中国东北地区航磁特征及居里面分析
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摘要
中国东北地区位于西伯利亚和华北地块之间,中、新生代本区受西太平洋板块俯冲的影响,由于多期构造作用,导致地质构造形态极为复杂.本文通过分析航磁异常场,认识研究区的构造特征,并利用航磁异常数据的功率谱法反演居里等温面.航磁异常场和居里面分布特征均揭示研究区地质构造发展具有继承性;通过居里面起伏变化特征,并结合满-绥地学断面、及与大地热流分布的关系,讨论研究区地壳的热结构状态特点,结果显示居里面起伏趋势与软流圈起伏具明显的相关性;结合地震活动和地震层析成像研究,探讨了太平洋板块俯冲受阻引起岩浆和火山活动,进而导致居里面上隆的影响机制.
The Northeast China block lies among the Siberia,North China block and the west Pacific plate,along with complex geological features derived from episodic tectonics.In this paper,we analyzed aeromagnetic anomalies of Northeast China to recognize its characteristics related to the tectonics,and then used magnetic anomaly data to calculate the Curie point depth with the method of power-density spectrum analysis.Characteristics of both aeromagnetic anomalies and Curie point isotherm distribution indicate the inheritance in tectonic evolution.Compared with the heat flow distribution and Man-Sui Global Geoscience Transect(GGT),Curie point isotherms are used to discuss the thermal state of crust in study region,the result shows the close relationship between fluctuation of the Curie point isotherm and that of the asthenosphere.Based on earthquake activities feature and seismic tomography results,here we infer that the uplift of the Curie point isotherm of study region was due to the stagnancy of the subducting Pacific plate beneath northeast Asia,which also accounts for the magmatism and volcanism there.
The Northeast China block lies among the Siberia,North China block and the west Pacific plate,along with complex geological features derived from episodic tectonics.In this paper,we analyzed aeromagnetic anomalies of Northeast China to recognize its characteristics related to the tectonics,and then used magnetic anomaly data to calculate the Curie point depth with the method of power-density spectrum analysis.Characteristics of both aeromagnetic anomalies and Curie point isotherm distribution indicate the inheritance in tectonic evolution.Compared with the heat flow distribution and Man-Sui Global Geoscience Transect(GGT),Curie point isotherms are used to discuss the thermal state of crust in study region,the result shows the close relationship between fluctuation of the Curie point isotherm and that of the asthenosphere.Based on earthquake activities feature and seismic tomography results,here we infer that the uplift of the Curie point isotherm of study region was due to the stagnancy of the subducting Pacific plate beneath northeast Asia,which also accounts for the magmatism and volcanism there.
引文
[1]谢鸣谦.拼贴板块构造及其驱动机理.北京:科学出版社,2000Xie M Q.Collage Plate Tectonics and Its Driven Mechanism(inChinese).Beijing:Science Press,2000
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[5]江为为,郝天珧,刘少华等.中国东部大陆与东海海域地质构造的相关性分析.地球物理学进展,2004,19(1):75~90Jiang W W,Hao T Y,Liu S H,et al.Relativity of geologicalstructure of Chinese continental and East China Sea.Progress inGeophysics(in Chinese),2004,19(1):75~90
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[8]Bhattacharyya B K,Leu L K.Spectral analysis of gravity andmagnetic anomalies due to two-dimensional structures.Geophysics,1975,40:993~1013
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[10]Tanaka A,Okubo Y,Matsubayashi O.Curie point depth based onspectrum analysis of the magnetic anomaly data in East and SoutheastAsia.Tectonophysics,1999,306:461~470
[11]Tanaka A,Ishikawa Y.Crustal thermal regime inferred from magneticanomaly data and its relationship to seismogenic layer thickness:TheJapanese islands case study.Physics of the Earth and PlanetaryInteriors,2005,152:257~266
[12]Okubo Y,Matsushima J,Correia A.Magnetic spectral analysis inPortugal and its adjacent seas.Physics and Chemistry of the Earth,2003,28:511~519
[13]Chiozzi P,Matsushima J,Okubo Y,et al.Curie-point depth fromspectral analysis of magnetic data in central_southern Europe.Physicsof the Earth and Planetary Interiors,2005,152:267~276
[14]Blakely R J.Potential Theory in Gravity and Magnetic Applications.Cambridge University Press,1995
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[16]汪集,黄少鹏.中国大陆地区热流数据汇编(第二版).地震地质,1990,12(4):351~366Wang J Y,Huang S P.Compilation of heat flow data in the Chinacontinental area(2nd Edition).Seismology and Geology(inChinese),1990,12(4):351~366
[17]张贻侠,孙运生,张兴洲等.中国满洲里—绥芬河地学断面.北京:地质出版社,1998Zhang Y X,Sun Y S,Zhang X Z,et al.Chinese Manzhouli_Suifenhe Global Geoscience Transect(in Chinese).Beijing:Geological Publishing House,1998
[18]杨宝俊,张梅生,王璞君.中国油气区地质-地球物理解析.北京:科学出版社,2003Yang B J,Zhang M S,Wang P J.Geological-Geophysical AnalyticInterpretation of Chinese Oil and Gas Region(in Chinese).Beijing:Science Press,2003
[19]金旭,Ehara,许惠平.中国满洲里—绥芬河热流断面.科学通报,1992,40(2):161~163Jin X,Ehara,Xu H P.Thermal structure and heat flow alongChinese Manzhouli_Suifenhe GGT.Chinese Sci.Bull.(in Chinese),1996,40(2):161~163
[20]吴乾蕃,谢毅真.松辽盆地大地热流.地震地质,1985,7(2):59~63Wu Q F,Xie Y Z.Heat flow of Songliao basin.Seismology andGeology(in Chinese),1985,7(2):59~63
[21]刘嘉麒.中国火山.北京:科学出版社,1999Liu J Q.Chinese Volcano(in Chinese).Beijing:Science Press,1999
[22]赵大鹏,雷建设,唐荣余.中国东北长白山火山的起源:地震层析成像证据.科学通报,2004,49(14):1439~1447Zhao D P,Lei J S,Tang R Y.Origin of Chang Bai volcano inNortheast China:evidence of seismic tomography.Chinese Sci.Bull.(in Chinese),2004,49(14):1439~1447
[23]张立敏,唐晓明.西太平洋板块俯冲运动与中国东北深震带.地球物理学报,1983,26(4):337~339Zhang L M,Tang X M.Subduction of West Pacific Plate and deep_focal earthquake zone in Northeast China.Chinese J.Geophys.(inChinese),1983,26(4):337~339
[24]孟宪森,朱景春,孙文斌等.东北地区浅源中强震及深震与西太平洋板块俯冲.东北地震研究,1996,12(2):12~23Meng X S,Zhu J C,Sun W B,et al.Shallow moderate and deepearthquake in northeast China and western Pacific plate subduction.Seismological Research of Northeast China(in Chinese),1996,12(2):12~23
[25]汤吉,刘铁胜,江钊等.长白山天池火山区大地电磁测深初步观测.地震地质,1997,19(2):164~170Tang J,Liu T S,Jiang Z,et al.Preliminary observations of theTianchi volcano area in Changbaishan Mountain by MT method.Seismology and Geology(in Chinese),1997,19(2):164~170
[26]张先康,张成科,赵金仁等.长白山天池火山岩浆系统的深地震测深研究.地震学报,2002,24(2):135~143Zhang X K,Zhang C K,Zhao J R,et al.Deep seismic soundinginvestigation into the deep structure of the magma system inChangbaishan_Tianchi volcano region.Acta Seismologica Sinica(inChinese),2002,24(2):135~143
[27]杨卓欣,张先康,赵金仁等.长白山天池火山区三维地壳结构层析成像.地球物理学报,2005,48(1):107~115Yang Z X,Zhang X K,Zhao J R.Tomographic imaging of 3_Dcrustal structure beneath Changbaishan_Tianchi volcano region.Chinese J.Geophys.(in Chinese),2005,48(1):107~115
[2]申宁华,李春华,张贵宾等.用下扬子航磁资料计算居里等温面.长春地质学院1985年科学研究报告年鉴,1985Shen N H,Li C H,Zhang G B,et al.Using aeromagnetic data oflower Yangtze region calculate Curie point isotherm(in Chinese).Science Study Report(1985)of Changchun Geology Institute,1985
[3]刘天佑.重磁异常反演理论与方法.武汉:中国地质大学出版社,1992Liu T Y.Gravity and Magnetic Anomaly Inverse Theory and Methods(in Chinese).Wuhan:China University of Geosciences Press,1992
[4]郝天珧,刘伊克,段昶.中国东部及其领域地球物理场特征与大地构造意义.地球物理学报,1997,40(5):677~690Hao T Y,Liu Y K,Duan X.The characteristic of geophysical fieldin the East China and adjacent regions and its tectonics significance.Chinese J.Geophys.(in Chinese),1997,40(5):677~690
[5]江为为,郝天珧,刘少华等.中国东部大陆与东海海域地质构造的相关性分析.地球物理学进展,2004,19(1):75~90Jiang W W,Hao T Y,Liu S H,et al.Relativity of geologicalstructure of Chinese continental and East China Sea.Progress inGeophysics(in Chinese),2004,19(1):75~90
[6]任纪舜,姜春发,张正坤等.中国大地构造及其演化.北京:科学出版社,1980Ren J S,Jiang C F,Zhang Z K,et al.The Geotectonic Evolution ofChina(in Chinese).Beijing:Science Press,1980
[7]张庆龙,王良书,解国爱等.郯庐断裂带北延及中新生代构造体制转换问题的探讨.高校地质学报,2005,11(4):577~584Zhang Q L,Wang L S,Xie G A,et al.Discussion on northwardextension of the Tanlu fault zone and its tectonic regimetransformation.Geological J.of China Universities(in Chinese),2005,11(4):577~584
[8]Bhattacharyya B K,Leu L K.Spectral analysis of gravity andmagnetic anomalies due to two-dimensional structures.Geophysics,1975,40:993~1013
[9]Spector A,Grant F S.Statistical models for interpreting aeromagneticdata.Geophysics,1970,35:293~302
[10]Tanaka A,Okubo Y,Matsubayashi O.Curie point depth based onspectrum analysis of the magnetic anomaly data in East and SoutheastAsia.Tectonophysics,1999,306:461~470
[11]Tanaka A,Ishikawa Y.Crustal thermal regime inferred from magneticanomaly data and its relationship to seismogenic layer thickness:TheJapanese islands case study.Physics of the Earth and PlanetaryInteriors,2005,152:257~266
[12]Okubo Y,Matsushima J,Correia A.Magnetic spectral analysis inPortugal and its adjacent seas.Physics and Chemistry of the Earth,2003,28:511~519
[13]Chiozzi P,Matsushima J,Okubo Y,et al.Curie-point depth fromspectral analysis of magnetic data in central_southern Europe.Physicsof the Earth and Planetary Interiors,2005,152:267~276
[14]Blakely R J.Potential Theory in Gravity and Magnetic Applications.Cambridge University Press,1995
[15]胡圣标,何丽娟,汪集.中国大陆地区大地热流数据汇编(第三版).地球物理学报,2001,44(4):611~626Hu S B,He L J,Wang J Y.Compilation of heat flow data in theChina continental area(3nd Edition).Chinese J.Geophys.(inChinese),2001,44(4):611~626
[16]汪集,黄少鹏.中国大陆地区热流数据汇编(第二版).地震地质,1990,12(4):351~366Wang J Y,Huang S P.Compilation of heat flow data in the Chinacontinental area(2nd Edition).Seismology and Geology(inChinese),1990,12(4):351~366
[17]张贻侠,孙运生,张兴洲等.中国满洲里—绥芬河地学断面.北京:地质出版社,1998Zhang Y X,Sun Y S,Zhang X Z,et al.Chinese Manzhouli_Suifenhe Global Geoscience Transect(in Chinese).Beijing:Geological Publishing House,1998
[18]杨宝俊,张梅生,王璞君.中国油气区地质-地球物理解析.北京:科学出版社,2003Yang B J,Zhang M S,Wang P J.Geological-Geophysical AnalyticInterpretation of Chinese Oil and Gas Region(in Chinese).Beijing:Science Press,2003
[19]金旭,Ehara,许惠平.中国满洲里—绥芬河热流断面.科学通报,1992,40(2):161~163Jin X,Ehara,Xu H P.Thermal structure and heat flow alongChinese Manzhouli_Suifenhe GGT.Chinese Sci.Bull.(in Chinese),1996,40(2):161~163
[20]吴乾蕃,谢毅真.松辽盆地大地热流.地震地质,1985,7(2):59~63Wu Q F,Xie Y Z.Heat flow of Songliao basin.Seismology andGeology(in Chinese),1985,7(2):59~63
[21]刘嘉麒.中国火山.北京:科学出版社,1999Liu J Q.Chinese Volcano(in Chinese).Beijing:Science Press,1999
[22]赵大鹏,雷建设,唐荣余.中国东北长白山火山的起源:地震层析成像证据.科学通报,2004,49(14):1439~1447Zhao D P,Lei J S,Tang R Y.Origin of Chang Bai volcano inNortheast China:evidence of seismic tomography.Chinese Sci.Bull.(in Chinese),2004,49(14):1439~1447
[23]张立敏,唐晓明.西太平洋板块俯冲运动与中国东北深震带.地球物理学报,1983,26(4):337~339Zhang L M,Tang X M.Subduction of West Pacific Plate and deep_focal earthquake zone in Northeast China.Chinese J.Geophys.(inChinese),1983,26(4):337~339
[24]孟宪森,朱景春,孙文斌等.东北地区浅源中强震及深震与西太平洋板块俯冲.东北地震研究,1996,12(2):12~23Meng X S,Zhu J C,Sun W B,et al.Shallow moderate and deepearthquake in northeast China and western Pacific plate subduction.Seismological Research of Northeast China(in Chinese),1996,12(2):12~23
[25]汤吉,刘铁胜,江钊等.长白山天池火山区大地电磁测深初步观测.地震地质,1997,19(2):164~170Tang J,Liu T S,Jiang Z,et al.Preliminary observations of theTianchi volcano area in Changbaishan Mountain by MT method.Seismology and Geology(in Chinese),1997,19(2):164~170
[26]张先康,张成科,赵金仁等.长白山天池火山岩浆系统的深地震测深研究.地震学报,2002,24(2):135~143Zhang X K,Zhang C K,Zhao J R,et al.Deep seismic soundinginvestigation into the deep structure of the magma system inChangbaishan_Tianchi volcano region.Acta Seismologica Sinica(inChinese),2002,24(2):135~143
[27]杨卓欣,张先康,赵金仁等.长白山天池火山区三维地壳结构层析成像.地球物理学报,2005,48(1):107~115Yang Z X,Zhang X K,Zhao J R.Tomographic imaging of 3_Dcrustal structure beneath Changbaishan_Tianchi volcano region.Chinese J.Geophys.(in Chinese),2005,48(1):107~115
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