类中梯装置三维大功率激电成像技术研究（英文）
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摘要
类中梯装置三维激电成像技术兼顾了激电测深与激电剖面二者的特点,能快捷高效的获得测区三维电阻率及极化率信息,空间分辨率高,探测深度大。本文从类中梯装置的数据采集方式入手,阐述了采用类中梯装置进行三维激电成像的工作方式.建立了一个三维地电模型,采用类中梯装置进行三维正演模拟,并进行反演及成像。数值模拟结果表明,采用类中梯装置进行三维激电成像能较好地刻画实际地电模型的特点。以甘肃省某多金属矿为例,利用阵列式电磁法综合测量系统,进行了三维大功率激电成像技术的应用研究。实际应用结果表明,采用三维激电成像技术,可以多角度、多细节显示测区地下介质电阻率、极化率的分布情况,明确电性突变界面的延展状态,快速圈定成矿有利区。该研究对多金属矿产勘探等领域具有一定的指导性意义。
Induced polarization(IP) 3D tomography with the similar central gradient array combines IP sounding and IP profiling to retrieve 3D resistivity and polarization data rapidly.The method is characterized by high spatial resolution and large probing depth.We discuss data acquisition and 3D IP imaging procedures using the central gradient array with variable electrode distances.A 3D geoelectric model was constructed and then numerically modeled.The data modeling results suggest that this method can capture the features of real geoelectric models.The method was applied to a polymetallic mine in Gansu Province.The results suggest that IP 3D tomography captures the distribution of resistivity and polarization of subsurface media,delineating the extension of abrupt interfaces,and identifies mineralization.
Induced polarization(IP) 3D tomography with the similar central gradient array combines IP sounding and IP profiling to retrieve 3D resistivity and polarization data rapidly.The method is characterized by high spatial resolution and large probing depth.We discuss data acquisition and 3D IP imaging procedures using the central gradient array with variable electrode distances.A 3D geoelectric model was constructed and then numerically modeled.The data modeling results suggest that this method can capture the features of real geoelectric models.The method was applied to a polymetallic mine in Gansu Province.The results suggest that IP 3D tomography captures the distribution of resistivity and polarization of subsurface media,delineating the extension of abrupt interfaces,and identifies mineralization.
引文
Cardarelli,E.,Cercato,M.,and Di Filippo,G.,2007,Assessing foundation stability and soil structure interaction through integrated geophysical techniques:a case history in Rome(Italy):Near Surface Geophysics,5,141-147.
Chen,D.P.,Dai,Q.W.,Liu,H.F.,and Feng,D.S.,2014,3-D forward modeling and analysis of borehole-surface potential with gradient source:Journal of Central South University(Science and Technology)(inChinese),45(1),150-156.
Dahlin,T.,and Bernstone,C,1997,A roll-along technique for 3-D resistivity data acquisition with multielectrode arrays,Prccs.SAGEEP'97(Symposium on the Application of Geophysics to Engineering and Environmental Problems),Reno,Nevada,23-26 March1997,2,927-935.
Eaton,P,Anderson,B.,Queen,S.,et al,2010,NEWDASthe Newmont distributed IP data acquisition system:80th SEG Annual Meeting,Expanded Abstracts,1768-1772.
Johnson,T.C,Versteeg,R.J.,Ward,A.,Day-Lewis,F.D.,and Revil,A.,2010,Improved hydrogeophysical characterization and monitoring through high performance electrical geophysical modelling and inversion:Geophysics,75(4),WA27-WA41.
Karaoulis,M.,Revil,A.,Tsourlos,P.,Werkema,D.D.,and Minsley,B.J.,2013,IP4DI:A software for timelapse 2D/3-D DC-resistivity and induced polarization tomography:Computers&Geosciences,54,164-170.
Kim,J.H.,Yi,M.J.,Park,S.G.,and Kim,J.G.,2009,4-D inversion of DC resistivity monitoring data acquired over a dynamically changing earth model:Journal of Applied Geophysics,68(4),522-532.
LaBrecque,D.J.,and Yang,X.,2001,Difference inversion of ERT data:a fast inversion method for 3-D in situ monitoring:Journal of Environmental and Engineering Geophysics,5,83-90.
Li,Y,and Oldenburg,D.,2000,3-D inversion of induced polarization data:Geophysics,65,1931-1945.
Lin,P.R,Guo,P.,Shi,F.S.,Zheng,C.J.,Li,Y,Li,J.H.,and Xu,B.L.,2010,A study of the techniques for large depth and multi-function electromagnetic survey:Acta Geoscientica Sinica(inChinese),31(2),149-154.
Lin,P.R.,Zheng,C.J.,Shi,F.S.,Guo,P.,Xu,B.L.,and Zhao,Z.Y,2006,The research of integrated electromagnetic method system:Acta Geologica Sinica(in Chinese),80(10),1539-1548.
Loke,M.H.,and Barker,R.D.,1996a,Practical techniques for 3-D resistivity surveys and data inversion:Geophysical Prospecting,44,499-523.
Loke,M.H.,and Barker,R.D.,1996b,Rapid least-squares inversion of apparent resistivity pseudosections using a quasi-Newton method:Geophysical Prospecting,44,131-152.
Loke,M.H.,2002,RES3-DINV-Rapid 3-D Resistivity and IP Inversion using the least squares method:Geoelectrical Imaging 2D&3-D:Computer software manual,Geotomo Software,Malaysia.
Loke,M.H.,and Dahlin,T.,2002,A comparison of the Gauss-Newton and quasi-Newton methods in resistivity imaging inversion:Journal of Applied Geophysics,49,149-162.
Ma,W.,and Lin,X.,2015,The application of 3D time domain induced polarization to Kalagailei CopperGold mine prospecting in Xinjiang:Chinese Journal of Engineering Geophysics(in Chinese),12(2),171-175.
Miller,C.R.,Routh,P.S.,Brosten,T.R.,and McNamara,J.P.,2008,Application of time lapse ERT imaging to watershed characterization:Geophysics,73,G7-G17.
Oldenburg,D.,and Li,Y,1994,Inversion of induced polarization data:Geophysics 59,1327-1341.
Pidlisecky,A.,Haber,E.,and Knight,R.,2007,RESINVM3-D:a 3-D resistivity inversion package:Geophysics 72(2),H1-H10.
Pollock,D.,and Cirpka,O.A.,2012,Fully coupled hydrogeophysical inversion of a laboratory salt tracer experiment monitored by electrical resistivity tomography:Water Resources Research,48,W01505.
Ruan,B.Y,and Xiong,B.,2002,A finite element modeling of three-dimensional resistivity sounding with continuous conductivity:Chinese Journal of Geophysics(inChinese),45(1),131-138.
Santarato,G.,Ranieri,G.,Occhi,M.,Morelli,G.,Fischanger,F.and Gualerzi,D.,2001,Three-dimensional Electrical Resistivity Tomography to control the injection of expanding resins for the treatment and stabilization of foundation soils:Engineering Geology,119,18-30.
Sun,J.J.,Li,Y.G.and Nabighian,M.,2012,Lithology differentiation based on inversion of full waveform induced polarization data from Newmont Distributed IP Data Acquisition System(NEWDAS):82nd SEG Annual Meeting,Expanded Abstracts,1-5.
Webb,D.,Rowston,P.,and McNeill,G.,2003,A Comparison of 2D and 3-D IP from Copper Hill NSW:ASEG 16th Geophysical Conference and Exhibition,Adelaide,February.
White,M.,and Gordon,N.,2003,Deep imaging:New technology lowers cost of discovery:Canadian Mining Journal,124(3),27-28.
White,R.M.S.,Collins,S.,Denne,R.,Hee,R.,and Brown,P.,2001,A new survey design for 3-D IP inversion modelling at Copper Hill:Exploration Geophysic,32,152-155.
Xu,S.Z.,1994,The Finite Element Method in Geophysics(in Chinese):Science Press,Beijing,178-188.
Xu,S.Z.,Liu,B.,and Ruan,B.Y,1994,The finite element method for solving anomalous potential for resistivity surveys:Chinese J.Geophys.(in Chinese),37(S2),511-515.
Yang,J.G.,Zhai,J.Y,Yang,H.W.,Wang,X.H.,Xie,C.L.,Wang,X.A.,and Ren,B.C,2010a,Metallotectonics and Prospection of the Huaniushan Exhalogene Gold Silver Lead Zinc Deposit in Beishan,Gansu Province:Geotectonica et Metallogenia(in Chinese),34(2),246-254.
Yang,J.G.,Zhai,J.Y,Yang,H.W.,Wang,C.F.,Xie,C.L.,Wang,X.H.,and Lei,Y.X.,2010b,LA-ICP-MS zircon U-Pb dating of basalt and its geological significance in Huaniushan Pb-Zn deposit,Beishan area,Gansu,China:Geological Bulletin of China(in Chinese),29(7),1017-1023.
Zhou,B.,and Greenhalgh,S.A.,2001,Finite element three-dimensional direct current resistivity modeling:accuracy and efficiency considerations:Geophysical Journal International,145,679-688.
Chen,D.P.,Dai,Q.W.,Liu,H.F.,and Feng,D.S.,2014,3-D forward modeling and analysis of borehole-surface potential with gradient source:Journal of Central South University(Science and Technology)(inChinese),45(1),150-156.
Dahlin,T.,and Bernstone,C,1997,A roll-along technique for 3-D resistivity data acquisition with multielectrode arrays,Prccs.SAGEEP'97(Symposium on the Application of Geophysics to Engineering and Environmental Problems),Reno,Nevada,23-26 March1997,2,927-935.
Eaton,P,Anderson,B.,Queen,S.,et al,2010,NEWDASthe Newmont distributed IP data acquisition system:80th SEG Annual Meeting,Expanded Abstracts,1768-1772.
Johnson,T.C,Versteeg,R.J.,Ward,A.,Day-Lewis,F.D.,and Revil,A.,2010,Improved hydrogeophysical characterization and monitoring through high performance electrical geophysical modelling and inversion:Geophysics,75(4),WA27-WA41.
Karaoulis,M.,Revil,A.,Tsourlos,P.,Werkema,D.D.,and Minsley,B.J.,2013,IP4DI:A software for timelapse 2D/3-D DC-resistivity and induced polarization tomography:Computers&Geosciences,54,164-170.
Kim,J.H.,Yi,M.J.,Park,S.G.,and Kim,J.G.,2009,4-D inversion of DC resistivity monitoring data acquired over a dynamically changing earth model:Journal of Applied Geophysics,68(4),522-532.
LaBrecque,D.J.,and Yang,X.,2001,Difference inversion of ERT data:a fast inversion method for 3-D in situ monitoring:Journal of Environmental and Engineering Geophysics,5,83-90.
Li,Y,and Oldenburg,D.,2000,3-D inversion of induced polarization data:Geophysics,65,1931-1945.
Lin,P.R,Guo,P.,Shi,F.S.,Zheng,C.J.,Li,Y,Li,J.H.,and Xu,B.L.,2010,A study of the techniques for large depth and multi-function electromagnetic survey:Acta Geoscientica Sinica(inChinese),31(2),149-154.
Lin,P.R.,Zheng,C.J.,Shi,F.S.,Guo,P.,Xu,B.L.,and Zhao,Z.Y,2006,The research of integrated electromagnetic method system:Acta Geologica Sinica(in Chinese),80(10),1539-1548.
Loke,M.H.,and Barker,R.D.,1996a,Practical techniques for 3-D resistivity surveys and data inversion:Geophysical Prospecting,44,499-523.
Loke,M.H.,and Barker,R.D.,1996b,Rapid least-squares inversion of apparent resistivity pseudosections using a quasi-Newton method:Geophysical Prospecting,44,131-152.
Loke,M.H.,2002,RES3-DINV-Rapid 3-D Resistivity and IP Inversion using the least squares method:Geoelectrical Imaging 2D&3-D:Computer software manual,Geotomo Software,Malaysia.
Loke,M.H.,and Dahlin,T.,2002,A comparison of the Gauss-Newton and quasi-Newton methods in resistivity imaging inversion:Journal of Applied Geophysics,49,149-162.
Ma,W.,and Lin,X.,2015,The application of 3D time domain induced polarization to Kalagailei CopperGold mine prospecting in Xinjiang:Chinese Journal of Engineering Geophysics(in Chinese),12(2),171-175.
Miller,C.R.,Routh,P.S.,Brosten,T.R.,and McNamara,J.P.,2008,Application of time lapse ERT imaging to watershed characterization:Geophysics,73,G7-G17.
Oldenburg,D.,and Li,Y,1994,Inversion of induced polarization data:Geophysics 59,1327-1341.
Pidlisecky,A.,Haber,E.,and Knight,R.,2007,RESINVM3-D:a 3-D resistivity inversion package:Geophysics 72(2),H1-H10.
Pollock,D.,and Cirpka,O.A.,2012,Fully coupled hydrogeophysical inversion of a laboratory salt tracer experiment monitored by electrical resistivity tomography:Water Resources Research,48,W01505.
Ruan,B.Y,and Xiong,B.,2002,A finite element modeling of three-dimensional resistivity sounding with continuous conductivity:Chinese Journal of Geophysics(inChinese),45(1),131-138.
Santarato,G.,Ranieri,G.,Occhi,M.,Morelli,G.,Fischanger,F.and Gualerzi,D.,2001,Three-dimensional Electrical Resistivity Tomography to control the injection of expanding resins for the treatment and stabilization of foundation soils:Engineering Geology,119,18-30.
Sun,J.J.,Li,Y.G.and Nabighian,M.,2012,Lithology differentiation based on inversion of full waveform induced polarization data from Newmont Distributed IP Data Acquisition System(NEWDAS):82nd SEG Annual Meeting,Expanded Abstracts,1-5.
Webb,D.,Rowston,P.,and McNeill,G.,2003,A Comparison of 2D and 3-D IP from Copper Hill NSW:ASEG 16th Geophysical Conference and Exhibition,Adelaide,February.
White,M.,and Gordon,N.,2003,Deep imaging:New technology lowers cost of discovery:Canadian Mining Journal,124(3),27-28.
White,R.M.S.,Collins,S.,Denne,R.,Hee,R.,and Brown,P.,2001,A new survey design for 3-D IP inversion modelling at Copper Hill:Exploration Geophysic,32,152-155.
Xu,S.Z.,1994,The Finite Element Method in Geophysics(in Chinese):Science Press,Beijing,178-188.
Xu,S.Z.,Liu,B.,and Ruan,B.Y,1994,The finite element method for solving anomalous potential for resistivity surveys:Chinese J.Geophys.(in Chinese),37(S2),511-515.
Yang,J.G.,Zhai,J.Y,Yang,H.W.,Wang,X.H.,Xie,C.L.,Wang,X.A.,and Ren,B.C,2010a,Metallotectonics and Prospection of the Huaniushan Exhalogene Gold Silver Lead Zinc Deposit in Beishan,Gansu Province:Geotectonica et Metallogenia(in Chinese),34(2),246-254.
Yang,J.G.,Zhai,J.Y,Yang,H.W.,Wang,C.F.,Xie,C.L.,Wang,X.H.,and Lei,Y.X.,2010b,LA-ICP-MS zircon U-Pb dating of basalt and its geological significance in Huaniushan Pb-Zn deposit,Beishan area,Gansu,China:Geological Bulletin of China(in Chinese),29(7),1017-1023.
Zhou,B.,and Greenhalgh,S.A.,2001,Finite element three-dimensional direct current resistivity modeling:accuracy and efficiency considerations:Geophysical Journal International,145,679-688.