新疆富蕴—库尔勒剖面接收函数方法获得的地壳上地幔结构成像
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摘要
利用远震接收函数方法处理宽频地震探测数据获得富蕴—库尔勒剖面地壳上地幔结构转换波成像。中天山南缘断裂下方自南向北Moho转换界面具有向北倾斜的特征,且此转换界面有间断,深度逐步由50km加大到60~70km。北天山北缘断裂北部下方相对连续的转换界面明显以较小的幅度向南俯冲延伸到80~90km深度。中天山南缘断裂到乌鲁木齐之间,除间断、斜交和叠置的Moho转换界面外,还可见其他转换界面。乌鲁木齐以北,进入准噶尔盆地Moho转换界面相对平缓深度在50km上下,最深处靠近天山附近。天山Moho面的加深、重叠以及地震发生的深度表明本区天山构造活动较强,天山的山根深度近100km。相对于天山西段本区南北向的推挤作用明显减弱。
Teleseismic receiver functions, RFs, allow us to image the spatial variation of the converters in crust and upper mantle along the array from Fuyun to Kuerle. Some discontinuous north-dipping mantle converters are seen under Middle Tianshan South-edge Fault. The depths of such converters change gradually from 50 km to 60～70 km. A continuously south-dipping Moho converter expanding to 80～90 km with slight obliquity exists under the North Tianshan North-edge Fault. Relatively strong discontinuous and overlap Moho converters are not only one layer from Middle Tianshan south-edge Fault to Wulumuqi. Strong converte about 50 km depth under Junggar basin is relatively even. Most large depth is near Tianshan Mountains. Large depth and overlap of Moho converters and depth of local earthquakes show structure activity is relatively strong. Depth of Tianshan mountain root is near to 100 km. The south-north extrusion in the region is much more weak than that in west part of Tianshan Mountains.
Teleseismic receiver functions, RFs, allow us to image the spatial variation of the converters in crust and upper mantle along the array from Fuyun to Kuerle. Some discontinuous north-dipping mantle converters are seen under Middle Tianshan South-edge Fault. The depths of such converters change gradually from 50 km to 60～70 km. A continuously south-dipping Moho converter expanding to 80～90 km with slight obliquity exists under the North Tianshan North-edge Fault. Relatively strong discontinuous and overlap Moho converters are not only one layer from Middle Tianshan south-edge Fault to Wulumuqi. Strong converte about 50 km depth under Junggar basin is relatively even. Most large depth is near Tianshan Mountains. Large depth and overlap of Moho converters and depth of local earthquakes show structure activity is relatively strong. Depth of Tianshan mountain root is near to 100 km. The south-north extrusion in the region is much more weak than that in west part of Tianshan Mountains.
引文
董英君,姜枚,钱辉,宿和平,薛光琦.2005.青藏高原西部叶城—狮泉河地区岩石圈各向异性研究.岩石矿物学杂志,24(5):418~424.
姜常义,姜寒冰,叶书锋,夏明哲,逯东霞.2005.新疆库鲁克塔格地区二叠纪脉岩群岩石地球化学特征,Nd、Sr、Pb同位素组成与岩石成因.地质学报,79(6):823~832.
李锦轶,肖序常.1999.对新疆地壳结构与构造演化几个问题的简要评述.地质科学,34(4):405~419.
李锦轶.2004.新疆东部新元古代晚期和古生代构造格局及其演化地质评论,50(3):304~322.
李海鸥,姜枚,王有学,等.2004.青藏高原地壳的低速层与部分熔融.物探与化探,28(4):290~293.
刘训.2004.中国西北盆山地区中—新生代古地理及地壳构造演化.古地理学报,6(4):448~458.
卢德源,李秋生,高锐,李英康,李德兴,刘文,张之英.2000.横跨天山的人工爆破地震剖面.科学通报,45(9):982~987.
孙桂华,李锦铁,高立明,杨天南.2005.新疆东部哈尔里克山闪长岩锆石SHRIMPU_Pb定年及其地质意义.地质论评,51(4):463~469.
钱辉,姜枚,薛光琦,宿和平,GerardWittlinger,JeromeVergne.2001.天然地震接收函数所揭示的青藏高原东部的地壳结构.地震学报,23(1):103~108.
王有学,韩果花,姜枚,等.2004.阿尔泰—阿尔金地学断面地壳构.地球物理学报,47(2):240~249.
魏素花,薛光琦,钱辉,姜枚,等.2000.新疆库车—克拉玛依地震层析成像.地球物理学进展,15(4):46~54.
吴庆举,曾融生.1998.用宽频带远震接收函数研究青藏高原的地壳结构.地球物理学报,41(5):669~679.
吴华,李华芹,莫新华,陈富文,路远发,梅玉萍,邓岗.2005.新疆哈密白石泉铜镍矿区基性-超基性岩的形成时代及其地质意义.地质学报,79(4):498~502.
肖序常,刘训,高锐,等.2004.新疆南部地壳结构和构造演化.北京:商务印书馆.
赵俊猛,李植纯,马宗晋.2003.天山分段性的地球物理学分析.地学前缘,(10):1250~131.
BurchfielBC,MolnarP,DengQ,etal.1994.LastestCenozonicratofshorteningacrossthemarginsofTianShan,Xinjiang,ChinGeol.Soc.Am.bstr.Prog.,26:462.
CassidyJF.1992.Numericalexperimentsinbroadbandreceiverfunc-tionanalysis.Bull.Seismol.Soc.Am.,82:1453~1474.
DongYingjun,JiangMei,QianHui,XueGuangqi.2005.StudyofanisotropywithinlithosphereofwesternTibetanPlateau.ActaPetrologicaetMineralogica,24(5):418~424(inChinesewithEnglishabstract).
Galv啨A,HirnA,JiangMei,GallartJ,VoogddeB,L啨pineJC,DiazJ,WangYouxue,QianHui.2002.ModesofraisingnortheasternTibetprobedbyexplosionseismology.EarthandPlanetaryScienceLetters,203:35~43.
JiangMei,XuZhiqin,AHirn,LiuYan,DongYingjun,XueGuangqi,Qianhui.2001.TeleseimicanisotropyandcorrespondingfeaturesoftheuppermantleinTibetPlateauanditsneighboringareas.ActaGeoscientiaSinica,22(2):111~116.
JiangMei,XueGuangqi,SuHeping,QianHui,WeiSuhua,DongYingjun,KissingE,PoupinetG,WittligerG.2002.Seismicfea-turesofthecrust-uppermantlebeneathKaramay-Kuqa,Xinjiang.ContinentalDynamics,5(1):25~33.
KindR,etal.1996.EvidencefromearthquakedataforaparticallymoltencrustallayerinsouthernTibet.Science,274:1692.
KindRX,YuanJ,SaulD,NelsonSV,SobolevJ,MechieW,etal.2002.SeismicimagesofcrustanduppermantlebeneathTibet:Ev-idenceforEurasianPlateSubduction.Science,298:1219.
KosarevGR,KindSV,SobolevX,etal.1999.SeismicevidenceforadetachedindianlithosphericmantlebeneathTibet.Science,283:1306~1309.
LangstonCA,CorvallisOregon.1977.Crustalanduppermantlere-ceiverstructurefromteleseismicPandSwaves.Bull.Seism.Soc.Am.,67:713~724.
LiJinyi,XiaoXuchang.1999.Briefreviewsonsomeissuesofframe-workandtectonicevolutionofXinjiangcrustNWChina.ActaGeo-logicaSinica,34(4):405~419(inChinesewithEnglishabstract).
LiJinyi.2004.LateNeoproterozoicandPaleozoictectonicframeworkandevolutionofeasternXinjiang,NWChina.GeologicalReview,50(3):304~322(inChinesewithEnglishabstract).
LiHaiou,JiangMei,WangYouxue,ZhangYuwen.2004.Low-veloc-itylayersandpartialmeltinginQinghai-TibetPlateau.GeophysicalandGeochemicalExploration,28(4):290~293(inChinesewithEnglishabstract).
LiuXun.2004.PalaeogeographyoftheMeso-Cenozoicandcrustaltec-tonicevolutionofbasin-mountainareainnorthwesternChina.Jour-nalofPalaeogeography,6(4):448~458(inChinesewithEnglishabstract).
LuDeyuan,LiQiusheng,GaoRui,LiYingkang,LiDexing,LiuWen,ZhangZhiying.2000.DynamiteseismicprofileacroosTianShanMountains.ChineseScienceBulletin,45(9):982~987(inChinesewithEnglishabstract).
LupeiZhu,DonaldVH.1998.MohooffsetacrossthenorthernmargioftheTibetanPlateau.Science,281:1170~1172.
OwensTJ,ZandtG,TaylorSR.1984.Seismicevidenceforanan-cientriftbeneaththeCumberlandPlateau,Tennessee:AdetailedanalysisofbroadbandteleseismicPwaveforms.J.Geohpys.Res.,89:7783~7795.
QianHui,JiangMei,XueGuangqi,SuHeping,GerardWittlinger,JeromeVergne.2001.CrustalstructureofnortheasternTibetin-ferredfromreceiverfunctionanalysis.ActaSeismologicaSnica,23(1),103~108(inChinesewithEnglishabstract).
VinnikLP.1977.DetectionofwavesconvertedfromPtoSVinthemantlePhys.EarthPlanet.Iner.,15,39~45.
WangYouxue,HanGuohua,JiangMei,YuanXuecheng,WalterDMooney,RobertGColeman.2004.Crustalstructurealongthegeosciencestransectfromaltaytoaltuntagh.ChineseJournalofGeophysics,47(2):240~249(inChinesewithEnglishabstract).
WeiSuhua,XueGuangqi,QianHui,JaingMei,PoupinetG,EdiKissiling.2000.XinjiangKuche-KelamayiSeismicTomography.ProgressinGeophysics.15(4):46~54(inChinesewithEnglishabstract).
WuQingju,ZengRongsheng,1998.ThecrustalstructureofQinghai-XizangPlateauinferredfrombroadbandteleseismicwaveform.ActaGeophysicaSinica,41(5):669~679(inChinesewithEnglishab-stract).
XiaoXuchang,LiuXun,GaoRui,etal.2004.TheCrustalStructureandTectonicEvolutionofSouthernXinjiang,China.Beijing:TheCommercialPress.
YuanX,NiJ,KindR,MechieJ,SandvolE.1997.LithosphericanduppermantlestructureofsouthernTibetfromaseismologicalpas-sivesourceexperimen.J.Geophys.Res.,102:27491~27500.
YuanXuecheng.1992.Mid-AsiaGeoscienceTransect.Abstractsof29thInternationalGeologicalCongress,24(3):478.
ZhaoJunmeng,LiZhicun,MaZongji.2003.GeophysicalevidenceforsegmentationoftheTianshan.EarthScienceFrontiers,10(Sup-pl.):125~131(inChinesewithEnglishabstract).
姜常义,姜寒冰,叶书锋,夏明哲,逯东霞.2005.新疆库鲁克塔格地区二叠纪脉岩群岩石地球化学特征,Nd、Sr、Pb同位素组成与岩石成因.地质学报,79(6):823~832.
李锦轶,肖序常.1999.对新疆地壳结构与构造演化几个问题的简要评述.地质科学,34(4):405~419.
李锦轶.2004.新疆东部新元古代晚期和古生代构造格局及其演化地质评论,50(3):304~322.
李海鸥,姜枚,王有学,等.2004.青藏高原地壳的低速层与部分熔融.物探与化探,28(4):290~293.
刘训.2004.中国西北盆山地区中—新生代古地理及地壳构造演化.古地理学报,6(4):448~458.
卢德源,李秋生,高锐,李英康,李德兴,刘文,张之英.2000.横跨天山的人工爆破地震剖面.科学通报,45(9):982~987.
孙桂华,李锦铁,高立明,杨天南.2005.新疆东部哈尔里克山闪长岩锆石SHRIMPU_Pb定年及其地质意义.地质论评,51(4):463~469.
钱辉,姜枚,薛光琦,宿和平,GerardWittlinger,JeromeVergne.2001.天然地震接收函数所揭示的青藏高原东部的地壳结构.地震学报,23(1):103~108.
王有学,韩果花,姜枚,等.2004.阿尔泰—阿尔金地学断面地壳构.地球物理学报,47(2):240~249.
魏素花,薛光琦,钱辉,姜枚,等.2000.新疆库车—克拉玛依地震层析成像.地球物理学进展,15(4):46~54.
吴庆举,曾融生.1998.用宽频带远震接收函数研究青藏高原的地壳结构.地球物理学报,41(5):669~679.
吴华,李华芹,莫新华,陈富文,路远发,梅玉萍,邓岗.2005.新疆哈密白石泉铜镍矿区基性-超基性岩的形成时代及其地质意义.地质学报,79(4):498~502.
肖序常,刘训,高锐,等.2004.新疆南部地壳结构和构造演化.北京:商务印书馆.
赵俊猛,李植纯,马宗晋.2003.天山分段性的地球物理学分析.地学前缘,(10):1250~131.
BurchfielBC,MolnarP,DengQ,etal.1994.LastestCenozonicratofshorteningacrossthemarginsofTianShan,Xinjiang,ChinGeol.Soc.Am.bstr.Prog.,26:462.
CassidyJF.1992.Numericalexperimentsinbroadbandreceiverfunc-tionanalysis.Bull.Seismol.Soc.Am.,82:1453~1474.
DongYingjun,JiangMei,QianHui,XueGuangqi.2005.StudyofanisotropywithinlithosphereofwesternTibetanPlateau.ActaPetrologicaetMineralogica,24(5):418~424(inChinesewithEnglishabstract).
Galv啨A,HirnA,JiangMei,GallartJ,VoogddeB,L啨pineJC,DiazJ,WangYouxue,QianHui.2002.ModesofraisingnortheasternTibetprobedbyexplosionseismology.EarthandPlanetaryScienceLetters,203:35~43.
JiangMei,XuZhiqin,AHirn,LiuYan,DongYingjun,XueGuangqi,Qianhui.2001.TeleseimicanisotropyandcorrespondingfeaturesoftheuppermantleinTibetPlateauanditsneighboringareas.ActaGeoscientiaSinica,22(2):111~116.
JiangMei,XueGuangqi,SuHeping,QianHui,WeiSuhua,DongYingjun,KissingE,PoupinetG,WittligerG.2002.Seismicfea-turesofthecrust-uppermantlebeneathKaramay-Kuqa,Xinjiang.ContinentalDynamics,5(1):25~33.
KindR,etal.1996.EvidencefromearthquakedataforaparticallymoltencrustallayerinsouthernTibet.Science,274:1692.
KindRX,YuanJ,SaulD,NelsonSV,SobolevJ,MechieW,etal.2002.SeismicimagesofcrustanduppermantlebeneathTibet:Ev-idenceforEurasianPlateSubduction.Science,298:1219.
KosarevGR,KindSV,SobolevX,etal.1999.SeismicevidenceforadetachedindianlithosphericmantlebeneathTibet.Science,283:1306~1309.
LangstonCA,CorvallisOregon.1977.Crustalanduppermantlere-ceiverstructurefromteleseismicPandSwaves.Bull.Seism.Soc.Am.,67:713~724.
LiJinyi,XiaoXuchang.1999.Briefreviewsonsomeissuesofframe-workandtectonicevolutionofXinjiangcrustNWChina.ActaGeo-logicaSinica,34(4):405~419(inChinesewithEnglishabstract).
LiJinyi.2004.LateNeoproterozoicandPaleozoictectonicframeworkandevolutionofeasternXinjiang,NWChina.GeologicalReview,50(3):304~322(inChinesewithEnglishabstract).
LiHaiou,JiangMei,WangYouxue,ZhangYuwen.2004.Low-veloc-itylayersandpartialmeltinginQinghai-TibetPlateau.GeophysicalandGeochemicalExploration,28(4):290~293(inChinesewithEnglishabstract).
LiuXun.2004.PalaeogeographyoftheMeso-Cenozoicandcrustaltec-tonicevolutionofbasin-mountainareainnorthwesternChina.Jour-nalofPalaeogeography,6(4):448~458(inChinesewithEnglishabstract).
LuDeyuan,LiQiusheng,GaoRui,LiYingkang,LiDexing,LiuWen,ZhangZhiying.2000.DynamiteseismicprofileacroosTianShanMountains.ChineseScienceBulletin,45(9):982~987(inChinesewithEnglishabstract).
LupeiZhu,DonaldVH.1998.MohooffsetacrossthenorthernmargioftheTibetanPlateau.Science,281:1170~1172.
OwensTJ,ZandtG,TaylorSR.1984.Seismicevidenceforanan-cientriftbeneaththeCumberlandPlateau,Tennessee:AdetailedanalysisofbroadbandteleseismicPwaveforms.J.Geohpys.Res.,89:7783~7795.
QianHui,JiangMei,XueGuangqi,SuHeping,GerardWittlinger,JeromeVergne.2001.CrustalstructureofnortheasternTibetin-ferredfromreceiverfunctionanalysis.ActaSeismologicaSnica,23(1),103~108(inChinesewithEnglishabstract).
VinnikLP.1977.DetectionofwavesconvertedfromPtoSVinthemantlePhys.EarthPlanet.Iner.,15,39~45.
WangYouxue,HanGuohua,JiangMei,YuanXuecheng,WalterDMooney,RobertGColeman.2004.Crustalstructurealongthegeosciencestransectfromaltaytoaltuntagh.ChineseJournalofGeophysics,47(2):240~249(inChinesewithEnglishabstract).
WeiSuhua,XueGuangqi,QianHui,JaingMei,PoupinetG,EdiKissiling.2000.XinjiangKuche-KelamayiSeismicTomography.ProgressinGeophysics.15(4):46~54(inChinesewithEnglishabstract).
WuQingju,ZengRongsheng,1998.ThecrustalstructureofQinghai-XizangPlateauinferredfrombroadbandteleseismicwaveform.ActaGeophysicaSinica,41(5):669~679(inChinesewithEnglishab-stract).
XiaoXuchang,LiuXun,GaoRui,etal.2004.TheCrustalStructureandTectonicEvolutionofSouthernXinjiang,China.Beijing:TheCommercialPress.
YuanX,NiJ,KindR,MechieJ,SandvolE.1997.LithosphericanduppermantlestructureofsouthernTibetfromaseismologicalpas-sivesourceexperimen.J.Geophys.Res.,102:27491~27500.
YuanXuecheng.1992.Mid-AsiaGeoscienceTransect.Abstractsof29thInternationalGeologicalCongress,24(3):478.
ZhaoJunmeng,LiZhicun,MaZongji.2003.GeophysicalevidenceforsegmentationoftheTianshan.EarthScienceFrontiers,10(Sup-pl.):125~131(inChinesewithEnglishabstract).
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