西南天山—塔里木盆地结合带浅深构造关系——深地震反射剖面的初步揭露
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
盆山结合部的浅-深结构样式是进行陆内造山动力学研究与讨论的重要依据.2007年,在喀什东的天山与塔里木盆地之间的过渡带上,完成了一条近南北向的长度为121km的主动源深地震反射剖面,显示出盆山结合部现今地壳尺度的构造格架.剖面南部呈现出10~12km巨厚的沉积盖层,沉积盖层内发育滑脱断层;盆山结合部多排隆起构造以及天山山前上地壳显现出向北倾斜的断裂与地表地质观察吻合;盆山结合带展现出滑脱与逆冲推覆构造相关的断层褶皱;与塔里木盆地稳定沉积层相比,在南天山浅、中层地层受到强烈的变形改造,导致地层比较破碎,反射变弱、连续性较差;时间剖面上可以追踪到比较连续的Moho反射,从南向北有加深的趋势.深地震反射剖面揭露出的西南天山与塔里木盆地的这些浅-深构造,展现出塔里木盆地盖层向南天山滑脱与南天山向塔里木盆地逆冲推覆的特征,反映出陆内汇聚下的盆山耦合关系.
Shallow-deep structure relationships for the junction belt is the import basis for the research and discussion of intracontinental orogenic dynamics.A deep seismic reflection profile of 121 km long,running in nearly SN direction,deployed in the junction zone between South Tianshan and Tarim basin to the east of Kashi,was completed in 2007.The profile shows nowadays lithospheric tectonic framework of this junction zone.From south to north,for upper crust structure observed from the profile is the folded sedimentary cover with huge 10~12 km thick and detachment fault developed within the sedimentary cover.Fold-thrust belt can be divided into several rows of anticlines,including Muziduke anticline,Tashipisake anticline,Keketamu-Artux anticline,Kashi anticline,and northward incline faults are matched with geology observation.Fault-related folds were generated in association with detachment faults and thrust faults in this junction basin-range region.In the north part of the profile,comparing with continuous reflection of Tarim basin,the discontinuous reflection of middle and shallow crust beneath Tianshan Mountain which is weak and distorted indicate that strong deformation undertaken with the formation making it more broken.Continuous reflection Moho,being well defined along this profile,shows the trend deepened from the south and a little upward in the middle then deepens to the north within 1 s disparity.The image of the deep structures determines the coupling relationship between the Tarim basin and the Tianshan Mountains,features the detachment of the sedimentary cover of the Tarim basin towards the South Tianshan and the corresponding thrusting of the South Tianshan towards the Tarim basin under the process of intra-continental convergence.
引文
[1]Neil E A,Houseman G A.Geodynamics of the Tarim Basinand the Tian Shan in Central Asia.Tectonics,1997,16(4):571-584.
    [2]张培震,邓启东,杨晓平等.天山的晚新生代构造变形及其地球动力学问题.中国地震,1996,12(2):127-140.Zhang P Z,Deng Q D,Yang X P,et al.Late Cenozoictectonic deformation and mechanism along the TianshanMountain,Northwestern China.Earthquakes Research inChina(in Chinese),1996,12(2):127-140.
    [3]蔡立国.天山陆内俯冲造山转换带的基本特征.石油实验地质,2000,22(3):206-209.Cai L G.The transfer zone within intra-continent subductionorogenic belt in the Tianshan,Northwest China.ExperimentalPetroleum Geology(in Chinese),2000,22(3):206-209.
    [4]肖安成,贾承造,杨树锋等.中国南天山西部冲断褶皱系前缘区的运动学特征.沉积学报,2000,18(3):439-444.Xiao A C,Jia C Z,Yang S F,et al.The kinematicscharacters of the thrust-fold belts western front regions insouthern Tianshan,China.Acta Sedimentologica Sinica(inChinese),2000,18(3):439-444.
    [5]舒良树,郭召杰,朱文斌等.天山地区碰撞后构造与盆山演化.高校地质学报,2004,10(3):393-404.Shu L S,Guo Z J,Zhu W B,et al.Post-collision tectonismand Basin-Range evolution in the Tianshan Belt.GeologicalJournal of China Universities(in Chinese),2004,10(3):393-404.
    [6]汪新,贾承造,杨树锋.南天山库车褶皱冲断带构造几何学和运动学.地质科学,2002,37(3):372-384.Wang X,Jia C Z,Yang S F.Geometry and kinematics of theKuqa fold-and-thrust belt in the Southern Tianshan.ChineseJournal of Geology(in Chinese),2002,37(3):372-384.
    [7]Molnar P,Tapponnier P.Cenozoic tectonics of Asia:Effectsof a continental collision.Science,1975,189(4201):419-426.
    [8]Tapponnier P,Molnar P.Active faulting and tectonics inChina.J.Geophys.Res.,1977,82(20):2905-2929.
    [9]Sobel E R,Dumitru T A.Thrusting and exhumation aroundthe margins of the western Tarim basin during the India-Asiacollision.J.Geophys.Res.,1997,102(B3):5043-5063.
    [10]Allen M B,Vincent S J,Wheeler P J.Late Cenozoictectonics of the Kepingtage thrust zone:interactions of theTien Shan and Tarim Basin,Northwest China.Tectonics,1999,18(4):639-654.
    [11]高锐,肖序常,高弘等.西昆仑—塔里木—天山岩石圈深地震探测综述.地质通报,2002,21(1):11-18.Gao R,Xiao X C,Gao H,et al.Summary of deep seismicprobing of the lithospheric structure across the West Kunlun-Tarim-Tianshan.Geological Bulletin of China(in Chinese),2002,21(1):11-18.
    [12]贾承造,魏国齐,李本亮等.中国中西部两期前陆盆地的形成及其控气作用.石油学报,2003,24(2):13-17.Jia C Z,Wei G Q,Li B L,et al.Tectonic evolution of two-epoch foreland basins and its control for natural gasaccumulation in China′s mid-western areas.Acta PetroleiSinica(in Chinese),2003,24(2):13-17.
    [13]Yin A,Nie S,Craig P,et al.Late Cenozoic tectonicevolution of the southern Chinese Tian Shan.Tectonics,1998,17(1):1-27.
    [14]王琪,丁国瑜,乔学军等.天山现今地壳快速缩短与南北地块的相对运动.科学通报,2000,45(14):1543-1547.Wang Q,Ding G Y,Qiao X J,et al.Rapid crustalshortening and relative motion of crustal blocks in theTianshan.Chinese Science Bulletin(in Chinese),2000,45(14):1543-1547.
    [15]Vergolle M,Calais E,Dong L.Dynamics of continentaldeformation in Asia.J.Geophys.Res.,2007,112:B11403,doi:10.1029/2006JB004807.
    [16]Chen J,Burbank D W,Scharer K M,et al.Magnetochronology of the Upper Cenozoic strata in theSouthwestern Chinese Tianshan:rates of Pleistocene foldingand thrusting.Earth and Planetary Science Letters,2002,195(1-2):113-130.
    [17]赵金仁,张先康,张成科等.伽师—阿图什震区地壳深部结构特征的探测与研究.中国地震,2002,18(4):317-325.Zhao J R,Zhang X K,Zhang C K,et al.The detection andresearch of the deep crust tectonic characters at the Jiashi-Artux Seismic Region.Earthquake Research in China(inChinese),2002,18(4):317-325.
    [18]刘树根,罗志立,赵锡奎等.试论中国西部陆内俯冲型前陆盆地的基本特征.石油与天然气地质,2005,26(1):37-48,56.Liu S G,Luo Z L,Zhao X K,et al.Discussion on essentialcharacteristics of intracontinental-subduction type forelandbasins in western China.Oil and Gas Geology(in Chinese),2005,26(1):37-48,56.
    [19]Makarov V I,Alekseev D V,Batalev V Y,et al.Underthrusting of Tarim beneath the Tien Shan and deepstructure of their junction zone:Main results of seismicexperiment along MANAS Profile Kashgar-Song-Kol.Geotectonics,2010,44(2):23-42.
    [20]卢德源,李秋生,高锐等.横跨天山的人工爆炸地震剖面.科学通报,2000,45(9):982-987.Lu D Y,Li Q S,Gao R,et al.A deep seismic soundingprofile across the Tianshan mountains.Chinese ScienceBulletin(in Chinese),2000,45(9):982-987.
    [21]张先康,赵金仁,张成科等.帕米尔东北侧地壳结构研究.地球物理学报,2002,45(5):665-671.Zhang X K,Zhao J R,Zhang C K,et al.Crustal structure atthe northeast side of the Pamirs.Chinese J.Geophys.(inChinese),2002,45(5):665-671.
    [22]赵俊猛.天山造山带岩石圈结构与动力学.北京:地震出版社,2005.Zhao J M.Lithospheric Structure and Geodynamics ofTianshan Orogenic Belt(in Chinese).Beijing:SeismologicalPress,2005.
    [23]熊小松,高锐,李秋生等.天山造山带的深部结构.地球物理学进展,2011,26(6):1906-1914.Xiong X S,Gao R,Li Q S,et al.The deep structure ofTienshan orogenic belt.Progress in Geophys.(in Chinese),2011,26(6):1906-1914.
    [24]Li Y,Liu Q Y,Chen J H,et al.Shear wave velocitystructure of the crust and upper mantle underneath theTianshan orogenic belt.Science in China Series D:EarthSciences,2007,50(3):321-330.
    [25]Zhang Z J,Yang L Q,Teng J W,et al.An overview of theearth crust under China.Earth Science Reviews,2011,104(1-3):143-166.
    [26]Tian X B,Zhao D P,Zhang H S,et al.Mantle transitionzone topography and structure beneath the central Tien Shanorogenic belt.J.Geophys.Res.,2010,115:B10308,doi:10.1029/2008JB006229.
    [27]Li Z W,Steve R,Li Z H,et al.Tomographic image of thecrust and upper mantle beneath the western Tien Shan fromthe MANAS broadband deployment:Possible evidence forlithospheric delamination.Tectonophysics,2009,477(1-2):49-57.
    [28]钱俊锋,肖安成,杨树锋等.南天山造山带与西昆仑(帕米尔)造山带深层岩石圈对接.科技通报,2009,25(2):153-159,166.Qian J F,Xiao A C,Yang S F,et al.Deep lithosphericjointing relationship between South Tienshan Orogen andWest Kunlun(Pamir)Orogen.Bulletin of Science andTechnology(in Chinese),2009,25(2):153-159,166.
    [29]Zhao J M,Liu G D,Lu Z X,et al.Lithospheric structureand dynamic processes of the Tianshan orogenic belt and theJunggar basin.Tectonophysics,2003,376(3-4):199-239.
    [30]陈杰,卢演俦,丁国瑜.塔里木西缘晚新生代造山过程的记录——磨拉石建造及生长地层和生长不整合.第四纪研究,2001,21(6):528-539.Chen J,Lu Y C,Ding G Y.Records of Late Cenozoicmountain building in Western Tarim Basin:Molasses,Growth Strata,and Growth unconformity.QuaternarySciences(in Chinese),2001,21(6):528-539.
    [31]刘胜,汪新,伍秀芳等.塔西南山前晚新生代构造生长地层与变形时代.石油学报,2004,25(5):24-28.Liu S,Wang X,Wu X F,et al.Growth strata and thedeformation time of the Late Cenozoic along front belts ofPamir-western Kunlun-southwest Tianshan in China.ActaPetrolei Sinica(in Chinese),2004,25(5):24-28.
    [32]陈杰,Heermance R V,Burbank D W等.中国西南天山西域砾岩的磁性地层年代与地质意义.第四纪研究,2007,27(4):576-587.Chen J,Heermance R V,Burbank D W,et al.Magnetochronologyand its implications of the Xiyu conglomerate in theSouthwestern Chinese Tian Shan foreland.QuaternarySciences(in Chinese),2007,27(4):576-587.
    [33]Chen J,Heermance R,Burbank D W,et al.Quantificationof growth and lateral propagation of the Kashi anticline,southwest Chinese Tian Shan.J.Geophys.Res.,2007,112:B03S16,doi:1011029/2006JB004345.
    [34]尚新璐,陈新卫,吴超等.塔里木盆地西部喀什地区的新生代冲断构造.地质科学,2004,39(4):543-550,603.Shang X L,Chen X W,Wu C,et al.Cenozoic thruststructures in the Kashi area,western Tarim Basin.ChineseJournal of Geology(in Chinese),2004,39(4):543-550,603.
    [35]钱俊锋,肖安成,程晓敢等.喀什北缘南天山冲断带构造变形分析.中国矿业大学学报,2008,37(4):538-544.Qian J F,Xiao A C,Cheng X G,et al.Structuraldeformation of fold-thrust belt in the North margin of Kashi,Southern Tien Shan.Journal of China University of Miningand Technology(in Chinese),2008,37(4):538-544.
    [36]Zhao W J,Nelson K D,Che J,et al.Deep seismic reflectionevidence for continental underthrusting beneath southernTibet.Nature,1993,366(6455):557-559.
    [37]赵文津,纳尔逊K D.印度板块俯冲到藏南之下的深反射证据.地球学报,1996,17(2):131-137.Zhao W J,Nelson K D,Project INDEPTH Team.Deepseismic reflection evidence for continental underthrustingbeneath Southern Tibet.Acta Geoscientia Sinica(in Chinese),1996,17(2):131-137.
    [38]高锐,黄东定,卢德源等.横过西昆仑造山带与塔里木盆地结合带的深地震反射剖面.科学通报,2000,45(17):1874-1879.Gao R,Huang D D,Lu D Y,et a1.Deep seismic reflectionprofiles across juncture zone between Tarim basin and westKunlun Mountain.Chinese Science Bulletin(in Chinese),2000,45(17):1874-1849.
    [39]杨卓欣,张先康,嘉世旭等.伽师强震群区震源细结构的深地震反射探测研究.地球物理学报,2006,49(6):1701-1708.Yang Z X,Zhang X K,Jia S X,et al.Fine crustal structurein the Jiashi earthquake swarm region revealed by deep seismicreflection profiling.Chinese J.Geophys.(in Chinese),2006,49(6):1701-1708.
    [40]刘保金,沈军,张先康等.深地震反射剖面揭示的天山北缘乌鲁木齐坳陷地壳结构和构造.地球物理学报,2007,50(5):1464-1472.Liu B J,Shen J,Zhang X K,et al.The crust structures andtectonics of Urümqi depression revealed by deep seismicreflection profile in the northern margin of Tianshanmountains.Chinese J.Geophys.(in Chinese),2007,50(5):1464-1472.
    [41]董树文,李廷栋,高锐等.地球深部探测国际发展与我国现状综述.地质学报,2010,84(6):743-770.Dong S W,Li T D,Gao R,et al.International progress inprobing the Earth′s lithosphere and deep interior:A review.Acta Geologica Sinica(in Chinese),2010,84(6):743-770.
    [42]王海燕,高锐,卢占武等.深地震反射剖面揭露大陆岩石圈精细结构.地质学报,2010,84(6):818-839.Wang H Y,Gao R,Lu Z W,et al.Fine structure of thecontinental lithosphere circle revealed by deep seismicreflection profile.Acta Geologica Sinica(in Chinese),2010,84(6):818-839.
    [43]温声明,王贵重,程明华等.南天山山前冲断带的构造样式及成因探讨.新疆地质,2006,24(1):24-29.Wen S M,Wang G Z,Cheng M H,et al.Discussion aboutthe tectonic styles and the cause of formation of the structuresin the precordillera thrust belt of southern TianshanMountain.Xingjiang Geology(in Chinese),2006,24(1):24-29.
    [44]陈杰,丁国瑜,Burbank D W等.中国西南天山山前的晚新生代构造与地震活动.中国地震,2001,17(2):134-154.Chen J,Ding G Y,Burbank D W,et al.Late Cenozoictectonics and seismicity in the southwestern Tianshan,China.Earthquake Research in China(in Chinese),2001,17(2):134-154.
    [45]郭召杰,邓松涛,魏国齐等.天山南北缘前陆冲断构造对比研究及其油气藏形成的构造控制因素分析.地学前缘,2007,14(4):123-131.Guo Z J,Deng S T,Wei G Q,et al.Comparative study ofthe foreland thrust belts of South and North Tianshan andimplications for hydrocarbon accumulation.Earth ScienceFrontiers(in Chinese),2007,14(4):123-131.
    [46]侯贺晟,高锐,贺日政等.盆山结合部近地表速度结构与静校正方法研究——以西南天山与塔里木盆地结合带为例.石油物探,2010,49(1):7-11.Hou H S,Gao R,He R Z,et al.Near-surface velocitystructure and static correction of basin-mountain junctionzone:case study on the junction belt of western part of SouthTianshan and Tarim Basin.Geophysical Prospecting forPetroleum(in Chinese),2010,49(1):7-11.
    [47]刘金凯.南天山—塔里木盆地结合带深地震反射剖面精细处理与叠前成像[博士论文].北京:中国地质科学院,2011.Liu J K.Fine data processing and pre-stack imaging of thedeep seismic reflection profile of the contact zone between theSouthern Tianshan and Tarim basin[Ph.D.thesis](inChinese).Beijing:Chinese Academy of Geological Sciences,2011.
    [48]田作基.塔北前陆盆地与南天山造山带的耦合关系及油气分布特征.中国石油勘探,2006,11(4):16-20,60.Tian Z J.Coupling relation between Tabei foreland basin andNantianshan Orogenic belt and their oil-gas distributionfeature.China Petroleum Exploration(in Chinese),2006,11(4):16-20,60.
    [49]李涛,王宗秀.塔里木地块北部横向构造及断条模式.中国地质,2006,33(1):14-27.Li T,Wang Z X.Transverse structure and model of faultslivers in the northern part of the Tarim block.Geology inChina(in Chinese),2006,33(1):14-27.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心