Crustal structure in the Anyuan Coal Mine and its adjacent areas of Jiangxi Province by P-wave receiver functions

作     者：Xingmian Zhang Meng Gong Jian Lü Hongxing Li Jie Hu Junwen He Jianhua Peng Bingyue Liu Xingmian Zhang;Meng Gong;Jian Lü;Hongxing Li;Jie Hu;Junwen He;Jianhua Peng;Bingyue Liu

作者机构：State Key Laboratory of Nuclear Resources and EnvironmentEast China University of TechnologyNanchang330013China Nanchang Key Laboratory of Intelligent Sensing Technology and Instruments for Geological HazardsEast China University of TechnologyNanchang330013China Jiangxi Earthquake AgencyNanchang330026China East China University of TechnologySchool of Geophysics and Measurement-Control TechnologyNanchang330013China Hunan Earthquake AgencyChangsha410004China 

出 版 物：《Earthquake Research Advances》 (地震研究进展（英文）)

年 卷 期：2024年第4卷第1期

页      面：47-58页

核心收录：

学科分类：081801[工学-矿产普查与勘探] 081802[工学-地球探测与信息技术] 081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：supported by the Spark Program of Earthquake Technology of CEA,China(XH20032) open Research Project from the State Key Laboratory of Nuclear Resources and Environment,East China University of Technology(2022NRE17) open Research Project from the State Key Laboratory of Geological Processes,Mineral Resources,China University of Geosciences(GPMR202114) the Graduate Student Innovation Fund of East China University of Technology(YC2022-s628) 

主　　题：Anyuan Coal Mine Receiver function H-κ-c stacking Crustal thickness Poisson's ratio 

摘      要：We collected high-quality teleseismic events recorded by 12 broadband seismographs deployed in the Anyuan Coal Mine and its adjacent areas in Pingxiang City,Jiangxi Province for nearly two *** H-κ-c stacking method was employed to obtain the crustal thickness and Poisson s ratio distribution,then the characteristics of crustal structure below the stations were obtained by using the time-domain linear inversion *** crustal thickness in the Anyuan Coal Mine and its adjacent areas ranges from approximately 32~35 km,with an average thickness of 33 km,which is consistent with the crustal thickness results in South China from previous studies using the receiver function *** average Poisson s ratio of the crustal bulk composition in the study area varies between 0.22 and 0.25,which is lower than the global value with a 0.27 average,indicating a predominantly intermediate-acidic or felsic crustal *** is a weak negative correlation between Poisson s ratio and crustal thickness estimates in the Anyuan Coal Mine and its adjacent areas,suggesting that the absence of mafic-ultramafic materials in the lower crust is associated with the process of crustal *** velocity inversion results indicate that the crustal structure including three velocity discontinuity interfaces,with the first at a depth of approximately 1.5 km,the second at about 10~15 km,and the third being the *** study also indicates that the results obtained by the H-κ-c stacking method are significantly better than those obtained by the H-κmethod,effectively reducing the standard deviation and dispersion of crustal thickness and vP/vSratio.