张家口—渤海断裂带西缘壳幔过渡带研究
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摘要
利用复杂性系数、频谱分析和小波变换方法处理了穿过张家口—渤海断裂带西缘的地震测深剖面的Pm波形资料 ,研究不同构造单元壳幔过渡带的多参数特征以及它们在岩石圈构造演化中的意义 .结果表明 :不同构造单元Pm波的复杂性系数和频谱特征有较大差异 ,内蒙地轴复杂性系数小 ,莫霍面具有明显的一级间断面特征 ,怀安—张北位于张家口—渤海断裂带的西缘 ,该区域Pm波复杂性系数大并且频谱为多极值 ,Moho面为复杂的壳幔过渡带 .利用小波分析和反射率理论地震图得到该壳幔过渡带由 2～ 3层组成 ,总厚度约为 6～ 9km ,最大厚度位于怀安盆地下方 .该壳幔过渡带是大陆裂谷环境中底侵作用的产物 ,壳幔过渡带的分层特征与该区域中新生代的多期岩浆活动有密切联系 .
In this paper complexity coefficient, frequency spectrum and wavelet teansform is used to process Pm wave from deep seismic sounding (DSS) profile passing through the west margin of Zhangjiakou-Bohai fault belt. The Moho heterogeneity characteristics in different tectonic units has been obtained. The results show that the complexity coefficients and frequency spectrums have larger variation in different tectonic units. The complexity coefficients in Inner Monggolia Platform are small. Its Moho has obvious the feature of first order discontinuous interface. Huai′an-Zhangbei region are the west margin of Zhangjiakou-Bohai fault belt, this region complexity coefficients are large and frequency spectrums have multi-peak feature. Its Moho reflects feature of crust-mantle transition zone. Using wavelet analysis and the synthetic seismogram with reflectivity, the tectonic form of the crust-mantle transition zone was obtained. It consists of 2～3 layers and about 6～9km thick. The largest thickness lies under Huai′an basin. The crust-mantle transition zone is the product of uderplating in continental rift environment. Its stratification is closely related with multiperiodic magmation during Meso-Cenozoic in this region.
In this paper complexity coefficient, frequency spectrum and wavelet teansform is used to process Pm wave from deep seismic sounding (DSS) profile passing through the west margin of Zhangjiakou-Bohai fault belt. The Moho heterogeneity characteristics in different tectonic units has been obtained. The results show that the complexity coefficients and frequency spectrums have larger variation in different tectonic units. The complexity coefficients in Inner Monggolia Platform are small. Its Moho has obvious the feature of first order discontinuous interface. Huai′an-Zhangbei region are the west margin of Zhangjiakou-Bohai fault belt, this region complexity coefficients are large and frequency spectrums have multi-peak feature. Its Moho reflects feature of crust-mantle transition zone. Using wavelet analysis and the synthetic seismogram with reflectivity, the tectonic form of the crust-mantle transition zone was obtained. It consists of 2～3 layers and about 6～9km thick. The largest thickness lies under Huai′an basin. The crust-mantle transition zone is the product of uderplating in continental rift environment. Its stratification is closely related with multiperiodic magmation during Meso-Cenozoic in this region.
引文
[1] 张先康,祝治平,张成科等.张家口—渤海地震带及其两侧地壳上地幔构造与速度结构研究.活动断裂研究,1998,6:1～16ZhangXK ,ZhuZP ,ZhangCK ,etal.CrustanduppermantlestructureoftheZhangjiakouBohaiSeaseismiczone.ResearchonActiveFault,1998,6:1～16
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[3] 路凤香,郑建平,李伍平等.中国东部显生宙地幔演化的主要样式:“蘑菇云”模型.地学前缘,2000,7(1):97～107LuFX ,ZhengJP ,LiWP ,etal.ThemainevolutionpatternofPhanerozoicmantleintheeasternChina:the“MUSHROOMCLOUD”model.EarthScienceFrontiers(inChinese),2000,7(1):97～107
[4] 杜杨松,刘金辉,秦新龙等.岩浆底侵作用研究进展.自然科学进展,2003,13(3):237～242DuYS ,LiuJH ,QinXL ,etal.Researchprogressofmagmaticunderlating.ProgressinNaturalScience(inChinese),2003,13(3):237～242
[5] 邵济安,张长厚,张履桥等.关于华北盆山体系动力学模式的思考.自然科学进展,2003,13(2):218～224ShaoJA ,ZhangCH ,ZhangLQ ,etal.StudyongeodynamicmodelinNorthChinabasin ridgesystem.ProgressinNaturalScience(inChinese),2003,13(2):218～224
[6] 徐 杰,高战武,孙建宝等.区域伸展体制下盆-山构造耦合关系的探讨.地质学报,2001,75(2):165～174XuJ,GaoZW ,SunJB ,etal.ApreliminarystudyofthegouplingrelationshipbetweenbasinandmountaininextensionalenvironmentsAcaseoftheBobaiBayBasinandTaihangMountain.ActaGeologicaSinica(inChinese),2001,75(2):165～174
[7] 郑亚东,DavisGA ,王 琮等.燕山带中生代主要构造事件与板块构造背景问题.地质学报,2000,74(4):289～302ZhengYD ,DavisGA ,WangC ,etal.MajorMesozoictectoniceventsintheYanshanbeltandtheplatetectonicsetting.ActaGeologicaSinica(inChinese),2000,74(4):289～302
[8] 聂文英,祝治平,张先康等.穿过张家口—渤海地震带西缘的折射剖面所揭示的地壳上地幔构造与速度结构.地震研究,1998,21(1):94～102NieWY ,ZhuZP ,ZhangXK ,etal.Thecrustal mantletectonicsanditsvelocitystructurerevealedbytherefractionprofilepassingthroughthewestedgeoftheZhangjiakouBohaiseismicbelt.JournalofSeismologicalResearch(inChinese),1998,21(1):94～102
[9] 周雪松,宋松岩,张先康等.繁峙—太仆寺旗剖面S波资料解释及深部构造特征与地震相关性分析.中国地震,1997,13(3):253～262ZhouXS ,SongSY ,ZhangXK ,etal.InterpretationofS wavedatefromFanshiTaipusiqiDSSprofileandanalysisofcorrelationbetweendeepstructuralcharacteristicsandseismicity.EarthquakeResearchinChina(inChinese),1997,13(3):253～262
[10] 祝治平,张建狮,张先康等.张北—尚义地震区壳幔构造.中国地震,1999,15(1):65～73ZhuZP ,ZhangJS,ZhangXK ,etal.Thecrust mantlestructureinZhangbeiShangyiearthquakearea.EarthquakeResearchinChina(inChinese),1999,15(1):65～73
[11] 赖晓玲,李松林,张先康等.玛沁—兰州—靖边剖面壳幔复杂性的研究.地球物理学进展,2001,16(2):65～72LaiXL ,LiSL ,ZhangXK ,etal.Astudyonthecomplexityatthecrust uppermantletransitionzonealongMaqinLanzhouJingbiandeepseismicsounding(DSS)profile.ProgressinGeophysics(inChinese),2001,16(2):65～72
[12] 赖晓玲,张先康,李松林等.小波多分辨分析在壳幔非均匀尺度研究中的应用.地球物理学报,2003,46(1):47～53LaiXL ,ZhangXK ,LiSL ,etal.Theapplicationofwaveletmulti resolutioninthestudyofcrust mantleheterogeneousscale.ChineseJ .Geophys.(inChinese),2003,46(1):47～53
[13] 刘若新,孙建中,樊祺城等.新生代岩浆分布.见:马杏垣主编.中国岩石圈动力学地图集.北京:中国地图出版社,1989.13LiuRX ,SunJZ ,FanQC ,etal.DistributionofCenozoicmagmaticrocks.In:MaXYed.LithosphericDynamicsAtlasofChina.Beijing:ChinaCartographicPublishingHouse,1989.13
[14] 张成科,张先康,盖玉杰等.大同—阳高震区及其邻区壳幔速度结构与深部构造.地震地质,1998,20(4):391～398ZhangCK ,ZhangXK ,GeYJ,etal.Thecrust mantlevelocitystructureanddeeptectonicsintheDatongYanggaoseismicregionanditsadjacentarea.SeismologyandGeology(inChinese),1998,20(4):391～398
[15] 赖晓玲,李松林,张先康等.张北地震区三维构造特征.地学前缘,2002,9(4):383～388LaiXL ,LiSL ,ZhangXK ,etal.3DstructuralfeatureinZhangbeiearthquakeregion.EarthScienceFrontiers(inChinese),2002,9(4):383～388
[16] 阎 辉,李鲲鹏,张学工等.测井曲线的小波变换特性在自动分层中的应用.地球物理学报,2000,43(4):568～573YanH ,LiKP ,ZhangXG ,etal.Wavelettransformpropertiesofwelllogandtheirapplicationinautomaticsegmentation.ChineseJ .Geophys.(inChinese),2000,43(4):568～573
[17] 高德章,侯遵泽,唐 建.东海及邻区重力异常多尺度分解.地球物理学报,2000,43(6):842～849GaoDZ ,HouZZ ,TangJ .MultiscaleanalysisofgravityanomaliesonEastChinaSeaandadjacentregions.ChineseJ .Geophys.(inChinese),2000,43(6):842～849
[18] 师学明,王家映,张胜业等.多尺度逐次逼近遗传算法反演大地电磁资料.地球物理学报,2000,43(1):122～130ShiXM ,WangJY ,ZhangSY ,etal.Multiscalegeneticalgorithmanditsapplicationinmagnetotelluricsoundingdatainversion.ChineseJ .Geophys.(inChinese),2000,43(1):122～130
[19] 赵俊猛,汤 吉,张海江等.小波变换在地震宽角反射折射资料处理中的应用.地球物理学报,2000,43(5):666～676ZhaoJM ,TangJ ,ZhangHJ ,etal.Wavelettransformanditsapplicationindataprocessingandinterpretationofseismicreflection/refractionprofile.ChineseJ .Geophys.(inChinese),2000,43(5):666～676
[2] 刘和甫,梁慧社,李晓清等.中国东部中新生代裂陷盆地与伸展山岭耦合机制.地学前缘,2000,7(4):477～486LiuHF ,LiangHS ,LiXQ ,etal.ThecouplingmechanismsofMesozoicCenozoicriftbasinsandextensionalmountainsysteminEasternChina.EarthScienceFrontiers(inChinese),2000,7(4):477～486
[3] 路凤香,郑建平,李伍平等.中国东部显生宙地幔演化的主要样式:“蘑菇云”模型.地学前缘,2000,7(1):97～107LuFX ,ZhengJP ,LiWP ,etal.ThemainevolutionpatternofPhanerozoicmantleintheeasternChina:the“MUSHROOMCLOUD”model.EarthScienceFrontiers(inChinese),2000,7(1):97～107
[4] 杜杨松,刘金辉,秦新龙等.岩浆底侵作用研究进展.自然科学进展,2003,13(3):237～242DuYS ,LiuJH ,QinXL ,etal.Researchprogressofmagmaticunderlating.ProgressinNaturalScience(inChinese),2003,13(3):237～242
[5] 邵济安,张长厚,张履桥等.关于华北盆山体系动力学模式的思考.自然科学进展,2003,13(2):218～224ShaoJA ,ZhangCH ,ZhangLQ ,etal.StudyongeodynamicmodelinNorthChinabasin ridgesystem.ProgressinNaturalScience(inChinese),2003,13(2):218～224
[6] 徐 杰,高战武,孙建宝等.区域伸展体制下盆-山构造耦合关系的探讨.地质学报,2001,75(2):165～174XuJ,GaoZW ,SunJB ,etal.ApreliminarystudyofthegouplingrelationshipbetweenbasinandmountaininextensionalenvironmentsAcaseoftheBobaiBayBasinandTaihangMountain.ActaGeologicaSinica(inChinese),2001,75(2):165～174
[7] 郑亚东,DavisGA ,王 琮等.燕山带中生代主要构造事件与板块构造背景问题.地质学报,2000,74(4):289～302ZhengYD ,DavisGA ,WangC ,etal.MajorMesozoictectoniceventsintheYanshanbeltandtheplatetectonicsetting.ActaGeologicaSinica(inChinese),2000,74(4):289～302
[8] 聂文英,祝治平,张先康等.穿过张家口—渤海地震带西缘的折射剖面所揭示的地壳上地幔构造与速度结构.地震研究,1998,21(1):94～102NieWY ,ZhuZP ,ZhangXK ,etal.Thecrustal mantletectonicsanditsvelocitystructurerevealedbytherefractionprofilepassingthroughthewestedgeoftheZhangjiakouBohaiseismicbelt.JournalofSeismologicalResearch(inChinese),1998,21(1):94～102
[9] 周雪松,宋松岩,张先康等.繁峙—太仆寺旗剖面S波资料解释及深部构造特征与地震相关性分析.中国地震,1997,13(3):253～262ZhouXS ,SongSY ,ZhangXK ,etal.InterpretationofS wavedatefromFanshiTaipusiqiDSSprofileandanalysisofcorrelationbetweendeepstructuralcharacteristicsandseismicity.EarthquakeResearchinChina(inChinese),1997,13(3):253～262
[10] 祝治平,张建狮,张先康等.张北—尚义地震区壳幔构造.中国地震,1999,15(1):65～73ZhuZP ,ZhangJS,ZhangXK ,etal.Thecrust mantlestructureinZhangbeiShangyiearthquakearea.EarthquakeResearchinChina(inChinese),1999,15(1):65～73
[11] 赖晓玲,李松林,张先康等.玛沁—兰州—靖边剖面壳幔复杂性的研究.地球物理学进展,2001,16(2):65～72LaiXL ,LiSL ,ZhangXK ,etal.Astudyonthecomplexityatthecrust uppermantletransitionzonealongMaqinLanzhouJingbiandeepseismicsounding(DSS)profile.ProgressinGeophysics(inChinese),2001,16(2):65～72
[12] 赖晓玲,张先康,李松林等.小波多分辨分析在壳幔非均匀尺度研究中的应用.地球物理学报,2003,46(1):47～53LaiXL ,ZhangXK ,LiSL ,etal.Theapplicationofwaveletmulti resolutioninthestudyofcrust mantleheterogeneousscale.ChineseJ .Geophys.(inChinese),2003,46(1):47～53
[13] 刘若新,孙建中,樊祺城等.新生代岩浆分布.见:马杏垣主编.中国岩石圈动力学地图集.北京:中国地图出版社,1989.13LiuRX ,SunJZ ,FanQC ,etal.DistributionofCenozoicmagmaticrocks.In:MaXYed.LithosphericDynamicsAtlasofChina.Beijing:ChinaCartographicPublishingHouse,1989.13
[14] 张成科,张先康,盖玉杰等.大同—阳高震区及其邻区壳幔速度结构与深部构造.地震地质,1998,20(4):391～398ZhangCK ,ZhangXK ,GeYJ,etal.Thecrust mantlevelocitystructureanddeeptectonicsintheDatongYanggaoseismicregionanditsadjacentarea.SeismologyandGeology(inChinese),1998,20(4):391～398
[15] 赖晓玲,李松林,张先康等.张北地震区三维构造特征.地学前缘,2002,9(4):383～388LaiXL ,LiSL ,ZhangXK ,etal.3DstructuralfeatureinZhangbeiearthquakeregion.EarthScienceFrontiers(inChinese),2002,9(4):383～388
[16] 阎 辉,李鲲鹏,张学工等.测井曲线的小波变换特性在自动分层中的应用.地球物理学报,2000,43(4):568～573YanH ,LiKP ,ZhangXG ,etal.Wavelettransformpropertiesofwelllogandtheirapplicationinautomaticsegmentation.ChineseJ .Geophys.(inChinese),2000,43(4):568～573
[17] 高德章,侯遵泽,唐 建.东海及邻区重力异常多尺度分解.地球物理学报,2000,43(6):842～849GaoDZ ,HouZZ ,TangJ .MultiscaleanalysisofgravityanomaliesonEastChinaSeaandadjacentregions.ChineseJ .Geophys.(inChinese),2000,43(6):842～849
[18] 师学明,王家映,张胜业等.多尺度逐次逼近遗传算法反演大地电磁资料.地球物理学报,2000,43(1):122～130ShiXM ,WangJY ,ZhangSY ,etal.Multiscalegeneticalgorithmanditsapplicationinmagnetotelluricsoundingdatainversion.ChineseJ .Geophys.(inChinese),2000,43(1):122～130
[19] 赵俊猛,汤 吉,张海江等.小波变换在地震宽角反射折射资料处理中的应用.地球物理学报,2000,43(5):666～676ZhaoJM ,TangJ ,ZhangHJ ,etal.Wavelettransformanditsapplicationindataprocessingandinterpretationofseismicreflection/refractionprofile.ChineseJ .Geophys.(inChinese),2000,43(5):666～676
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