邯邢地区深部找矿中非典型磁异常解释研究
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摘要
我国正面临资源短缺的局面,为扩大矿山潜在资源,迫切需要加强矿山深部的找矿、勘探和开发。因此,开展复杂磁异常的解释研究,可以作为寻找隐伏磁性矿体和扩大已知矿床储量的重要途径,对加快我国深部找矿战略的实施具有深远的指导意义。
由于隐伏磁性矿体形态和厚度变化的不确定性,对磁异常形态的深入研究和剖析更为重要,对地面磁测数据的多手段处理和解释是揭示磁性体空间分布规律和深部变化趋势的有效途径。
通过收集、整理和分析邯邢地区以往的地质、磁测和磁铁矿开采资料,了解该区的地质条件及磁异常特征,然后分析前人的工作成果,选择合适的磁异常转换与反演方法对异常进行解释研究。首先,对选定的复杂磁异常做化极、滤波和曲面延拓转换处理,分离出干扰异常,突出有用信息;其次,对转换后的磁异常作水平和垂向导数计算,突出线性构造在磁场中的反应,压制区域异常的影响,突出局部异常特征;最后,建立磁异常剖面,采用2.5D可视化技术进行剖面反演,从异常形态的细微变化上着手分析,寻找岩性组成、地质结构以及成矿带的关系,然后做出成矿预测与评价。
At present,facing the situation of resource shortages,there is an urgent need to strengthen the deep mine prospecting,exploration and development for expanding the potential resources of mining.Therefore,carrying out a study of the interpretation of complex magnetic anomalies can be an important way to search for concealed ore bodies and to expand the known mineral deposits.It is also have a far-reaching significance for accelerating the strategy implementation of deep prospecting.
As the uncertainty of changes for the shape and thickness of the concealed magnetite body , it is important to study and analyze the magnetic anomalies deeply.Using the method of processing and interpreting the magnetic survey data with many different ways is an effective way to reveal the spatial distribution and the changing trends in the depth of the magnetic body.
Select an appropriate conversion and inversion method to interpret and study he magnetic anomalies by analyzing the results of our predecessors′work and finding out the local geological conditions and magnetic anomalies through the collection,collation and analysis of the former information of the geological condition , magnetic measurement and magnetite mining in Han-Xing region.First,separate the interference signal and highlight useful information from the selected complex magnetic anomalies with the method of doing the reduction-to-pole of magnetic data,filtering and surface extension conversion.Secondly,make horizontal and vertical derivative calculation for the converted magnetic anomalies,to highlight the linear structure response in a magnetic field,suppress the impact of regional anomalies and highlight the local anomalies. Finally,establish the anomaly profile, use 2.5D visualization technology for profiling inversion,and find the relationship among the lithological combination,geological structure and metallogenic belt through analyzing the subtle changes of anomaly shape,to make metallogenic prediction and evaluation.
由于隐伏磁性矿体形态和厚度变化的不确定性,对磁异常形态的深入研究和剖析更为重要,对地面磁测数据的多手段处理和解释是揭示磁性体空间分布规律和深部变化趋势的有效途径。
通过收集、整理和分析邯邢地区以往的地质、磁测和磁铁矿开采资料,了解该区的地质条件及磁异常特征,然后分析前人的工作成果,选择合适的磁异常转换与反演方法对异常进行解释研究。首先,对选定的复杂磁异常做化极、滤波和曲面延拓转换处理,分离出干扰异常,突出有用信息;其次,对转换后的磁异常作水平和垂向导数计算,突出线性构造在磁场中的反应,压制区域异常的影响,突出局部异常特征;最后,建立磁异常剖面,采用2.5D可视化技术进行剖面反演,从异常形态的细微变化上着手分析,寻找岩性组成、地质结构以及成矿带的关系,然后做出成矿预测与评价。
At present,facing the situation of resource shortages,there is an urgent need to strengthen the deep mine prospecting,exploration and development for expanding the potential resources of mining.Therefore,carrying out a study of the interpretation of complex magnetic anomalies can be an important way to search for concealed ore bodies and to expand the known mineral deposits.It is also have a far-reaching significance for accelerating the strategy implementation of deep prospecting.
As the uncertainty of changes for the shape and thickness of the concealed magnetite body , it is important to study and analyze the magnetic anomalies deeply.Using the method of processing and interpreting the magnetic survey data with many different ways is an effective way to reveal the spatial distribution and the changing trends in the depth of the magnetic body.
Select an appropriate conversion and inversion method to interpret and study he magnetic anomalies by analyzing the results of our predecessors′work and finding out the local geological conditions and magnetic anomalies through the collection,collation and analysis of the former information of the geological condition , magnetic measurement and magnetite mining in Han-Xing region.First,separate the interference signal and highlight useful information from the selected complex magnetic anomalies with the method of doing the reduction-to-pole of magnetic data,filtering and surface extension conversion.Secondly,make horizontal and vertical derivative calculation for the converted magnetic anomalies,to highlight the linear structure response in a magnetic field,suppress the impact of regional anomalies and highlight the local anomalies. Finally,establish the anomaly profile, use 2.5D visualization technology for profiling inversion,and find the relationship among the lithological combination,geological structure and metallogenic belt through analyzing the subtle changes of anomaly shape,to make metallogenic prediction and evaluation.
引文
[1]曹新志,张旺生,孙华山.我国深部找矿研究进展综述[J].地质科学情报,2009,28(2):104~109
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[3]叶天竺,薛建玲.金属矿床深部找矿中的地质研究[J].中国地质,2007,34(5):855~869
[4]张德会,周圣华,万天丰.矿床形成深度与深部成矿预测[J].地质通报,2007,26(12):1509~1518
[5]王登红,许建祥,张家菁等.华南深部找矿有关问题探讨[J].地质学报,2008,82(7):866~872
[6] Hankson E P,Small K,Hafner R,et al.Southern California seismic network,Caltech/VSGS Element of Trinet 1997-2001[J].Seismological Research Letters,2004,20(3):577~583
[7] Johannes Schweizer,Jan Fyen,Svein Mykkeltvoit,et al.Seismic arraga[A].In:Peter Bormann Chapter 9 of New Manual of Seismological Obsevatery Proctice[C].Postsdam:GeoFforckungs Zentrum Potsdam,2002,49~52
[8] Rost S,Thomas C.Array srismology methods and application[J].Rev.Geophys,2002,40(2):49~52
[9] Jerm Hall B AJerm Hall B A. The contribution of geoscience to Canada's in-novation strategy[A].In : Smat tools and esonrces for vibrant resonrce and environmental industvies[C].2002
[10]国土资源报记者赵凡访地球物理学家滕吉文.地球深部研究迫在眉睫[N].第二版综合新闻,2006年2月7日
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[12] Teng J W.Dynamic process of substance and energy exchange in depths of the earth and formation resources[J].Geotectonica Et Metallogenia,2003,27(1):3~21
[13]滕吉文,杨立强,姚敬金,等.金属矿产资源的深部找矿、勘探与成矿的深层动力过程[J].地球物理学进展,2007,22(2):317~334
[14] Billingsley P,Lock A.Structure of districts in the contrnental framework[J].Am.Inst.Min. Metall.Engrs.Trans,1994,144:9~64
[15] Stuart G W,Jolley S J.Application of 3-D seismic attributes analysis to mine planning:Target gold deposit, South Africa[J].The leading edge,2005,7:736~739
[16] Chuili,Ripley E M,et al.Compositional variations of olivine and sulfur Isotopes in the noril sk and talnakh intrusions,siberia:Implications for ore-forming processes in dynamic magma conduits[J].Economic Geology,2003,98:69~86
[17]白文兆,尹刚伟.邯邢式铁矿成矿条件及找矿方向[J].河北地质,2006,3:21~23
[18]侯满堂,齐文.陕西深部找矿进展及找矿建议[J].陕西地质,2007,25(2):1~10
[19]赵鹏大.成矿定量预测与深部找矿[J].地学前缘,2007,14(5):142~149
[20]管志宁,郝天姚.21世纪重力和磁法勘探的展望[J].地球物理学进展,2002,7(2):237~244
[21]管志宁.地磁场与磁力勘探[M].北京:地质出版社,2005
[22]膝吉文.中国地球物理仪器和实验设备研究与研制的发展与导向[J].地球物理学进展,2005,20(2):276~281
[23]安玉林,陈玉东,黄金明.重磁勘探正反演理论方法研究的新进展[J].地学前缘,2003,10(1):141~149
[24]滕吉文,羊立强,姚敬全,刘宏臣,刘财,韩立国,张雪梅.金属矿产资源的深部找矿、勘查与成矿的深层动力过程[J].地球物理学进展,2007,22(2):317~334
[25] MORAES R A, HANSEN R O.Constrained inversion of gravity fields for complex 3-D structures[J].Geophysics,2001,66(2):501~510
[26] ZHANG Jianzhong,ZHANG Benshen, ZHOU Xixiang.Gravity anomalies with variable density contrast[J].Geophysics,2001,66(3):809~813
[27] JUAN G A.2-D inversion of gravity data using sources laterally bounded by continuous surfaces and depth-dependent density [J].Geophysics,2000,65(2):1128~1141
[28] SAILHAC P,GALDEANO A,GILBERT D,etal.Identification of sources of potential fields with the continuous wavelet transform:Complex wavelets and application to aeromagnetic profiles in French Guiana[J].J Geophys Res,2000,105:19455~10475
[29] MARTELET G,SAILHAC P,MOREAU F,etal. Characterization of geological boundaries using 1-D wavelet transform on gravity data : Theory and application to the Himalayas[J].Geophysics,2001,66 (4):1116~1129
[30]赵百民,郝天珧.反演磁性地质界面的意义与方法[J].地球物理学进展,2006,21(2):353~359
[31]张季生.位场自动反演技术的研究现状及意义[J].地球学报,2006,27(6):609~612
[32]李淑玲,孟小红,范正国,姚长利.危机矿山重磁资料精细处理与解释-以湖北省大冶铁矿为例[J].地球学报—中国地质大学学报,2007,32(4):559~563
[33]朱琳,刘怀山,张维冈,张进,李高林.解析延拓法在桃村磁法处理中的应用[J].工程地球物理学报,2008,5(6):680~685
[34]卢焱,李健,白雪山,李永占.地面磁法在隐伏铁矿勘查中的应用-以河北滦平Ⅱ号铁矿为例[J].吉林大学学报(地球科学版),2008,38(4):698~702
[35]杨金玉,张训华.Surfer和Grapher在地球物理位场延拓可视化软件开发中的应用[J].物探化探计算技术,2007,29(3):264~268
[36]刘天佑,刘大为,詹应林等.磁测资料处理新方法及在危机矿山挖潜中的应用[J].物探与化探,2006,30(5):377~381
[37]董岩峰,刘瀚,田国涛.河北省邯邢式铁矿成矿条件及找矿方向[J].河北地质,2008,4:13~15
[38]郝俊杰,郭海全,李春章,孙富海.河北省邯邢式铁矿找矿方法回顾与展望[J].地质调查与研究,2008,31(4):315~319
[39]赵鹏大.矿产勘查理论与方法[M].北京:中国地质大学出版社,2008
[40]赵鹏达、陈建平、张寿庭.“三联式”成矿预测新进展[J].地质前缘,2003,10(2):455~463
[41]裴荣富.难识别及隐伏大矿、富矿资源潜力的地质评价[M].北京:地质出版社,2001
[42]徐兴旺,蔡新平.隐伏矿床预测理论与方法的研究进展[J].地球科学进展,2000,15(1):76~83
[43]姚长利,管志宁,高德章.低纬度磁异常化极方法——压制因子法.地球物理学报[J].2003,46(5):690~695
[44]徐世浙,沈晓华,邹乐君,杨华.将航次异常从飞行高度向下延拓至地形线.地球物理学报[J].2004,47(6):1127~1130
[45]曾绍发,吴燕冈,郝立波,等.基于泊松定理的重磁异常分析方法及应用[J].吉林大学学报(地球科学版),2006,36(2):279~283
[46] Li Y and D.W.Oldenburg 3-D inversion of magnetic data [J].Geophysics,1996,61:394~40
[47] Silva J B C,Barbosa V C F,Medeiros W E.Seattering,Symmetry,and bias analysis of sourceposition estimates in Euler deconvolution and its practical implications[J].Geophysics,2001,66:1149~1156
[48] Mattew B. J. Purssl,James P. Cull.A new iterative method for computing the magnetic field at high magnetic susceptibilities[J].Geophysics,2005,70(5):53~62
[49]吴文鹏,管志宁.任意三维体重磁异常可视化反演技术.勘查地球物理地球化学文集[C].北京:地质出版社2004:36~43
[50]张胜业,潘玉玲.应用地球物理学原理[M].北京:中国地质大学出版社,2004:106~122
[2]吕古贤,曾绍金,郑大瑜,等.我国主要金属矿产矿山资源危机程度评价[M].北京:中国地大出版社,2004.1~160
[3]叶天竺,薛建玲.金属矿床深部找矿中的地质研究[J].中国地质,2007,34(5):855~869
[4]张德会,周圣华,万天丰.矿床形成深度与深部成矿预测[J].地质通报,2007,26(12):1509~1518
[5]王登红,许建祥,张家菁等.华南深部找矿有关问题探讨[J].地质学报,2008,82(7):866~872
[6] Hankson E P,Small K,Hafner R,et al.Southern California seismic network,Caltech/VSGS Element of Trinet 1997-2001[J].Seismological Research Letters,2004,20(3):577~583
[7] Johannes Schweizer,Jan Fyen,Svein Mykkeltvoit,et al.Seismic arraga[A].In:Peter Bormann Chapter 9 of New Manual of Seismological Obsevatery Proctice[C].Postsdam:GeoFforckungs Zentrum Potsdam,2002,49~52
[8] Rost S,Thomas C.Array srismology methods and application[J].Rev.Geophys,2002,40(2):49~52
[9] Jerm Hall B AJerm Hall B A. The contribution of geoscience to Canada's in-novation strategy[A].In : Smat tools and esonrces for vibrant resonrce and environmental industvies[C].2002
[10]国土资源报记者赵凡访地球物理学家滕吉文.地球深部研究迫在眉睫[N].第二版综合新闻,2006年2月7日
[11]滕吉文.地球内部物质、能量交换与资源和灾害[J].地学前缘,2001,8(3):1~8
[12] Teng J W.Dynamic process of substance and energy exchange in depths of the earth and formation resources[J].Geotectonica Et Metallogenia,2003,27(1):3~21
[13]滕吉文,杨立强,姚敬金,等.金属矿产资源的深部找矿、勘探与成矿的深层动力过程[J].地球物理学进展,2007,22(2):317~334
[14] Billingsley P,Lock A.Structure of districts in the contrnental framework[J].Am.Inst.Min. Metall.Engrs.Trans,1994,144:9~64
[15] Stuart G W,Jolley S J.Application of 3-D seismic attributes analysis to mine planning:Target gold deposit, South Africa[J].The leading edge,2005,7:736~739
[16] Chuili,Ripley E M,et al.Compositional variations of olivine and sulfur Isotopes in the noril sk and talnakh intrusions,siberia:Implications for ore-forming processes in dynamic magma conduits[J].Economic Geology,2003,98:69~86
[17]白文兆,尹刚伟.邯邢式铁矿成矿条件及找矿方向[J].河北地质,2006,3:21~23
[18]侯满堂,齐文.陕西深部找矿进展及找矿建议[J].陕西地质,2007,25(2):1~10
[19]赵鹏大.成矿定量预测与深部找矿[J].地学前缘,2007,14(5):142~149
[20]管志宁,郝天姚.21世纪重力和磁法勘探的展望[J].地球物理学进展,2002,7(2):237~244
[21]管志宁.地磁场与磁力勘探[M].北京:地质出版社,2005
[22]膝吉文.中国地球物理仪器和实验设备研究与研制的发展与导向[J].地球物理学进展,2005,20(2):276~281
[23]安玉林,陈玉东,黄金明.重磁勘探正反演理论方法研究的新进展[J].地学前缘,2003,10(1):141~149
[24]滕吉文,羊立强,姚敬全,刘宏臣,刘财,韩立国,张雪梅.金属矿产资源的深部找矿、勘查与成矿的深层动力过程[J].地球物理学进展,2007,22(2):317~334
[25] MORAES R A, HANSEN R O.Constrained inversion of gravity fields for complex 3-D structures[J].Geophysics,2001,66(2):501~510
[26] ZHANG Jianzhong,ZHANG Benshen, ZHOU Xixiang.Gravity anomalies with variable density contrast[J].Geophysics,2001,66(3):809~813
[27] JUAN G A.2-D inversion of gravity data using sources laterally bounded by continuous surfaces and depth-dependent density [J].Geophysics,2000,65(2):1128~1141
[28] SAILHAC P,GALDEANO A,GILBERT D,etal.Identification of sources of potential fields with the continuous wavelet transform:Complex wavelets and application to aeromagnetic profiles in French Guiana[J].J Geophys Res,2000,105:19455~10475
[29] MARTELET G,SAILHAC P,MOREAU F,etal. Characterization of geological boundaries using 1-D wavelet transform on gravity data : Theory and application to the Himalayas[J].Geophysics,2001,66 (4):1116~1129
[30]赵百民,郝天珧.反演磁性地质界面的意义与方法[J].地球物理学进展,2006,21(2):353~359
[31]张季生.位场自动反演技术的研究现状及意义[J].地球学报,2006,27(6):609~612
[32]李淑玲,孟小红,范正国,姚长利.危机矿山重磁资料精细处理与解释-以湖北省大冶铁矿为例[J].地球学报—中国地质大学学报,2007,32(4):559~563
[33]朱琳,刘怀山,张维冈,张进,李高林.解析延拓法在桃村磁法处理中的应用[J].工程地球物理学报,2008,5(6):680~685
[34]卢焱,李健,白雪山,李永占.地面磁法在隐伏铁矿勘查中的应用-以河北滦平Ⅱ号铁矿为例[J].吉林大学学报(地球科学版),2008,38(4):698~702
[35]杨金玉,张训华.Surfer和Grapher在地球物理位场延拓可视化软件开发中的应用[J].物探化探计算技术,2007,29(3):264~268
[36]刘天佑,刘大为,詹应林等.磁测资料处理新方法及在危机矿山挖潜中的应用[J].物探与化探,2006,30(5):377~381
[37]董岩峰,刘瀚,田国涛.河北省邯邢式铁矿成矿条件及找矿方向[J].河北地质,2008,4:13~15
[38]郝俊杰,郭海全,李春章,孙富海.河北省邯邢式铁矿找矿方法回顾与展望[J].地质调查与研究,2008,31(4):315~319
[39]赵鹏大.矿产勘查理论与方法[M].北京:中国地质大学出版社,2008
[40]赵鹏达、陈建平、张寿庭.“三联式”成矿预测新进展[J].地质前缘,2003,10(2):455~463
[41]裴荣富.难识别及隐伏大矿、富矿资源潜力的地质评价[M].北京:地质出版社,2001
[42]徐兴旺,蔡新平.隐伏矿床预测理论与方法的研究进展[J].地球科学进展,2000,15(1):76~83
[43]姚长利,管志宁,高德章.低纬度磁异常化极方法——压制因子法.地球物理学报[J].2003,46(5):690~695
[44]徐世浙,沈晓华,邹乐君,杨华.将航次异常从飞行高度向下延拓至地形线.地球物理学报[J].2004,47(6):1127~1130
[45]曾绍发,吴燕冈,郝立波,等.基于泊松定理的重磁异常分析方法及应用[J].吉林大学学报(地球科学版),2006,36(2):279~283
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