北京地区上地壳三维细结构层析成像
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摘要
利用三维不分块地震层析成像技术对北京东北部地区的三维人工地震莫霍反射波走时数据进行反演,得到了该区上地壳的三维P波、S波慢度及波速比结构图像,三种结构不同深度的切片图像揭示出慢度和波速比分布有呈北东向和北西向展布的特征.断裂活动引起沉积不均匀造成现今的速度分布,地震大多分布在波速比较低的块体内,说明地震不仅与断裂活动有关,有可能还与物质结构和性质相关;北京地区上地壳速度结构、断裂活动和物质性质三者之间存在密切关系.
Travel-time data from 3-D Moho reflection survey in 2002 are inverted using seismic tomographic method without blocks. The upper crustal 3-D structure of slowness of P, S wave and V P/V S around Beijing area are given. The slices of three structures in different depths reveal the NE and NW trends of slowness and V P/V S distributions. The upper crustal velocity images are resulted of the sedimental heterogeneity by active seismotectonics in the area. Most of regional earthquakes occurred in low-V P/V S zones, it indicates that earthquake activities are not only related to active faults and may be linked to crustal structure and its material property. There is a close relationship among velocity structure, active faults and upper crustal materials around Beijing area.
Travel-time data from 3-D Moho reflection survey in 2002 are inverted using seismic tomographic method without blocks. The upper crustal 3-D structure of slowness of P, S wave and V P/V S around Beijing area are given. The slices of three structures in different depths reveal the NE and NW trends of slowness and V P/V S distributions. The upper crustal velocity images are resulted of the sedimental heterogeneity by active seismotectonics in the area. Most of regional earthquakes occurred in low-V P/V S zones, it indicates that earthquake activities are not only related to active faults and may be linked to crustal structure and its material property. There is a close relationship among velocity structure, active faults and upper crustal materials around Beijing area.
引文
[1]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,1989MaXY (Chiefeditor).LithosphericDynamicsAtlasofChina(inChinese).Beijing:ChinaCartographicPublishingHouse,1989
[2]丁国瑜(主编).中国岩石圈动力学概论.北京:地震出版社,1991DingGY (Chiefeditor).LithosphericDynamicsofChina.Beijing:SeismologicalPress,1991
[3]LiJH ,KuskyTM ,HuangXN .Archeanpodiformchromititesandmantletectonitesinophioliticmelange,northChinacraton:arecordofearlyoceanicmantleprocesses.GSAToday,2002,12(7):4～11
[4]李江海,冯 军,牛向龙等.华北中元古代硫化物黑烟囱发现的初步报道.岩石学报,2003,19(1):167～168LiJH ,FengJ ,NiuXL ,etal.ThepreliminaryreportonthediscoveryofblacksmokerchimneywithintheMesoproterozoicsulphidedepositofNorthChina.ActaPetrologicaSinica(inChinese),2003,19(1):167～168
[5]金安蜀,刘福田,孙永智.北京地区地壳和上地幔的三维速度结构.地球物理学报,1980,23(2):172～182JinAS ,LiuFT ,SunYZ .Three dimensionalPwavevelocitystructureofthecrustanduppermantleunderBeijingregion.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1980,23(2):172～182
[6]刘福田,曲克信,吴 华等.华北地区的地震层面成像.地球物理学报,1986,29(5):442～449LiuFT ,QuKX ,WuH ,etal.SeismictomographyofnorthChinaregion.ChineseJ.Geophys.(ActaGeophysicaSinica)(inChinese),1986,29(5):442～449
[7]ShedlockKM ,RocekerSW .ElasticwavevelocitystructureunderthecrustanduppermantlebeneaththeNorthChina.J .Geophys.Res.,1987,92:19635～19646
[8]朱露培,曾融生,刘福田.京津唐地区地壳上地幔三维P波速度结构.地球物理学报,1990,33(3):267～277ZhuLP ,ZengRS ,LiuFT .Three dimensionalPwavevelocitystructureundertheBeijingnetworkarea.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1990,33(3):267～277
[9]孙若昧,刘福田.京津唐地区地壳结构与强震的发生———I.P波速度结构.地球物理学报,1995,38(5):599～607SunRM ,LiuFT .CruststructuresandstrongearthquakesintheBeijing,Tianjin,Tangshanarea:Ⅰ.Pwavevelocitystructure.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1995,38(5):599～607
[10]孙若昧,赵燕来,吴 丹.京津唐地区地壳结构与强震的发生———Ⅱ.S波速度结构.地球物理学报,1996,39(3):347～355SunRM ,ZhaoYL ,WuD .CruststructuresandstrongearthquakesintheBeijing,Tianjin,Tangshanarea:Ⅱ.Swavevelocitystructure.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1996,39(3):347～355
[11]丁志峰.近震层析成像的理论及应用[博士论文].北京:中国地震局地球物理研究所,1999DingZF .Regionalseismictomography:theoryandapplications[Ph.D .thesis].Beijing:InstituteofGeophysics,ChinaEarthquakeAdministration,1999
[12]SunR ,LiuF ,HeJ ,ChenH .StructuralsettingofstrongearthquakesintheHuabeiareaofChina.PureAppl.Geophys.2001,158:903～918
[13]于湘伟,陈运泰,王培德.京津唐地区中上地壳三维P波速度结构.地震学报,2003,25(1):1～14YuXW ,ChenYT ,WangPD .Three dimensionalPwavevelocitystructureinBeijingTianjinTangshanarea.ActaSeismologicaSinica(inChinese),2003,25(1):1～14
[14]张先康,杨玉春,赵 平等.唐山滦县震区三维地震透射研究———中、上地壳速度层析成像.地球物理学报,1994,37(6):759～766ZhangXK ,YangYC ,ZhaoP ,etal.Three dimensionalseismictransmissionexperimentintheLuanxianearthquakeregionofNorthChina:tomographicdeterminationoftheupperandmiddlecruststructure.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1994,37(6):759～766
[15]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.见:活动断裂研究———理论与应用(6).北京:地震出版社,1998.1～16ZhangXK ,ZhuZP ,ZhangCK ,etal.StudyonstructureandtectonicofcrustanduppermantleinZhangjiakouBohaitectoniczoneanditsadjacentarea.In:StudyonActiveFault:TheoryandApplication(6)(inChinese).Beijing:SeismologicalPress,1998.1～16
[16]赵金仁,张先康,张成科等.香河—北京—涿鹿及其相邻地区壳幔构造与速度结构特征.地震地质,1999,21(1):29～36ZhaoJR ,ZhangXK ,ZhangCK ,etal.Thecrust mantletectonicsandvelocitystructurecharacteristicsinXiangheBeijingZhuluanditsadjacentareas.SeismologyandGeology(inChinese),1999,21(1):29～36
[17]张成科,张先康,赵金仁等.渤海湾及其邻区壳幔速度结构研究与综述.地震学报,2002,24(4):428～436ZhangCK ,ZhangXK ,ZhaoJR ,etal.Studyandreviewoncrust mantlevelocitystructureinBohaiBayanditsadjacentareas.ActaSeismologicaSinica(inChinese),2002,24(4):428～436
[18]TarantolaA ,NercessianA .Three dimensionalinversionwithoutblocks.Geophys.J .R .Astr.Soc.,1984,76:299～306
[19]NercessianA ,HirnA ,TarantolaA Three dimensionalseismictransmissionprospectingoftheMontDorevolcano,FranceGeophysJ R AstrSoc1984,76:307～315
[20]TarantolaA InverseProblemTheory,MethodsforDataFittingandModelParameterEstimationAmsterdam:ElsevierPress,1987.506～528
[21]杨卓欣,赵金仁,张先康等.伽师强震群区上地壳三维速度层析成像.地震学报,2002,24(2):153～161YangZX ,ZhaoJR ,ZhangXK ,etal.Seismictomographyof3DvelocityofuppercrustintheJiashistrongearthquakeswarmregion.ActaSeismologicaSinica(inChinese),2002,24(2):153～161
[2]丁国瑜(主编).中国岩石圈动力学概论.北京:地震出版社,1991DingGY (Chiefeditor).LithosphericDynamicsofChina.Beijing:SeismologicalPress,1991
[3]LiJH ,KuskyTM ,HuangXN .Archeanpodiformchromititesandmantletectonitesinophioliticmelange,northChinacraton:arecordofearlyoceanicmantleprocesses.GSAToday,2002,12(7):4～11
[4]李江海,冯 军,牛向龙等.华北中元古代硫化物黑烟囱发现的初步报道.岩石学报,2003,19(1):167～168LiJH ,FengJ ,NiuXL ,etal.ThepreliminaryreportonthediscoveryofblacksmokerchimneywithintheMesoproterozoicsulphidedepositofNorthChina.ActaPetrologicaSinica(inChinese),2003,19(1):167～168
[5]金安蜀,刘福田,孙永智.北京地区地壳和上地幔的三维速度结构.地球物理学报,1980,23(2):172～182JinAS ,LiuFT ,SunYZ .Three dimensionalPwavevelocitystructureofthecrustanduppermantleunderBeijingregion.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1980,23(2):172～182
[6]刘福田,曲克信,吴 华等.华北地区的地震层面成像.地球物理学报,1986,29(5):442～449LiuFT ,QuKX ,WuH ,etal.SeismictomographyofnorthChinaregion.ChineseJ.Geophys.(ActaGeophysicaSinica)(inChinese),1986,29(5):442～449
[7]ShedlockKM ,RocekerSW .ElasticwavevelocitystructureunderthecrustanduppermantlebeneaththeNorthChina.J .Geophys.Res.,1987,92:19635～19646
[8]朱露培,曾融生,刘福田.京津唐地区地壳上地幔三维P波速度结构.地球物理学报,1990,33(3):267～277ZhuLP ,ZengRS ,LiuFT .Three dimensionalPwavevelocitystructureundertheBeijingnetworkarea.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1990,33(3):267～277
[9]孙若昧,刘福田.京津唐地区地壳结构与强震的发生———I.P波速度结构.地球物理学报,1995,38(5):599～607SunRM ,LiuFT .CruststructuresandstrongearthquakesintheBeijing,Tianjin,Tangshanarea:Ⅰ.Pwavevelocitystructure.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1995,38(5):599～607
[10]孙若昧,赵燕来,吴 丹.京津唐地区地壳结构与强震的发生———Ⅱ.S波速度结构.地球物理学报,1996,39(3):347～355SunRM ,ZhaoYL ,WuD .CruststructuresandstrongearthquakesintheBeijing,Tianjin,Tangshanarea:Ⅱ.Swavevelocitystructure.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1996,39(3):347～355
[11]丁志峰.近震层析成像的理论及应用[博士论文].北京:中国地震局地球物理研究所,1999DingZF .Regionalseismictomography:theoryandapplications[Ph.D .thesis].Beijing:InstituteofGeophysics,ChinaEarthquakeAdministration,1999
[12]SunR ,LiuF ,HeJ ,ChenH .StructuralsettingofstrongearthquakesintheHuabeiareaofChina.PureAppl.Geophys.2001,158:903～918
[13]于湘伟,陈运泰,王培德.京津唐地区中上地壳三维P波速度结构.地震学报,2003,25(1):1～14YuXW ,ChenYT ,WangPD .Three dimensionalPwavevelocitystructureinBeijingTianjinTangshanarea.ActaSeismologicaSinica(inChinese),2003,25(1):1～14
[14]张先康,杨玉春,赵 平等.唐山滦县震区三维地震透射研究———中、上地壳速度层析成像.地球物理学报,1994,37(6):759～766ZhangXK ,YangYC ,ZhaoP ,etal.Three dimensionalseismictransmissionexperimentintheLuanxianearthquakeregionofNorthChina:tomographicdeterminationoftheupperandmiddlecruststructure.ChineseJ .Geophys.(ActaGeophysicaSinica)(inChinese),1994,37(6):759～766
[15]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.见:活动断裂研究———理论与应用(6).北京:地震出版社,1998.1～16ZhangXK ,ZhuZP ,ZhangCK ,etal.StudyonstructureandtectonicofcrustanduppermantleinZhangjiakouBohaitectoniczoneanditsadjacentarea.In:StudyonActiveFault:TheoryandApplication(6)(inChinese).Beijing:SeismologicalPress,1998.1～16
[16]赵金仁,张先康,张成科等.香河—北京—涿鹿及其相邻地区壳幔构造与速度结构特征.地震地质,1999,21(1):29～36ZhaoJR ,ZhangXK ,ZhangCK ,etal.Thecrust mantletectonicsandvelocitystructurecharacteristicsinXiangheBeijingZhuluanditsadjacentareas.SeismologyandGeology(inChinese),1999,21(1):29～36
[17]张成科,张先康,赵金仁等.渤海湾及其邻区壳幔速度结构研究与综述.地震学报,2002,24(4):428～436ZhangCK ,ZhangXK ,ZhaoJR ,etal.Studyandreviewoncrust mantlevelocitystructureinBohaiBayanditsadjacentareas.ActaSeismologicaSinica(inChinese),2002,24(4):428～436
[18]TarantolaA ,NercessianA .Three dimensionalinversionwithoutblocks.Geophys.J .R .Astr.Soc.,1984,76:299～306
[19]NercessianA ,HirnA ,TarantolaA Three dimensionalseismictransmissionprospectingoftheMontDorevolcano,FranceGeophysJ R AstrSoc1984,76:307～315
[20]TarantolaA InverseProblemTheory,MethodsforDataFittingandModelParameterEstimationAmsterdam:ElsevierPress,1987.506～528
[21]杨卓欣,赵金仁,张先康等.伽师强震群区上地壳三维速度层析成像.地震学报,2002,24(2):153～161YangZX ,ZhaoJR ,ZhangXK ,etal.Seismictomographyof3DvelocityofuppercrustintheJiashistrongearthquakeswarmregion.ActaSeismologicaSinica(inChinese),2002,24(2):153～161
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