等. 2000. 滇西特提斯造山带下扬子地块的俯冲板片［J］. 科学通报, 45(1):79-84. LIU Fu-tian, LIU Jian-hua, HE Jian-kun, et al. 2000. The subduction slab of Yangzi block under Tethys orogenic belt in western Yunnan［J］. Chinese Science Bulletin, 45(1):79-84(in Chinese).
鲁来玉, 何正勤, 丁志锋, 等. 2014. 基于背景噪声研究云南地区面波速度非均匀性和方位各向异性［J］. 地球物理学报, 57(3):822-836. doi:10.6038/cjg20140312. LU Lai-yu, HE Zheng-qin, DING Zhi-feng, et al. 2014. Azimuth anisotropy and velocity heterogeneity of Yunnan area based on seismic ambient noise［J］. Chinese Journal of Geophysics, 57(3):822-836(in Chinese).
钱晓东, 秦嘉政, 刘丽芳. 2011. 云南地区现代构造应力场研究［J］. 地震地质, 33(1):91-106. doi:10.3969/j.issn.0253-4967.2011.01.009 QIAN Xiao-dong, QIN Jia-zheng, LIU Li-fang. 2011. Study on recent tectonic stress field in Yunnan region［J］. Seismology and Geology, 33(1):91-106(in Chinese).
阮爱国, 王椿镛. 2002. 云南地区上地幔各项异性研究［J］. 地震学报, 24(3):260-267. RUAN Ai-guo, WANG Chun-yong. 2002. The upper mantle anisotropy in Yunnan area, China［J］. Acta Seismologica Sinica, 24(3):260-267(in Chinese).
孙长青, 雷建设, 李聪, 等. 2013. 云南地区地壳各向异性及其动力学意义［J］. 地球物理学报, 56(12):4095-4105. doi:10.6038/cjg20131214. SUN Chang-qing, LEI Jian-she, LI Cong, et al. 2013. Crustal anisotropy beneath the Yunnan region and dynamic implications［J］. Chinese Journal of Geophysics, 56(12):4095-4105(in Chinese).
汤吉, 王继军, 陈小斌, 等. 2005. 阿尔山火山区地壳上地幔电性结构初探［J］. 地球物理学报, 48(1):196-202. TANG Ji, WANG Ji-jun, CHEN Xiao-bin, et al. 2005. Preliminary investigation for electric conductivity structure of the crust and upper mantle beneath the Aershan volcano area［J］. Chinese Journal of Geophysics, 48(1):196-202(in Chinese).
王夫运, 潘素珍, 刘兰, 等. 2014. 玉溪-临沧剖面宽角地震探测:红河断裂带及滇南地壳结构研究［J］. 地球物理学报, 57(10):3247-3258. doi:10.6038/cjg20141013. WANG Fu-yun, PAN Su-zhen, LIU Lan, et al. 2014. Wide angle seismic exploration of Yuxi-Lincang profile:The research of crustal structure of the Red River fault zone and southern Yunnan［J］. Chinese Journal of Geophysics, 57(10):3247-3258(in Chinese).
汪集旸, 黄少鹏. 1990. 中国大陆大地热流数据汇编(第二版)［J］. 地震地质, 12(4):351-366. WANG Ji-yang, HUANG Shao-peng. 1990. Compilation of heat flow data in the China continental area(2^nd Edition)［J］. Seismology and Geology, 12(4):351-366(in Chinese).
肖骑彬, 赵国泽, 詹艳, 等. 2007. 大别山超高压变质带深部电性结构及其动力学意义初步研究［J］. 地球物理学报, 50(3):812-822. XIAO Qi-bin, ZHAO Guo-ze, ZHAN Yan, et al. 2007. A preliminary study on electrical structure and dynamics of the ultra-high pressure metamorphic belt beneath the Dabie Mountains［J］. Chinese Journal of Geophysics, 50(3):812-822(in Chinese).
徐锡伟, 闻学泽, 韩竹军, 等. 2013. 四川芦山7.0级强震:一次典型的盲逆断层型地震［J］. 科学通报, 58(20):1887-1893. XU Xi-wei, WEN Xue-ze, HAN Zhu-jun, et al. 2013. Lushan M_S7.0 earthquake:A blind reserve-fault earthquake［J］. Chinese Science Bulletin, 58(20):1887-1893(in Chinese).
徐锡伟, 闻学泽, 郑荣章, 等. 2003. 川滇地区活动块体最新构造变动样式及其动力来源［J］. 中国科学(D辑), 33(增刊):151-162. XU Xi-wei, WEN Xue-ze, ZHENG Rong-zhang, et al. 2003. Pattern of latest tectonic motion and its dynamics for active blocks in Sichuan-Yunnan region, China［J］. Science in China(Series D), 46(Suppl):210-226.
胥颐, 杨晓涛, 刘建华. 2013. 云南地区地壳速度结构的层析成像研究［J］. 地球物理学报, 56(6):1904-1914. doi:10.6038/cjg20130613. XU Yi, YANG Xiao-tao, LIU Jian-hua. 2013. Tomographic study of crustal velocity structures in the Yunnan region, southwest China［J］. Chinese Journal of Geophysics, 56(6):1904-1914(in Chinese).
叶高峰, 魏文博, 金胜, 等. 2009. 郯庐断裂带中断电性结构及其地学意义研究［J］. 地球物理学报, 52(11):2818-2825. doi:10.3969/j.issn.0001-5733.2009.11.016. YE Gao-feng, WEI Wen-bo, JIN Sheng, et al. 2009. Study of the electrical structure and its geological meanings of the middle part of Tancheng-Lujiang fault zone［J］. Chinese Journal of Geophysics, 52(11):2818-2825(in Chinese).
叶涛, 陈小斌, 严良俊. 2013. 大地电磁资料精细处理和二维反演解释技术研究(三):构建二维反演初始模型的印模法［J］. 地球物理学报, 56(10):3596-3606. doi:10.6038/cjg20131034. YE Tao, CHEN Xiao-bin, YAN Liang-jun. 2013. Refined techniques for data processing and two-dimensional inversion in magnetotelluric(Ⅲ):Using the impressing method to construct starting model of 2D magnetotelluric inversion［J］. Chinese Journal of Geophysics, 56(10):3596-3606(in Chinese).
翟明国, 从柏林, 乔广生, 等. 1990. 中国滇西南造山带变质岩的Sm-Nd和Rb-Sr同位素年代学［J］. 岩石学报, 6(4):1-11. ZHAI Ming-guo, CONG Bo-lin, QIAO Guang-sheng, et al. 1990. Sm-Nd and Rb-Sr geochronology of metamorphic rocks from SW Yunnan orogenic zones, China［J］. Acta Petrologica Sinica, 6(4):1-11(in Chinese).
张保民, 沈上越, 莫宣学, 等. 2004. 云南景谷岔河、茂密河火山岩及其构造环境［J］. 矿物岩石, 24(2):19-25. ZHANG Bao-min, SHEN Shang-yue, MO Xuan-xue, et al. 2004. The characteristics and tectonic environment of volcanic rocks in Chahe and Maomihe of Jinggu, Yunnan Province［J］. Journal of Mineralogy and Petrology, 24(2):19-25(in Chinese).
张培震, 邓起东, 张国民, 等. 2003. 中国大陆的强震活动与活动地块［J］. 中国科学(D辑), 33(增刊):12-20. ZHANG Pei-zhen, DENG Qi-dong, ZHANG Guo-min, et al. 2003. Active tectonic blocks and strong earthquakes in continental China［J］. Science in China(Series D), 46(Suppl):13-24.
张智, 赵兵, 张晰, 等. 2006. 云南思茅-中甸地震剖面的地壳结构［J］. 地球物理学报, 49(5):1377-1384. ZHANG Zhi, ZHAO Bing, ZHANG Xi, et al. 2006. Crustal structure beneath the wide-angle seismic profile between Simao and Zhongdian in Yunnan［J］. Chinese Journal of Geophysics, 49(5):1377-1384(in Chinese).
张中杰, 白志明, 王椿镛, 等. 2005. 冈瓦纳型和扬子型地块地壳结构:以滇西孟连-马龙宽角反射剖面为例［J］. 中国科学(D辑), 35(5):387-392. ZHANG Zhong-jie, BAI Zhi-ming, WANG Chun-yong, et al. 2005. Crustal structure of Gondwana and Yangze-typed blocks:An example by wide-angle seismic profile from Menglian to Malong in western Yunnan［J］. Science in China(Series D), 48(11):1828-1836.
赵国泽, 汤吉, 詹艳, 等. 2004. 青藏高原东北缘地壳电性结构和地块变形关系的研究［J］. 中国科学(D辑), 34(10):908-918. ZHAO Guo-ze, Tang Ji, Zhan Yan, et al. 2004. Relation between electricity structure of the crust and deformation of crustal blocks on the northeastern margin of Tibetan plateau［J］. Science in China(Series D), 34(10):908-918(in Chinese).
钟大赉. 1998. 滇川西部古特提斯造山带［M］. 北京:科学出版社. ZHONG Da-lai. 1998. The Tethys Orogenic Belt in Western Yunnan［M］. Science Press, Beijing(in Chinese).
钟大赉, 丁林, 刘福田, 等. 2000. 造山带岩石层多向层架构造及其新生代岩浆活动研究制约:以三江及邻区为例［J］. 中国科学(D辑), 30(增刊):1-8. ZHONG Da-lai, DING Lin, LIU Fu-tian, et al. 2000. Multi-oriented and layered structures of lithosphere in orogenic belt and their effects on Cenozoic magmatism:A case study of western Yunnan and Sichuan, China［J］. Science in China(Series D), 43(S1):122-133.
周真恒, 向才英, 赵晋明. 1995. 滇西地热场特征［J］. 地震研究, 18(1):41-48. ZHOU Zhen-heng, XIANG Cai-ying, ZHAO Jin-ming. 1995. Characteristics of geothermal field in west Yunnan［J］. Journal of Seismological Research, 18(1):41-48(in Chinese).
Berdichevsky M N, Dmitriev V I, Pozdnjakova E. 1998. On two-dimensional interpretation of magnetotelluric soundings［J］. Geophys J Int, 133:585-606.
Caldwell T G, Bibby H M, Brown C. 2004. The magnetotelluric phase tensor［J］. Geophys J Int, 158(2):457-469.
Chave A D, Thomson D J. 1989. Some comments on magnetotelluric response function estimation［J］. J Geophys Res, 94(B10):14215-14225.
Egbert G D. 1997. Robust multiple-station magnetotelluric data processing［J］. Geophys J Int, 130(2):475-496.
Gamble T D, Goubau W M, Clarke J. 1979. Magnetotellurics with a remote magnetic reference［J］. Geophysics, 44(1):53-68.
Hansen P C. 1992. Analysis of discrete ill-posed problem by means of the L-Curve［J］. SIAM Review, 34(4):561-580.
Ingebritsen S E, Manning C E. 2010. Permeability of the continental crust:Dynamic variations inferred from seismicity and metamorphism［J］. Geofluids, 10(1-2):193-205.
Jones A G. 1988. Static shift of magnetotelluric data and its removal in a sedimentary basin environment［J］. Geophysics, 53(7):967-978.
Ledo J. 2006. 2-D versus 3-D magnetotelluric data interpretation［J］. Surveys in Geophysics, 27(5):111-148.
Leloup P H, Harrison T M, Ryerson F J, et al. 1995. Structural, petrological and thermal evolution of a Tertiary ductile strike-slip shear zone, Diancang Shan, Yunnan［J］. J Geophys Res, 98(B4):6175-6743.
Parker R L, Booker K A. 1996. Optimal one-dimensional inversion and bounding of magnetotelluric apparent resistivity and phase measurements［J］. Phy Earth Planet Inter, 98(3-4):269-282.
Replumaz A, Tapponnier P. 2003. Reconstruction of the deformed collision zone between India and Asia by backward motion of lithospheric blocks［J］. J Geophys Res, 108(B62285). doi:10.1029/2001JB000661.
Rodi W, Mackie R L. 2001. Nonlinear conjugate gradients algorithm of 2D magnetotelluric inversion［J］. Geophysics, 66(1):174-187.
Royden L H, Burchfiel B C, King R E, et al. 1997. Surface deformation and lower crustal flow in eastern Tibet［J］. Science, 276(5313):788-790.
Royden L H, Burchfiel B C, Robert D. 2008. The geological evolution of the Tibetan plateau［J］. Science, 321(1054):1054-1058.
Shapiro S A, Patzig R, Rothert E, et al. 2003. Triggering of seismicity by pore-pressure perturbations:Permeability-related signatures of the phenomenon［J］. Pure and Applied Geophysics, 160(5-6):1051-1066.
Spitzer K. 2001. Magnetotelluric static shift and direct current sensitivity［J］. Geophys J Int, 144(2):289-299.
Sternberg B K, Washburne J C, Pellerin L. 1988. Correction for the static shift in magnetotellurics using transient electromagnetic soundings［J］. Geophysics, 53(11):1459-1468.
Tanaka K, Mu C L, Sato K, et al. 2008. Tectonic deformation around the eastern Himalayan syntaxis:Constraints from the Cretaceous palaeomagnetic data of the Shan-Thai Block［J］. Geophys J Int, 175(2):713-728.
Torres-Verdin C, Bostick F X. 1992. Principles of spatial surface electric field filtering in magnetotellurics:Electromagnetic array profiling(EMAP)［J］. Geophysics, 57(4):603-622.
Unsworth M J, Jones A G, Wei W B, et al. 2005. Crustal rheology of the Himalaya and southern Tibet inferred from magnetotelluric data［J］. Nature, 438(3):78-81.
Wang C Y, Chan W W, Mooney W D. 2003. Three-dimensional velocity structure of crust and upper mantle in southwestern China and its tectonic implications［J］. J Geophys Res, 108(B9):2442. doi:10. 1029/2002JB001973.
Wang C Y, Flesch L M, Silver P G, et al. 2008. Evidence for mechanically coupled lithosphere in central Asia and resulting implications［J］. Geology, 36(5):363-366.
Wang Q, Zhang P Z, Freymueller J T, et al. 2001. Present-day crustal deformation in China constrained by global positioning system measurements［J］. Science, 294(5542):574-577.
Wang X B, Zhang G, Fang H, et al. 2014. Crust and upper mantle resistivity structure at middle section of Longmenshan, eastern Tibetan plateau［J］. Tectonophysics, 619-620:143-148.
Wei W, Unsworth M J, Jones A G, et al. 2001. Detection of widespread fluids in the Tibetan crust by magnetotelluric studies［J］. Science, 292(5517):716-719.
Xiao Q B, Shao G H, Liu-Zeng J, et al. 2015. Eastern termination of the Altyn Tagh Fault, western China:Constraints from a magnetotelluric survey［J］. J Geophys Res, 120(5):2838-2858.
Zhang P Z, Shen Z K, Wang M, et al. 2004. Continuous deformation of the Tibetan plateau from global positioning system data［J］. Geology, 32(9):809-812.
Zhang X, Wang Y H. 2009. Crustal and upper mantle velocity structure in Yunnan, Southwest China［J］. Tectonophysics, 471(3-4):171-185.

[1]	WANG Ming-liang, ZHANG Yang, XU Shun-qiang, XU Zhi-ping. DEEP STRUCTURE IN THE MIDDLE AND SOUTH AREA OF NORTH CHINA DEPRESSION AND THE VICINITY BY MAGNETOTELLURICS [J]. SEISMOLOGY AND GEOLOGY, 2023, 45(2): 536-552.
[2]	ZHAO Ling-qiang, HU Ya-xuan, WANG Qing-liang, ZHU Yi-qing, CAO Cong, LI Zhong-wei, QI Wei, WEN Yu-long. THE CHARACTERISTICS OF DEEP ELECTRICAL STRUCTURE IN LONGGANG VOLCANIC AREA, JILIN PROVINCE [J]. SEISMOLOGY AND GEOLOGY, 2022, 44(4): 845-858.
[3]	DONG Ze-yi, TANG Ji, ZHAO Guo-ze, CHEN Xiao-bin, CUI Teng-fa, HAN Bing, JIANG Feng, WANG Li-feng. PROBING THE SUBSURFACE ELECTRIC STRUCTURE FOR CSELF NETWORK IN CAPITAL CIRCLE REGION [J]. SEISMOLOGY AND GEOLOGY, 2022, 44(3): 649-668.
[4]	ZHAO Ling-qiang, ZHAN Yan, WANG Qing-liang, SUN Xiang-yu, HAN Jing, CAO Cong, ZHANG Song, CAI Yan. THE SEISMOGENIC STRUCTURE OF THE 1303 HONGTONG M8 EARTHQUAKE INFERRED FROM MAGNETOTELLURIC IMAGING [J]. SEISMOLOGY AND GEOLOGY, 2022, 44(3): 686-700.
[5]	HAN Jing, ZHAN Yan, SUN Xiang-yu, ZHAO Guo-ze, LIU Xue-hua, BAO YU-xin, SUN Jian-bao, PENG Yuan-qian. CHARACTERISTICS AND PROCESSING OF MAGNETOTELLURIC DATA UNDER STRONG ELECTROMAGNETIC INTERFERENCE ENVIRONMENT [J]. SEISMOLOGY AND GEOLOGY, 2022, 44(3): 736-752.
[6]	ZHANG Yun-yun, WANG Pei-jie, CHEN Xiao-bin, ZHAN Yan, HAN Bing, WANG Li-feng, ZHAO Guo-ze. MAGNETOTELLURIC TIME SERIES PROCESSING IN STRONG INTERFERENCE ENVIRONMENT [J]. SEISMOLOGY AND GEOLOGY, 2022, 44(3): 786-801.
[7]	LIU Zhong-yin, CHEN Xiao-bin, CAI Jun-tao, CUI Teng-fa, ZHAO Guo-ze, TANG Ji, OUYANG Biao. THE DESIGN AND APPLICATION OF TOPEAK: A THREE-DIMENSIONAL MAGNETOTELLURIC INVERSION CLOUD COMPUTING SYSTEM [J]. SEISMOLOGY AND GEOLOGY, 2022, 44(3): 802-820.
[8]	CAO Ying, QIAN Jia-wei, HUANG Jiang-pei, ZHANG Guo-quan, FU Hong. P-WAVE VELOCITY CHANGES IN HYPOCENTER REGION OF THE 2014 JINGGU M_S6.6 EARTHQUAKE USING TIME-LAPSE TOMOGRAPHY BASED ON DOUBLE-DIFFERENCE TOMOGRAPHY [J]. SEISMOLOGY AND EGOLOGY, 2021, 43(6): 1563-1585.
[9]	RUAN Shuai, TANG Ji, DONG Ze-yi, WANG Li-feng, DENG Yan, HAN Bing. ELECTRIC STRUCTRUE MODEL OF TIANCHI VOLCANO IN CHANGBAI MOUNTAINS BASED ON THREE-DIMENSIONAL AR-QN MAGNETOTELLURIC INVERSION [J]. SEISMOLOGY AND GEOLOGY, 2020, 42(6): 1282-1300.
[10]	SUN Xiang-yu, ZHAN Yan, ZHAO Guo-ze, ZHAO Ling-qiang, DENG Yan, HU Ya-xuan, HU Jiu-chang, XIANG Xiao-juan. MAGNETOTELLURIC IMAGING OF MAGMA DISTRIBUTION BENEATH MA'ANLING AND LEIHULING VOLCANOES OF NORTHEASTERN HAINAN, CHINA [J]. SEISMOLOGY AND GEOLOGY, 2020, 42(3): 640-653.
[11]	SUN Xiang-yu, ZHAN Yan, ZHAO Ling-qiang, CHEN Xiao-bin, LI Chen-xia, SUN Jian-bao, HAN Jing, CUI Teng-fa. ELECTRICAL STRUCTURE OF THE 2017 M_S7.0 JIUZHAIGOU EARTHQUAKE REGION AND THE EASTERN TERMINUS OF THE EAST KUNLUN FAULT [J]. SEISMOLOGY AND GEOLOGY, 2020, 42(1): 182-197.
[12]	JIANG Feng, CHEN Xiao-bin, DONG Ze-yi, CUI Teng-fa, LIU Zhong-yin, WANG Pei-jie. APPLYING 3D INVERSION OF SINGLE-PROFILE MAGNETOTELLURIC DATA TO IDENTIFY THE SHADE AND YUNONGXI FAULTS [J]. SEISMOLOGY AND GEOLOGY, 2019, 41(6): 1444-1463.
[13]	ZHANG Ji-hong, ZHAO Guo-ze, DONG Ze-yi, WANG Li-feng, HAN Bing, WANG Qing-lin, TANG Ting-mei, WANF Mei. STUDY ON THE ELECTRICAL STRUCTURE OF THE ANQIU AND JUXIAN ELECTROMAGNETIC STATIONS IN THE TANLU FAULT ZONE [J]. SEISMOLOGY AND GEOLOGY, 2019, 41(5): 1239-1253.
[14]	MAO Ze-bin, CHANG Zu-feng, LI Jian-lin, CHANG Hao, ZHAO Jin-min, CHEN Gang. LATE QUATERNARY ACTIVITY OF FAULTS IN THE EPICENTER AREA OF JINGGU M6.6 EARTHQUAKE [J]. SEISMOLOGY AND GEOLOGY, 2019, 41(4): 821-836.
[15]	XIE Zhang-di, HAN Zhu-jun. STUDY ON THE SEISMOGENIC FAULT AND DYNAMICS PARAME-TERS OF THE 2014 M_S6.6 JINGGU EARTHQUAKE IN YUNNAN [J]. SEISMOLOGY AND GEOLOGY, 2019, 41(4): 887-912.