[1]CAO Cong,ZHAO Lingqiang,QI Yanfu,et al.Study on Deep Electrical Structure Characteristics of the Shulan Section of the Yilan-Yitong Fault Zone[J].Journal of Seismological Research,2024,47(02):245-252.[doi:10.20015/j.cnki.ISSN1000-0666.2024.0018]
Copy
Study on Deep Electrical Structure Characteristics of the Shulan Section of the Yilan-Yitong Fault Zone
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
47
Number of periods:
2024 02
Page number:
245-252
Column:
Public date:
2024-06-01
- Title:
- Study on Deep Electrical Structure Characteristics of the Shulan Section of the Yilan-Yitong Fault Zone
- Keywords:
- hot spring; chemical composition of water; hydrogen and oxygen isotope; the Quannan-Xunwu fault zone
- CLC:
- P315.2
- DOI:
- 10.20015/j.cnki.ISSN1000-0666.2024.0018
- Abstract:
- The Yilan-Yitong fault zone is an important boundary of the China-Mongolia active block and the China-Korea active block,and it is the largest fault system in Northeast China.The latest research results show that the Shulan segment of the Yilan-Yitong fault zone was intensively active in the Holocene,which challenges the previous conclusion that the fault activity in the Holocene was weak.In this paper,a broadband magnetotelluric profile data obtained at 14 measuring sites across the Shulan section of the Yilan-Yitong fault zone have been refined and inversed in 2D space,and the characteristics of the deep electrical structure along the Shulan section of the Yilan-Yitong fault zone have been obtained.The characteristics of the deep electrical structure of the blocks on both sides of the Shulan section have been obtained too.The results show that the electrical structure of the Shulan section and its adjacent areas is characterized by East-West lateral blocking; the main fault of the Shulan section is embeded in the unstable medium-low-resistivity bands extending to the middle-lower-crust,on east side and west side of the Shulan section there exist the high-resistivity bodies.Referring to the magnetotelluric detection results of other active-fault areas in Chinese Mainland,we speculate that the electrical structure feature of the Shulan section is conductive to stress accumulation and faulting.There exists earthquake risk in this area in the future.
- References:
-
蔡军涛,陈小斌.2010.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.
Cai J T,Chen X B.2010.Refined techniques for data processing and two-dimensional inversion in magnetotelluricⅡ:which data polarization mode should be used in 2D inversion?[J].Chinese Journal of Geophysics,53(11):2703-2714.(in Chinese)
操聪,赵凌强,党昊,等.2022.内蒙古狼山山前断裂中段大地电磁探测研究[J].大地测量与地球动力学,42(9):976-979.
Cao C,Zhao L Q,Dang H,et al.2022.Study on magnetotelluric detection of the middle section of Langshan piedmont fault in inner Mongolia[J].Journal of Geodesy and Geodynamics,42(9):976-979.(in Chinese)
陈乐寿,王光锷.1990.大地电磁测深法[M].北京:地质出版社,10-15.
Chen L S,Wang G E.1990.Magnetotelluric sounding[M].Beijing:Geological Publishing House,10-15.(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(Sl):11-16.
Chen X B,Zhao G Z,Zhan Y.2004.A visual integrated windows system for MT data processing and interpretation[J].Oil Geophysical Prospecting,39(S1):11-16.(in Chinese)
邓起东,张培震,冉勇康,等.2003.中国活动构造与地震活动[J].地学前缘,10(S1):66-73.
Deng Q D,Zhang P Z,Ran Y K,et al.2003a.Active tectonics and earthquake activities in China[J].Earth Science Frontiers,10(S1):66-73.(in Chinese)
荆凤,申旭辉,洪顺英,等.2006.基于遥感技术研究依兰伊通断裂带[J].地震,26(3):79-84.
Jing F,Shen X H,Hong S Y,et al.2006.A study on Yilan-Yitong fault zone based on remote sensing technology[J].Earthquake,26(3):79-84.(in Chinese)
闵伟,焦德成,周本刚,等.2011.依兰—伊通全新世活动的新发现及其意义[J].地震地质,33(1):74-79.
Min W,Jiao D C,Zhou B G,et al.2011.The significance of discovery on Holocene activity on the Yilan-Yitong fault in northeast china[J].Seismology and Geology,33(1):74-79.(in Chinese)
疏鹏,闵伟,刘玉刚,等.2014.依兰—伊通断裂方正段晚第四纪以来的构造活动及其地貌表现[J].震灾防御技术,9(2):226-237.
Shu P,Min W,Liu Y G,et al.2014.Tectonic activity and geomorphic features of the Fangzheng section of Yilan-Yitong fault in the late quaternary period[J].Technology for Earthquake Disaster Prevention,9(2):226-237.(in Chinese)
余中元,张培震,闵伟,等.2016.依舒断裂尚志段晚全新世以来的强震复发间隔:来自古地震与历史文献的约束[J].地震地质,38(4):844-861.
Yu Z Y,Zhang P Z,Min W,et al.2016.Lake Holocene average recurrence interval of great earthquakes of shangzhi part of the Yilan-Yitong fault zone,nechina:Constraints from paleo-earthquakes and historical written records[J].Seismology and Geology,38(4):844-861.(in Chinese)
詹艳,梁明剑,孙翔宇,等.2021.2021年5月22日青海玛多MS7.4地震深部环境及发震构造模式[J].地球物理学报,64(7):2232-2252.
Zhan Y,Liang M J,Sun X Y,et al.2021.Deep structure and seismogenic pattern of the 2021.5.22 Maduo(Qinghai)MS7.4 earthquake[J].Chinese Journal of Geophysics,64(7):2232-2252.(in Chinese)
赵凌强,孙翔宇,詹艳,等.2022a.2022年1月8日青海门源MS6.9级地震孕震环境和冷龙岭断裂分段延展特征[J].地球物理学报,65(4):1536-1546.
Zhao L Q,Sun X Y,Zhan Y,et al.2022a.The seismogenic model of Menyuan MS6.9 earthquake on January 8,2022,Qinghai Province and segmented extensional characteristic of the Lenglongling fault[J].Chinese Journal of Geophysics,65(4):1536-1546.(in Chinese)
赵凌强,詹艳,孙翔宇,等.2019.利用大地电磁技术揭示2016年1月21日青海门源MS6.4地震隐伏地震构造和孕震环境[J].地球物理学报,62(6):2088-2100.
Zhao L Q,Zhan Y,Sun X Y,et al.2019.The hidden seismogenic structure and dynamic environment of the 21 january Menyuan,Qinghai,MS6.4 earthquake derived from magnetotelluric imaging[J].Chinese Journal of Geophysics,62(6):2088-2100.(in Chinese)
赵凌强,詹艳,王庆良,等.2020.祁连山东端冷龙岭隆起及邻区深部电性结构与孕震构造背景[J].地球物理学报,63(3):1013-1025.
Zhao L Q,Zhan Y,Wang Q L,et al.2020a.The deep electrical structure and seismogenic background of Lenglongling uplift and its adjacent areas in the eastern and of Qilian Mountains[J].Chinese Journal of Geophysics,63(3):1013-1025.(in Chinese)
赵凌强,詹艳,王庆良,等.2022b.大地电磁数据揭示的1303年洪洞8级地震区精细结构和孕震环境[J].地震地质,44(3):686-700.
Zhao L Q,Zhan Y,Wang Q L,et al.2022b.The seismogenic structure of the 1303 Hongtong M8 earthquake inferred from magnetotelluric imaging[J].Seismology and Geology,44(3):686-700.(in Chinese)
Bibby H M,Caldwell T G,Brown C.2005.Determinable and non-determinable parameters of galvanic distortion in magnetotellurics[J].Geophys,163:915-930.
Cai J T,Chen X B,Xu X W,et al.2017.Rupture mechanism and seismotectonics of the MS6.5 Ludian earthquake inferred from three-dimensional magnetotelluric imaging[J].Geophys,44:1275-1285.
Caldwell T G,Bibby H M,Brown C,et al.2004.The magnetotelluric phase tensor[J].Geophys J Int,158:457-469.
Gu C C,Zhu G,Zhang M T,et al.2016.Features and origin timeof Mesozoic strike-slip structures in the Yilan-Yitong Fault Zone[J].ChinEarth Sci,59:2389-2410.
Gu C,Zhu G,Zhang S,et al.2017.Cenozoic evolution of the Yilan-Yitong graben in NE China:an example of graben formation controlled by pre-existing structures[J].Journal of Asian Earth Sciences,146:168-184.
Heise W,Caldwell T G,Bibby H M,et al.2008.Three-dimensional modelling of magnetotelluric data from the Rotokawa geothermal field,Taupo Volcanic Zone,New Zealand[J].Geophys J Int,173:740-750.
Min W,Liu Y G,Jiao D C,et al.2013.Evidence for Holocene activity of the Yilan-Yitong fault,northeastern section of the Tan-Lu fault zone in northeast China[J].Journal of Asian Earth Sciences,2:207-216.
Yu Z Y,Yin N,Shu P,et al.2018.Late Quaternary paleoseismicity and seismic potential of the Yilan-Yitong fault zone in NE China[J].Journal of Asian Earth Sciences,151:197-225.
Yu Z,Zhang P,Min W,et al.2017.Late Holocene slip rate and average recurrence interval of great earthquakeson the Shangzhi segment of the Yilan-Yitong fault zone,northeastern China:Constraints from paleo-earthquakes and historical written records[J].Island Arc,e12231.
Zhao G Z,Unsworth M J,Zhan Y,et al.2012.Crustal structure and rheology of the Longmenshan and Wenchuan MW7.9 earthquake epicentral area from magnetotelluric data[J].Geology,40(12):1139-1142.
Zhu G,Hu W,Song L S,et al.2015.Quaternary activity along the Tan-Lu fault zone in the BohaiBay,East China:Evidence from seismic profiles[J].Journal of Asian Earth Sciences,114:5-17.
- Similar References:
Memo
-
Last Update:
2024-03-20