辽宁兴城地区地球物理探测效果评价
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摘要
以辽宁兴城实验区为重点,详细分析了重力、磁力、大地电磁测深和地震勘探等不同的物探方法对研究区内地质目标的识别作用。根据重力剖面测量、磁力剖面测量、大地电磁测深以及地震勘探等方法对实验区进行野外勘探工作和详细的数据分析。结果表明,重力异常对于构造单元划分、断裂识别、基底起伏的识别等均能发挥重要的作用;磁异常对于断裂识别、不同磁性岩石单元的识别、岩浆活动的分析等方面均能发挥重要的作用;大地电磁测深,在划分构造单元、确定断裂分布、垂向地层分层方面均能提供重要信息;地震勘探横向上可划分出盆地等构造界限,纵向上可分层。
This article focuses on the analysis of geologic targets by applying multiple geophysical approaches including gravity,magnetic,mag-netotelluric( MT) detection and seismic exploration methods in Xingcheng areas of Liaoning. The geophysical data were collected during fieldwork of the studied areas,using the methods mentioned above and detailed analysis of the data were conducted. The results show that gravity anomaly analysis plays an important role in geotectonic units division,identification of rift structure and basement relief; magnetic anomalies can be used to identify the rift structure and rock units with distinctive magnetic properties and analyse the igneous activities. Magnetotelluric anomalies can significantly reflect the division of geotectonic units,distribution of faults and stratified layers. Seismic exploration can be used to identify the geological boundaries and layers.
This article focuses on the analysis of geologic targets by applying multiple geophysical approaches including gravity,magnetic,mag-netotelluric( MT) detection and seismic exploration methods in Xingcheng areas of Liaoning. The geophysical data were collected during fieldwork of the studied areas,using the methods mentioned above and detailed analysis of the data were conducted. The results show that gravity anomaly analysis plays an important role in geotectonic units division,identification of rift structure and basement relief; magnetic anomalies can be used to identify the rift structure and rock units with distinctive magnetic properties and analyse the igneous activities. Magnetotelluric anomalies can significantly reflect the division of geotectonic units,distribution of faults and stratified layers. Seismic exploration can be used to identify the geological boundaries and layers.
引文
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[3]陈维甫,吴玉诗,李铸泰,等.辽宁兴城碱厂一带金、多金属成矿地质特征及找矿前景[J].吉林地质,2011,30(2):46-51.CHEN Wei-fu,WU Yu-shi,LI Zhu-tai,et al.Metallogenetic geological features and prospective analysis of Jianchang of Xingcheng,Liaoning Province[J].Jilin Geology,2011,30(2):46-51.
[4]吴福元,杨进辉,张艳斌,等.辽西东南部中生代花岗岩时代[J].岩石学报,2006,22(2):315-325.WU Fu-yuan,YANG Jin-hui,ZHANG Yan-bin,et al.Emplacement ages of the Mesozoic granites in southeastern part of the western Liaoning Province[J].Acta Petrologica Sinica,2006,22(2):315-325.
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[6]李树文,吴琼,李宏卿,等.EGM2008重力场模型在兴城物探测量中的应用[J].世界地质,2014,33(1):209-214.LI Shu-wen,WU Qiong,LI Hong-qing,et al.Application of EGM2008 in geophysical prospecting survey in Xingcheng[J].Global Geology,2014,33(1):209-214.
[7]重力勘探资料解释手册编写组.重力勘探资料解释手册[M].北京:地质出版社,1983:367-377.Gravity Exploration Data Interpretation Manual Writing Team.Gravity exploration data explain the manual[M].Beijing:Geological Publishing House,1983:367-377.
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[9]栗学磊,李文成,王凤刚,等.重力资料聚焦反演成像改进及其应用[J].世界地质,2013,32(2):366-371.LI Xue-lei,LI Wen-cheng,WANG Feng-gang,et al.Focusing inversion image improvement and application of gravity data[J].Global Geology,2013,32(2):366-371.
[10]Avdeev D B,Kuvshinov A V,Pankratov O V,et al.Highperformance three-dimensional electromagnetic modeling using modified Neumann series:Wide-band numerical solution and examples[J].Journal of Geomagnetism and Geoelectricity,1997,49:1519-1539.
[11]曾昭发,李文奔,李静,等.辽宁兴城钓鱼台—朝阳娘娘庙地区大地电磁探测及地质意义研究[J].地球物理学进展,2013,28(5):2475-2484.ZENG Zhao-fa,LI Wen-ben,LI Jing,et al.MT detection and geological structure in Diaoyutai--Niangniangmao region[J].Progress in Geophysics,2013,28(5):2475-2484.
[12]熊小松,高锐,张兴洲,等.深地震探测揭示的华北及东北地区莫霍面深度[J].地球学报,2011,32(1):46-56.XIONG Xiao-song,GAO Rui,ZHANG Xing-zhou,et al.The moho depth of North China and Northeast China revealed by seismic detection[J].Acta Geoscientica Sinica,2011,32(1):46-56.
[13]姜弢,徐学纯,贾海青,等.辽西兴城地区深反射地震剖面初步研究[J].地球物理学报,2014,57(9):2833-2845.JIANG Tao,XU Xue-chun,JIA Hai-qing,et al.Study on deep seismic reflection profile in Xingcheng area of the western Liaoning Province[J].Chinese Journal of Geophysics,2014,57(9):2833-2845.
1刘万崧,马国庆,吴琼.深部探测关键仪器装备野外实验与示范基地重力和磁力测量实验研究[R].长春:吉林大学地球科学学院,2013.
1刘万崧,马国庆,吴琼.深部探测关键仪器装备野外实验与示范基地重力和磁力测量实验研究[R].长春:吉林大学地球科学学院,2013.
1曾昭发,李静,陈雄.辽宁兴城—娘娘庙大地电磁测深(MT)剖面野外工作总结[R].长春:吉林大学地球科学学院,2011.
1姜弢,葛利华,杨志超,等.深部探测关键仪器装备野外实验与示范基地地震实验研究专题成果报告[R].长春:吉林大学地球科学学院,2013.
1姜弢,葛利华,杨志超,等.深部探测关键仪器装备野外实验与示范基地地震实验研究专题成果报告[R].长春:吉林大学地球科学学院,2013.
2lihaifeng555.异常点检测算法分析与选择[DB/OL].Http://blog.csdn.net/lihaifeng555/article/details/4543752,2009--9--11/2014--7--1.
[2]任纪舜.中国及邻区大地构造纲要图及说明书[M].北京:地质出版社,1980:3-15.REN Ji-shun.Tectonic outline map and instructions of China and its adjacent areas[M].Beijing:Geological Publishing House,1980:3-15.
[3]陈维甫,吴玉诗,李铸泰,等.辽宁兴城碱厂一带金、多金属成矿地质特征及找矿前景[J].吉林地质,2011,30(2):46-51.CHEN Wei-fu,WU Yu-shi,LI Zhu-tai,et al.Metallogenetic geological features and prospective analysis of Jianchang of Xingcheng,Liaoning Province[J].Jilin Geology,2011,30(2):46-51.
[4]吴福元,杨进辉,张艳斌,等.辽西东南部中生代花岗岩时代[J].岩石学报,2006,22(2):315-325.WU Fu-yuan,YANG Jin-hui,ZHANG Yan-bin,et al.Emplacement ages of the Mesozoic granites in southeastern part of the western Liaoning Province[J].Acta Petrologica Sinica,2006,22(2):315-325.
[5]刘晓林,范平,郑志丰,等.辽西杨家杖子—八家子钼多金属成矿带:典型钼矿床特征及找矿远景预测[J].地质与资源,2009,18(2):110-115.LIU Xiao-lin,FAN Ping,ZHENG Zhi-feng,et al.The Yangjiazhangzhi-Bajiazi molybdenum-polymetal metallogenic belt in western Liaoning Province:characteristics of typical molybdenum deposits and prediction for exploration[J].Geology and Resources,2009,18(2):110-115.
[6]李树文,吴琼,李宏卿,等.EGM2008重力场模型在兴城物探测量中的应用[J].世界地质,2014,33(1):209-214.LI Shu-wen,WU Qiong,LI Hong-qing,et al.Application of EGM2008 in geophysical prospecting survey in Xingcheng[J].Global Geology,2014,33(1):209-214.
[7]重力勘探资料解释手册编写组.重力勘探资料解释手册[M].北京:地质出版社,1983:367-377.Gravity Exploration Data Interpretation Manual Writing Team.Gravity exploration data explain the manual[M].Beijing:Geological Publishing House,1983:367-377.
[8]焦新华,吴燕冈.重力与磁法勘探[M].北京:地质出版社,2009:306-310.JIAO Xin-hua,WU Yan-gang.Gravity and magnetic exploration[M].Beijing:Geological Publishing House,2009:306-310.
[9]栗学磊,李文成,王凤刚,等.重力资料聚焦反演成像改进及其应用[J].世界地质,2013,32(2):366-371.LI Xue-lei,LI Wen-cheng,WANG Feng-gang,et al.Focusing inversion image improvement and application of gravity data[J].Global Geology,2013,32(2):366-371.
[10]Avdeev D B,Kuvshinov A V,Pankratov O V,et al.Highperformance three-dimensional electromagnetic modeling using modified Neumann series:Wide-band numerical solution and examples[J].Journal of Geomagnetism and Geoelectricity,1997,49:1519-1539.
[11]曾昭发,李文奔,李静,等.辽宁兴城钓鱼台—朝阳娘娘庙地区大地电磁探测及地质意义研究[J].地球物理学进展,2013,28(5):2475-2484.ZENG Zhao-fa,LI Wen-ben,LI Jing,et al.MT detection and geological structure in Diaoyutai--Niangniangmao region[J].Progress in Geophysics,2013,28(5):2475-2484.
[12]熊小松,高锐,张兴洲,等.深地震探测揭示的华北及东北地区莫霍面深度[J].地球学报,2011,32(1):46-56.XIONG Xiao-song,GAO Rui,ZHANG Xing-zhou,et al.The moho depth of North China and Northeast China revealed by seismic detection[J].Acta Geoscientica Sinica,2011,32(1):46-56.
[13]姜弢,徐学纯,贾海青,等.辽西兴城地区深反射地震剖面初步研究[J].地球物理学报,2014,57(9):2833-2845.JIANG Tao,XU Xue-chun,JIA Hai-qing,et al.Study on deep seismic reflection profile in Xingcheng area of the western Liaoning Province[J].Chinese Journal of Geophysics,2014,57(9):2833-2845.
1刘万崧,马国庆,吴琼.深部探测关键仪器装备野外实验与示范基地重力和磁力测量实验研究[R].长春:吉林大学地球科学学院,2013.
1刘万崧,马国庆,吴琼.深部探测关键仪器装备野外实验与示范基地重力和磁力测量实验研究[R].长春:吉林大学地球科学学院,2013.
1曾昭发,李静,陈雄.辽宁兴城—娘娘庙大地电磁测深(MT)剖面野外工作总结[R].长春:吉林大学地球科学学院,2011.
1姜弢,葛利华,杨志超,等.深部探测关键仪器装备野外实验与示范基地地震实验研究专题成果报告[R].长春:吉林大学地球科学学院,2013.
1姜弢,葛利华,杨志超,等.深部探测关键仪器装备野外实验与示范基地地震实验研究专题成果报告[R].长春:吉林大学地球科学学院,2013.
2lihaifeng555.异常点检测算法分析与选择[DB/OL].Http://blog.csdn.net/lihaifeng555/article/details/4543752,2009--9--11/2014--7--1.
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