北京副中心地区燕郊断裂空间展布特征
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摘要
在北京通州副中心地区开展了高精度重力、可控源音频大地电磁测深与微动测深的综合物探工作,通过多方法解译结果的比对分析,重新厘定了燕郊断裂位置,并在其北侧新发现一条支断裂,推断结果得到了钻孔验证。研究表明,在城市复杂人文电磁干扰环境下,采用重、电、震的组合方法调查断裂构造是有效、可行的。查明燕郊断裂及其支断裂的空间展布特征,对于北京城市副中心地热资源开发利用及地质灾害防治具有重要意义。
The integrated geophysical exploration work of high-accuracy gravity,CSAMT and microtremor survey was carried out in Tongzhou District,capital subcenter of Beijing,the position of Yanjiao fault was redetermined and one new branch fault was discovered in the north of Yanjiao according to repeated comparison and analysis of different results interpreted in many ways. In addition,the results were proved by some boreholes. These surveys indicate that the utilization of combinational method of gravity,electricity and vibration to investigate the fault structure won't be feasible under the disturbance of the complex electromagnetic environment in cities.The spatial layout features of Yanjiao fault and branch fault will be significant in the development of geothermal resources and prevention of geological disasters.
The integrated geophysical exploration work of high-accuracy gravity,CSAMT and microtremor survey was carried out in Tongzhou District,capital subcenter of Beijing,the position of Yanjiao fault was redetermined and one new branch fault was discovered in the north of Yanjiao according to repeated comparison and analysis of different results interpreted in many ways. In addition,the results were proved by some boreholes. These surveys indicate that the utilization of combinational method of gravity,electricity and vibration to investigate the fault structure won't be feasible under the disturbance of the complex electromagnetic environment in cities.The spatial layout features of Yanjiao fault and branch fault will be significant in the development of geothermal resources and prevention of geological disasters.
引文
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[15]李巧灵,雷晓东,李晨.抗干扰编码电法在通州深部岩溶发育区地质构造探测中的应用[J].工程勘察,2018,46(2):71-78.Li Q L,Lei X D,Li C. Application of a coded electrical method with anti-interference ability to detect geological structures in Tongzhou karst areas[J]. Geotechnical Investigation&Surveying,2018,46(2):71-78.
[2]方迎尧,范正国,乔春贵,等.北京南部地区地球物理特征与区域地质构造[J].物探与化探,2005,29(1):5-9.Fang Y Y,Fan Z G,Qiao C G,et al. Geophysical characteristics and regional geological structures of south Beijing[J].Geophysical and Geochemical Exploration,2005,29(1):5-9.
[3]吕金波,郑桂森,李良景,等.北京平原区地质剖面的初步建立——太古宙结晶基底和元古宙地层[J].中国地质,2016,43(3):879-889.Luy J B,Zheng G S,Li L J,et al. Primary establishment of stratigraphic section in plain area of Beijing:Archean crystalline basement and Proterozoic strata[J]. Geology in China,2016,43(3):879-889.
[4]王万银,邱之云,杨永,等.位场边缘识别方法研究进展[J].地球物理学进展,2010,25(1):196-210.Wang W Y,Qiu Z Y,Yang Y,et al.Some advances in the edge recognition of the potential field[J]. Progress in Geophys,2010,25(1):196-210.
[5]张磊,白凌燕,蔡向民,等.北京南口-孙河断裂北西段综合物探剖面定位及其活动性研究[J].现代地质,2014,28(1):234-242.Zhang L,Bai L Y,Cai X M,et al. Study on the position of north west section of Nankou-Sunhe fault in Beijing and its activity[J].Geoscience,2014,28(1):234-242.
[6]何付兵,白凌燕,王继明,等.夏垫断裂带深部构造特征与第四纪活动性讨论[J].地震地质,2013,35(3):490-505.He F B,Bai L Y,Wang J M,et al. Deep structure and quaternary activies of the Xiadian fault zone[J]. Seismology and Geology,2013,35(3):490-505.
[7]徐锡伟,江娃利.用钻孔地层剖面记录恢复古地震序列:河北夏垫断裂古地震研究[J].地震地质,2000,22(1):9-19.Xu X W,Jiang W L. Reconstruction of paleoearthquake sequence using stratigraphic records from drill logs:a study at the Xiadian fault in Beijing[J].Seismology and Geology,2000,22(1):9-19.
[8]黄秀铭,汪良谋,徐杰,等.北京地区新构造运动特征[J].地震地质,1991,13(1):43-51.Huang X M,Wang L M,Xu J,et al. Characteristics of neotectonic movement in Beijing area[J]. Seismology and Geology,1991,13(1):43-51(in Chinese with English abstract).
[9]赵勇,蔡向民,王继明,等.北京平原构造断块划分及微断块第四纪活动性探讨[J].中国地质,2015,42(6):1876-1884.Zhao Y,Cai X M,Wang J M,et al.The dicision of“small blocks”of structure in Beijing plain and a discussion on the activity of micro block in quaternary period[J]. Geology in China,2015,42(6):1876-1884.
[10]高林志,丁孝忠,曹茜,等.中国晚前寒武纪年表和年代地层序列[J].中国地质,2010,37(4):1014-1020.Gao L Z,Ding X Z,Cao Q,et al. New geological time scale of late Precambrian in China and geochronology[J]. Geology in China,2010,37(4):1014-1020.
[11]马国庆,黄大年,于平,等.改进的均衡滤波器在位场数据边界识别中的应用[J].地球物理学报,2012,55(12):4288-4295.Ma G Q,Huang D N,Yu P,et al. Application of improved balancing filters to edge indentification of potential field data[J]. Chinese Journal of Geophysics,2012,55(12):4288-4295.
[12]马国庆,杜晓娟,李丽丽.位场数据边界识别的新方法——增强型水平导数法[J].地球物理学进展,2013,28(1):402-408.Ma G Q,Du X J,Li L L. New edge detection method of potential field data-enhanced horizontal derivatice method[J]. Progress in Geophysics,2013,28(1):402-408.
[13] Yuan Y,Gao J Y,Chen L N.Advantages of horizontal directional Theta method to detect the edges of full tensor gravity gradient data[J].Journal of Applied Geophysics,2016,130:53-61.
[14]胡平,刘保金,白立新,等.奥林匹克公园地区隐伏断裂综合探测[J].地球物理学报,2010,53(6):1486-1494.Hu P,Liu B J,Bai L X,et al. Synthetic exploration of the buried faults in Olympic park area[J]. Chinese Journal of Geophysics,2010,53(6):1486-1494.
[15]李巧灵,雷晓东,李晨.抗干扰编码电法在通州深部岩溶发育区地质构造探测中的应用[J].工程勘察,2018,46(2):71-78.Li Q L,Lei X D,Li C. Application of a coded electrical method with anti-interference ability to detect geological structures in Tongzhou karst areas[J]. Geotechnical Investigation&Surveying,2018,46(2):71-78.