东大别构造带地震地磁监测试验区岩石圈磁场特征分析
|
摘要
本文利用东大别构造带地震地磁监测试验区的地磁三分量观测数据,建立了试验区的岩石圈磁场模型,并将其与2005.0年代该区域的岩石圈磁场进行对比分析,研究试验区岩石圈磁场的时空变化特征.结果显示试验区内岩石圈磁场的分布从河南商城、安徽金寨、霍山至六安之间围绕梅山—龙河口、青山—晓天等断裂存在异常变化.
Based on three-component geomagnetic data of the seismomagnetic test area in the eastern Dabie orogen, the geomagnetic lithosphere model is established.By making a comparison of the geomagnetic lithosphere model with 2005.0 geomagnetic lithosphere model,the time-space variation features of the geomagnetic lithosphere in the test area are studied.The results show that anomalous changes of the geomagnetic field of lithosphere are present around the Meishan-Longhekou fault and QingShan-XiaoTian fault.
Based on three-component geomagnetic data of the seismomagnetic test area in the eastern Dabie orogen, the geomagnetic lithosphere model is established.By making a comparison of the geomagnetic lithosphere model with 2005.0 geomagnetic lithosphere model,the time-space variation features of the geomagnetic lithosphere in the test area are studied.The results show that anomalous changes of the geomagnetic field of lithosphere are present around the Meishan-Longhekou fault and QingShan-XiaoTian fault.
引文
[1] 徐文耀.地壳磁异常的全球模型[J].地球物理学进展,2008,23(3) :641～651． Xu W Y.Global models of the earth's crust magnetic anomalies[J].Progress in Geophysics,2008,23(3) :641～651．
[2] 徐文耀.地球电磁现象物理学[M].合肥:中国科技大学出版社,2009． Xu W Y,Physics of electromagnetic phenomena of the earth[M].Hefei:Press of University of Science and Technology of China,2009．
[3] 谢晋强,张国伟,等.西秦岭温泉岩体的磁组构特征及其侵位机制意义[J].地球物理学报,2010,53(5) :1187～1195． Xie J Q,Zhang G W,et al.Magnetic fabric studies of Wenquan granite pluton in western Qinling Mountains and implications for emplacement mechanism[J].Chinese Journal of Geophysics,2010,53(5) :1187～1195．
[4] 顾春雷,张毅,徐如刚,等.地震前后岩石圈磁场变化特征分析[J].地球物理学进展,2010,25(2) :472～477． Gu C L,Zhang Y,Xu R G,et al.Analysis of the variation characteristic in the lithospheric geomagnetic field before and after earthquakes[J].Progress in Geophysics,2010,25 (2) :472～477．
[5] 徐如刚,张毅,顾春雷,等.九江-瑞昌M_s5． 7地震前后地磁场水平分量异常追踪与分析[J].地球物理学进展,2010,25(4) :1175～1179． Xu R G,Zhang Y,Gu C L,et al.Tracing and analyzing anomalies of horizontal geomagnetic component before and after the m_s5． 7 Jiujiang-Ruichang earthquake[J].Progress in Geophysics,2010,25(4) :1175～1179．
[6] 陈洁,高德章,温宁,等.南海磁场特征研究[J].地球物理学进展,2010,25(2) :376～388． Chen J,Gao D Z,Wen N,et al.Characteristics of the Geomagnetic Field in the South China Sea[J].Progress in Geophysics,2010,25(2) :376～388．
[7] 杨文采,徐纪人,等.苏鲁大别造山带地球物理与壳幔作用[M].北京:地质出版社,2005． Yang W C,Xu J R,et al.Regional geophysics and crust-Mantle interaction in Sulu-Dabie orogenic belt[M].Beijing:Geological Publishing House,2005．
[8] 国家地震局地质研究所.郯庐断裂[M].地震出版社,1987． Institute of geology of china earthquake administration,Tan-lu fault zone[M].Earthquake Publishing House,1987．
[9] 陈宇卫,张军,庆梅,等.“霍山震情窗”小震序列运动学参数时变特征研究[J].地震,2007,27(1) :26～31． Chen Y W,Zhang J,Qing M,et al.Parameters of small earthquake sequence in “ Huoshan seismic window”[J].Earthquake,2007,27(1) :26～31．
[10] 顾左文,陈斌,高金田,等.应用NOC方法研究中国地区地磁时空变化[J].地球物理学报,2009,52(10) :2602～2612． Gu Z W,Chen B,Gao J T,et al.Research of geomagnetic spatial-temporal variations in China by the NOC method[J].Chinese Journal of Geophysics,2009,52 (10) :2602～2612．
[11] 高金田,安振昌,顾左文,等.地磁正常场的选取与地磁异常场的计算[J].地球物理学报,2005,48(1) :56～62． Gao J T,An Z C,Gu Z W,et al.Selections of the geomagnetic normal field and calculations of the geomagnetic anomalous field[J].Chinese Journal of Geophysics,2005,48(1) :56～62．
[12] 安振昌.计算震磁背景场的数学方法[J].地震地磁观测与研究,2000,21(5) :9～15． An Z C.Mathematical methods to calculate the seismogeomagnetic background field[J].Seismological Observation and Research,2000,21(5) :9～15．
[13] 顾左文,张毅,高金田,等.九江-瑞昌M_s5． 7地震地磁异常地观测与分析[J].地震学报,2006,28(6) :611～621． Gu Z W,Zhang Y,Yao T Q,et al.Observation and analysis of geomagnetic abnormity associated with the M_s5． 7 Jiujiang-Ruichang earthquake[J].ACTA Seimologica Sinica,2006,28(6) :611～621．
[14] 江来利,吴维平,储东如.大别造山带东段扬子陆块和华北陆块间缝合线带的位置[J].地球科学-中国地质大学学报,2005,30(3) :264～274． Jiang L L,Wu W P,Chu D R.Location of the Suture Zone between Yangtze and North China Blocks in Eastern Dabie Orogen[J].Earth Science-Journal of China University of Geosciences,2005,30 (3) :264～274．
[2] 徐文耀.地球电磁现象物理学[M].合肥:中国科技大学出版社,2009． Xu W Y,Physics of electromagnetic phenomena of the earth[M].Hefei:Press of University of Science and Technology of China,2009．
[3] 谢晋强,张国伟,等.西秦岭温泉岩体的磁组构特征及其侵位机制意义[J].地球物理学报,2010,53(5) :1187～1195． Xie J Q,Zhang G W,et al.Magnetic fabric studies of Wenquan granite pluton in western Qinling Mountains and implications for emplacement mechanism[J].Chinese Journal of Geophysics,2010,53(5) :1187～1195．
[4] 顾春雷,张毅,徐如刚,等.地震前后岩石圈磁场变化特征分析[J].地球物理学进展,2010,25(2) :472～477． Gu C L,Zhang Y,Xu R G,et al.Analysis of the variation characteristic in the lithospheric geomagnetic field before and after earthquakes[J].Progress in Geophysics,2010,25 (2) :472～477．
[5] 徐如刚,张毅,顾春雷,等.九江-瑞昌M_s5． 7地震前后地磁场水平分量异常追踪与分析[J].地球物理学进展,2010,25(4) :1175～1179． Xu R G,Zhang Y,Gu C L,et al.Tracing and analyzing anomalies of horizontal geomagnetic component before and after the m_s5． 7 Jiujiang-Ruichang earthquake[J].Progress in Geophysics,2010,25(4) :1175～1179．
[6] 陈洁,高德章,温宁,等.南海磁场特征研究[J].地球物理学进展,2010,25(2) :376～388． Chen J,Gao D Z,Wen N,et al.Characteristics of the Geomagnetic Field in the South China Sea[J].Progress in Geophysics,2010,25(2) :376～388．
[7] 杨文采,徐纪人,等.苏鲁大别造山带地球物理与壳幔作用[M].北京:地质出版社,2005． Yang W C,Xu J R,et al.Regional geophysics and crust-Mantle interaction in Sulu-Dabie orogenic belt[M].Beijing:Geological Publishing House,2005．
[8] 国家地震局地质研究所.郯庐断裂[M].地震出版社,1987． Institute of geology of china earthquake administration,Tan-lu fault zone[M].Earthquake Publishing House,1987．
[9] 陈宇卫,张军,庆梅,等.“霍山震情窗”小震序列运动学参数时变特征研究[J].地震,2007,27(1) :26～31． Chen Y W,Zhang J,Qing M,et al.Parameters of small earthquake sequence in “ Huoshan seismic window”[J].Earthquake,2007,27(1) :26～31．
[10] 顾左文,陈斌,高金田,等.应用NOC方法研究中国地区地磁时空变化[J].地球物理学报,2009,52(10) :2602～2612． Gu Z W,Chen B,Gao J T,et al.Research of geomagnetic spatial-temporal variations in China by the NOC method[J].Chinese Journal of Geophysics,2009,52 (10) :2602～2612．
[11] 高金田,安振昌,顾左文,等.地磁正常场的选取与地磁异常场的计算[J].地球物理学报,2005,48(1) :56～62． Gao J T,An Z C,Gu Z W,et al.Selections of the geomagnetic normal field and calculations of the geomagnetic anomalous field[J].Chinese Journal of Geophysics,2005,48(1) :56～62．
[12] 安振昌.计算震磁背景场的数学方法[J].地震地磁观测与研究,2000,21(5) :9～15． An Z C.Mathematical methods to calculate the seismogeomagnetic background field[J].Seismological Observation and Research,2000,21(5) :9～15．
[13] 顾左文,张毅,高金田,等.九江-瑞昌M_s5． 7地震地磁异常地观测与分析[J].地震学报,2006,28(6) :611～621． Gu Z W,Zhang Y,Yao T Q,et al.Observation and analysis of geomagnetic abnormity associated with the M_s5． 7 Jiujiang-Ruichang earthquake[J].ACTA Seimologica Sinica,2006,28(6) :611～621．
[14] 江来利,吴维平,储东如.大别造山带东段扬子陆块和华北陆块间缝合线带的位置[J].地球科学-中国地质大学学报,2005,30(3) :264～274． Jiang L L,Wu W P,Chu D R.Location of the Suture Zone between Yangtze and North China Blocks in Eastern Dabie Orogen[J].Earth Science-Journal of China University of Geosciences,2005,30 (3) :264～274．
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心