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滇西南怒江断裂带第四纪以来的构造活动性
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摘要
活动断裂是现代构造活动的重要表现,它与地震的发生有着密切的联系,反映了现今或最新地质时期地壳变形和运动特点。对活动断裂的活动时代、运动特征、滑动速率、断裂的分段及其长度与同震位移等问题基本定量参数的的研究,是认识现代岩石圈板块运动和板内构造变形的重要窗口。
     滇西怒江断裂带作为青藏高原东部边缘的一条大型陆内走滑断裂带,其形成、演化与青藏高原的隆升有着密不可分的联系。因此对于怒江断裂带的构造活动性的研究,有助于了解青藏高原的形成和演化过程,对揭示青藏高原东向挤出或逃逸过程的运动形式和机制,反演印度和欧亚大陆相互作用过程等问题都具有重要的意义。本文以滇西怒江断裂带南段发育的断陷盆地为研究重点,以活动断裂的发现为线索,着重以控盆断裂为研究对象,并结合地貌现象,来研究怒江断裂第四纪以来的构造活动性问题。进而来揭示它们在青藏高原东向挤出和印支块体向东南逃逸过程中所扮演的角色。研究取得的主要认识如下:
     1、滇西境内怒江断裂带在道街北分为东西两支:怒江东支断裂和怒江西支断裂。西支断裂在11~14Ma时由于受到印支块体的东南逃逸所引起的块体旋转作用,在断裂尾端发生弯曲并造成构造转换,走向由近南北向转为南西向,并延伸至缅甸,形成现今人们通常认为的龙陵-瑞丽断裂带,同时使得高黎贡山脉的山体两侧发育伸展构造,造成山体高度的下降。该区的伸展构造作用具有由南向北逐渐发展的趋势。东支基本保持原有延伸方向,向南延伸与畹町断裂交汇。
     2、研究区处于滇西南块体顺时针旋转的内部,根据对该区域地球动力学的研究,认为滇西南大部分地区的现代构造应力场以SN向挤压、EW向拉张为主要特征,应力结构以走滑型为主。应力场方向与前人研究结果基本一致。
     3、通过对怒江东支断裂的活动性的研究,发现由东支断裂控制影响的道街盆地和镇安盆地在晚更新世以来具有活动的迹象。从怒江流域道街段河流阶地特征可以推断出该区自晚更新世以来的平均抬升速率为2.43mm/a。而通过对东支断裂其它段的研究,认为它的主要活动时代在早-中更新世时期。块体的顺时针旋转对怒江断裂带局部部位具有影响。
     4、怒江西支断裂带北东走向段由于受到块体的旋转作用,断裂性质由右旋走滑转为左旋走滑,以协调块体的顺时针旋转。
     5、通过研究,认为怒江西支断裂北东走向段的最新活动时代为晚更新世以来。该段活动时代比怒江断裂带近南北走向段的活动时代新。
Active faults is one kind of displays of recent tectonic activity, and is closely related to the earthquake occurrence. the activities reflect features of crustal deformation and movement in the recent or the latest geological time. The fundamental quantitative parameters, provided by active tectonic researches, which include active history, movement feature, slip rate, fault segmentation and segment length and co-seismic displacement. will offer an important window for us to understand the geodynamics of lithosphere, the recent plate movement and intra-plate deformations. Nujiang fault of the western Yunnan is a large inner continental strike-slip fault in eastern Tibetan margin. It is closely related to uplift of the Tibetan plateau. Therefore, the studies of tectonics activity of Nujiang fault contribute to understand the formation and evolution of the Tibetan plateau, to reveal the movement form and mechanism of eastern extrusion or escape of Tibetan plateau, to reflect interaction process of Indian and Eurasian plate.
     Based on background of development of rift basins, clue of finding out active fault, study subject of fault controlled basin, and Combined with the phenomenon of Geomorphology, the thesis investigates tectonic activity of Nujiang Fault during Quaternary. The role in the eastern extrusion of Tibetan plateau and Eastsouthern escape of Indian plate. The main contents of work are summarized as blew:
     1.Nujiang Fault within the borders is obviously divided into east branch and west branch of Nujiang fault of in the Nouth of Daojie. The ends of Nujiang fault, believed to Longling-Ruili fault, bended, caused trending transformation from South-North into Southwest, which resulted in development of extensional tectonics in the both sides of Gaoligongshan, extended to Myanmar, because of circumgyrate resulted from ES-trending escape of Indian plate during 11~14Ma. Extensional tectonics had a development trend from south to north.
     2.Study region is located in the Southwest Yunnan Block right-laterally circumgyrating. Through study of regional geodynamics, it is obtained that modern tectonic stress field is characteristic of SN-direction compression and EW-direction extension, stress structure is main strike-slip. Orientation of stress field is basically in accordance with the former study results.
     3.Through research about activity of East branch of Nujiang fault, it was found that Daojie Basin and Zhen’an Basin, controlled East branch of Nujiang fault, had new activity since late Pleistocene. River terraces in the Daojie section of Nujiang drainage area show that mean uplift rate is 2.43mm/a since late Pleistocene. Study of East branch of Nujiang fault through other method indicates that the newest activity occurred during Early and Middle Pleistocene. The phenomenon reflects that right-lateral block circumgyrate had influence on the section of Nujiang fault, and resulted in activity of the fault.
     4.Northeast trending Longling-Ruili fault, turning Point of West branch of Nujiang fault, transformed from right-lateral into left-lateral strike-slip, which assort with plate right-lateral circumgyrate of plate.
     5.Researth indicates that newest activity of Longling-Ruili fault occurred at after late Pleistocene. The age is younger than South-North section of Nujiang fault。
引文
陈国达主编, 1:400万中国大地构造图(按地洼学说编制).北京:地图出版社.1977.
    陈立德,赵维城, 1976年龙陵地震[M].北京:地震出版社,1979.
    邓晋福,莫宣学.新生代以来中国大陆岩石圈尺度的大地构造分区,地球科学:中国地质大学学报,1997,22(3):227-232.
    丁 林,滇西高黎贡山南段构造变形特征及演化历史讨论[硕士学位论文] 北京:中国科学院地质研究所.1991, 97.
    樊春,王二七,滇西高黎贡山南段左行剪切构造形迹的发现及其大地构造意义.自然科学进展,2004,14(10):1189~1193.
    范承钧. 滇西区域地质特征. 云南地质,1982,(4) :323-336.
    国家地震局地质研究所.云南省地震局.1990 滇西北地区活动断裂北京:地震出版杜.
    虢顺民,向宏发,周瑞奇等,滇西南龙陵一澜沧断裂带—大陆地壳上一条新生的破裂带[J],科学通报,1999,44(19):2l19-2121.
    虢顺民,向宏发,周瑞奇,等,滇西南龙陵一澜沧第四纪新生断裂带特征和形成机制研究[A].见:皇甫岗,姜朝松著.腾冲火山研究[M],昆明:云南科技出版社,2000.
    虢顺民,周瑞琦。龙陵-澜沧新生断裂带地震破裂分段与地震预测研究,地震地质,2002,24(2):133-144.
    何科昭、赵崇贺、何浩生等,滇西陆内裂谷与造山作用— — 滇西地区印支期后的构造演化,中国地质大学出版社,1996.
    何浩生,何科昭,滇西地区夷平面变形及其反映的第四纪构造运动,现代地质,1993,7(1):31-39.
    阚荣举、张四昌等,我国西南地区现代构造应力场与现代构造活动的探讨,地球物理学报,1977,2期。
    黄汲清,任纪舜,姜春发,张之孟,许志琴,中国大地构造基本轮廓.地质学报,1977,51(2):117-135.
    胡斌,戴塔根,胡锐忠等,滇西地区壳体大地构造单元的划分及其演化与运动特征。大地构造与成矿学,2005,29(4):537-544.
    黄玮琼,李文香.中国大陆地震资料完整性研究之二:分区地震资料基本完整的起始年,地震学报,1994,16(4):423-432.
    季建清,钟大赉。中缅边境那邦变质基性岩的两期变质作用及其构造意义,岩石学报,1998,14(2):163-175.
    季建清,钟大赉,张连生,青藏高原东南部新生代挤出块体西边界.科学通报,2000a,45(2):128-134.
    季建清,钟大赉,张连生,滇西南新生代走滑断裂运动学、年代学、及对青藏高原东南部块体运动的意义.地质科学,2000b,35(3):336-349.
    季建清,钟大赉。滇西南那邦变质基性岩地球化学与俯冲板片裂离,岩石学报,2000,16:433-442.
    姜朝松.腾冲地区新生代火山活动分期,地震研究,1998,21(4).
    姜朝松,王绍晋,叶建庆等,腾冲火山区小震震源机制特征,地震研究,2005,28(2):141-143.
    李康, 钟大赉. 滇西高黎贡断裂带糜棱岩的显微变形特征及其构造意义. 岩石学报, 1991.7(3):65-71.
    李继亮.滇西三江带的大地构造演化.地质科学,1988,(4):337-346.
    李玶、汪良谋,云南川西地区地震地质基本特征的探讨,地质科学,1977,4期。
    李春昱,亚洲大地构造图说明书,地图出版社,1982.
    李京昌,滇西怒江断裂带新构造特征.地震地质,1998,20(4):3l2-320.
    李峰,段嘉瑞。滇西地区板块-地体构造,昆明理工大学学报,1999,24(1):29-35.
    罗君烈.滇西特提斯造山带的演化及基本特征.云南地质.1990,9(4):247-290.
    吕江宁,沈正康,王敏,川滇地区现代地壳运动速度场和活动块体模型研究.地震地质,2003,25(4):543-554.
    马篆阶,滇西怒江道街断陷盆地的新构造运动特征,地质研究,1990,1:129-133.
    马宗晋、傅征祥、张郢珍等,中国九大地震,地震出版杜,1982,38-39.
    孙家振,杨士恭.转换-伸展盆地-莺歌海的演化,地球科学:中国地质大学学报,1995,20(3):243-249.
    王绍晋,龙晓帆.腾冲火山区某些地震学参数特征,地震研究,2000,23(2):95-99.
    王晋南,王洋龙,安晓文等,1976 年龙陵地震去断裂活动性研究,地震研究,2006,29(4):366-372.
    王国芝,王成善,刘登忠等.滇西高原第四纪以来的隆升和剥蚀[J].海洋地质与第四纪地质,1999,19(4):67-74.
    王刚,万景林,王二七。高黎贡山脉南部的晚新生代构造-重力垮塌及其成因,地质学报,2006,80(9):1262-1273.
    魏海霞,薛传东,高照忠。潞西盆地浅层地下水脆弱性预测分析,云南地质,2006,25(4):498-504.
    吴根耀,滇西北地区第三纪的逆冲一推覆构造,大地构造与成矿学,1994,18(4):33l-338.
    向宏发,徐锡伟,虢顺民,等.1999.滇西地区两组交叉型活动断裂及其地震地质意义[A].见:活动断裂研究(7) [M].北京:地震出版社.
    向宏发,董兴权。川滇南部地区活动地块划分与现今运动特征初析,地震地质,2000,22(3):253-264.
    谢富仁,刘光勋.滇西北及邻区现代构造应力场,地震地质,1994,16(4):329-338.
    谢富仁,苏刚.滇西南地区现代构造应力场分析,地震学报,2001,23(1):17-23.
    颜丹平,云南保山- 腾冲地区喜马拉雅构造运动特征[硕士学位论文]. 1991, 北京: 中国地质大学. 127.
    颜丹平,赵其强.滇西新构造运动时期陆内伸展作用,现代地质,1993,7(3):303~311.
    云南省地质矿产局.1985.1:20 万碧江幅、泸水幅区域地质调查报告.
    钟大赉,滇川西部古特提斯造山带,北京:科学出版社,1998.
    钟大赉, 王毅,丁林, 滇西高黎贡陆内第三纪走滑断裂及其伴生拉张构造. 中国科
    学院地质研究所岩石圈构造进化开放实验室1990 年报,1991, 北京: 科技出版社,18-24.
    钟大赉,丁林,青藏高原的隆起过程及其机制的探讨.中国科学(D 辑),1996,26(4):289-299.
    周玖、黄修武,在重力作用下的我国西南地区地壳物质流,地震地质,19804期。
    周瑞琦、何希虎、张双林、龙建章,红河断裂带应力场的分析,地震研究,1982,4期。
    周瑞琦,虢顺民。龙陵-澜沧断裂带双震型强震活动破裂模型讨论,地震地质,1998,20(3):261-268.
    赵宝光,刘建,罗昙等。滇西泸水-瑞丽地区金成矿条件及找矿前景,四川地质学报,2005,25(2):92-97.
    张四昌,刁桂苓,王绍晋等,1976 年龙陵震群序列的破裂特征,中国地震,1994,10(2):152-159.
    张四昌、徐杰,1976年龙陵地震地震地质特征的探讨,地震研究,1978,Vol 1,No 3,44-54.
    张培震,沈正康,王敏等,青藏高原及周边现今构造变形的运动学.地震地质, 2004,26(3):367-377.
    Armijo R, Tapponnier P. Han T. Late Cenozoic right-lateral strike-slip faulting in southern Tibet (J).Jour Geophys Res, 1989.94:2787-2838.
    Avouac J P, Tapponnier P. Kinematic model of active deformation in central Asia(J). Geophy Res Lett, 1993.20:895-898.
    Bhattacharjee C C.The ophiolites of northeast lndia- a subduction zone ophiolite complex of the India-Burman orogenic belt.Tectonophysics.1991.191:213-222.
    Chen Haihong Dobson J ,Heller F,et a1. Paleomagnetic evidence for clockwise rotation of the Simao region since the Cretaceous: a consequence of India—Asia collision.EPSL,1995.134:203-217.
    Ding L , et al. Deformation age for Miocene right2lateral movement along the Gaoligong strike slip fault , western Yunnan. Memoir of lithospheric tectonic evolution research,Beijing : Seismology Press , 1992. 68-73.
    Deway J F,Burke R M and Ceng C. The tectonic evolution of the Tibetan Plateau.Phil. Trans. R.Soc.Loud, 1988, 327:379-416.
    Funahara S, Nishiwaki N, Miki M, et al. Paleomagnetic study of Cretaceous rocks from the Yangtze Block,Central Yunnan,China:implications for the India-Asia collision(J).Earth Planet Sci Lett, 1992.133:77-79.
    Huang K, Opdyke N D. Paleomagnetic results from Cretaceous and Jurassic rocks of South and Southweast yunnan: evidence for large clockwise rotation in the Indo-China and Shan-Thai-Malay terrenes(J).Earth Planet Sci Lett, 1993.117:507-524.
    Lacassin R,Replumaz A ,Leloup P.Hairpin river loops and slip sense inversion on southeast Asian strike—slip faults.Geology,1998.26(8):703-706.
    Leloup P H , et al. The AilaoShan-Red River shear zone ( Yunnan ,China) , Tertiary transform boundary of Indochina. Tectonophysics , 1995 , 251 : 3.
    Lee T-Y ,Lawyer L.Cenozoic plate reconstruction of Southeast Asia.Tectonophysics,1995.251:85-138.
    Molnar.P and Tapponnier P, Cenozoic tectonics of Asia: effects of a continental collision[J].Science, 1975.189:419-426.
    Monlar P, S□ wave residuals from earthquake in the Tibetan region and lateral variations in the upper mantle Earth and Planetary Science Letters,1990.101:68 -77.
    Molnar.P and Tapponnier P, Cenozoic tectonics of Asia:effects of a continental collision[J].Science, 1975.189:419-426.
    Packman G H. Plate tectonics and development of sedimentary basins of the dextral regime in western Southeast Asia Jour of SAES,1993.18:497-510.
    Rastogi B,K., Earthquake mechanisms and plate tectonics in Himalayan region, Tectonophysics,V. 1974,21,No.1.
    Socquet, Manuel Pubelliet,Cenozoic deformation in western yunnan (China-Myanmar border),Journal of Asian Earth Science ,2005,24:495-515.
    TAPPONNIER P,XU Zhiqin,FRANCOISE R,et al.Oblique stepwise rise and growth of the Tibet plateau[J].Science,2001,294(23):1671-1677.
    Tapponnier P , et al. On the mechanics of the collision between India and Asia , In : Coward M P. et al. eds. Collision Tectonics ,Geological Society of London Special Publishing , 1986. 115-157.
    Tapponnier P,Lacassin R and Leoup P H. The Ailao Shan— Red River metamorphic belt:Tertiary ]eft lateral shear between Indochina and South China.Nature,1990.343:43l-437.
    Wang E ,Burchfiel B C.Interpretation of Cenozoic tectonics in the right- lateral accommodation zone between the Ailao Shan shear z0ne and the eastern Himalayan syntaxis. International Geology Review ,1997.39(3):191-2l9.
    Xu X W, Deng Q D. Nonlinear characteristics of paleoseimicity in China(J).Jour Geophy Res, 1996.101(B3):6209-6231.
    Yerina R.K.et al., Seismotectomics of the Himalaya and the continental plate convergengce, Tectonophysics, V. 1977, 42 P,319-335.
    Zhong Dalai,Tapponnier P,Wu Haiwei,et a1.Large-sca]e strike slip fault:the major structure of intracontiontal deformation after collision.Chinese Science Bulletin,1989.35:77- 97.

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