塔里木盆地东南缘侏罗纪沉积相特征与古环境再造
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摘要
在沉积相和地震相特征分析的基础上,重建了塔里木盆地东南缘侏罗纪沉积古环境.结果表明:早侏罗世早期,塔里木盆地东南缘沉积以巨厚的冲积扇、辫状河三角洲为特征;早侏罗世晚期-中侏罗世早期,发育辫状河-辫状河三角洲、滨-浅湖沉积环境;中侏罗世中期,以湖相为主局部夹河流相;中侏罗世晚期,湖泊开始进入萎缩消亡阶段.阿尔金地区是盆地内主要的沉积沉降中心,塔里木盆地东南缘、柴达木盆地西部和吐拉地区相互连通,是古昆仑山前同一陆相盆地的不同组成部分,目前侏罗系展布格局是后期阿尔金山冲断隆升和阿尔金断裂走滑错断的结果.
The paleoenvironment of Jurassic in the southeastern Tarim basin was reconstructed based on the analysis of depositional and seismic facies.The results indicate that the depositional systems were consisted of alluvial-fan,braided-river delta at the early period of early Jurassic.From the later period of early Jurassic to the early period of middle Jurassic,the braided-river delta and littoral-shallow lake developed in this area.During the middle period of middle Jurassic,the depositional environment was mostly composed of lakes and rivers.At the late period of middle Jurassic,the lakes started to recess.The subsidence center of Jurassic was located in Altun.The southeastern Tarim,the western Qaidam basin and Tula basin were joined together at early-middle Jurassic,which are different compositional parts of the same continental basin at the foothill of Kunlun.The current distribution of Jurassic is resulted from thrust-uplifting of Altun mountain and slip-displacing of Altyn tagh fault.
The paleoenvironment of Jurassic in the southeastern Tarim basin was reconstructed based on the analysis of depositional and seismic facies.The results indicate that the depositional systems were consisted of alluvial-fan,braided-river delta at the early period of early Jurassic.From the later period of early Jurassic to the early period of middle Jurassic,the braided-river delta and littoral-shallow lake developed in this area.During the middle period of middle Jurassic,the depositional environment was mostly composed of lakes and rivers.At the late period of middle Jurassic,the lakes started to recess.The subsidence center of Jurassic was located in Altun.The southeastern Tarim,the western Qaidam basin and Tula basin were joined together at early-middle Jurassic,which are different compositional parts of the same continental basin at the foothill of Kunlun.The current distribution of Jurassic is resulted from thrust-uplifting of Altun mountain and slip-displacing of Altyn tagh fault.
引文
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[14]许志琴,李海兵,杨经绥.造山的高原-青藏高原巨型造山拼贴体和造山类型[J].地学前缘,2006,13(4):1-17.XU Zhi-qin,LI Hai-bing,YANG Jing-sui.An oro-genic plateau-the orogenic collage and orogenic typesof the Qinghai-Tibet plateau[J].Earth ScienceFrontiers,2006,13(4):1-17.
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[16]JOLIVET M,BRUNEL M,SEWARD D,et al.Mesozoic and Cenozoic tectonics of the northernedge of the Tibetan Plateau:fission-track con-straints[J].Tectonophysics,2001,343:111-134.
[17]刘永江,NEUBAUER F,葛肖虹,等.阿尔金断裂带年代学和阿尔金山隆升[J].地质科学,2007,42(1):134-146.LIU Yong-jiang,NEUBAUER F,GE Xiao-hong,et al.Geochronology of the Altun Fault Zone andrising of the Altun mountains[J].Chinese Journalof Geology,2007,42(1):134-146.
[18]张跃中,张敏,马富强,等.柴达木盆地西部阿尔金斜坡地区盆山演化与油气勘探[J].中国石油勘探,2006,6:26-32.ZHANG Yue-zhong,ZHANG Min,MA Fu-qiang,et al.Basin-range evolution and oil-gas explorationin Altun slope area of western qaidam basin[J].Chi-na Petroleum Exploration.2006,6:26-32.
[19]王建新,蒋维东,肖传桃.新疆吐拉盆地侏罗纪地层新知[J].石油天然气学报,2006,28(6):8-11.WANG Jian-xin,JIANG Wei-dong,XIAO Chuan-tao.The new cognition of Jurassic in Tula basin,Sinkiang[J].Journal of Oil and Gas Technology,2006,28(6):8-11.
[20]钟建华,尹成明,段宏亮,等.柴西阿尔金山南缘中生界古流特征[J].石油学报,2006,27(2):20-27.ZHONG Jian-hua,YIN Cheng-ming,DUAN Hong-liang,et al.Mesozoic paleocurrent properties in thesouthern edge of Altyn mountain in the western Qai-dam basin[J].Acta Petrolei Sinica,2006,27(2):20-27.
塔东南露头区重点层系地层沉积储层研究.塔里木油田勘探开发研究院,滇黔桂石油勘探开发研究院,2007.
塔东南坳陷-塔南隆起构造地质特征.浙江大学,塔里木油田分公司勘探开发研究院,2007.
[2]EDWARD R,ARANUD N,JOLIVET M,et al.Ju-rassic to Cenozoic exhumation history of the AltynTagh Range,northwest China,constrained by 40ar/39ar and apatite fission track thermochronology[J].Geological Society of America,2001,194:247-267.
[3]RITTS B D,BIFFI U.Magnitude of post-Middle Ju-rassic(Bajocian)displacement on the central AltynTagh Fault system,northwest China[J].GSA Bulle-tin,2000,112(1):61-74.
[4]ROBINSON M,NIVET D,GEHRLES E,et al.TheTula uplift,northwestern China:Evidence for region-al tectonism of the northern Tibetan Plateau duringlate Mesozoic-early Cenozoic time[J].GSA Bulletin.2003,115(1):35-47.
[5]YUE Yong-jun,RITTS B D,HANSON A D,et al.Sedimentary evidence against large strike-slip transla-tion on the northern Altyn Tagh fault,NW China[J].Earth and Planetary Science Letters,2004,228:311-323.
[6]MENG Qing-Ren,HU Jian-Min,YANG Fu-Zhong.Timing and magnitude of displacement on the AltynTagh fault:constraints from stratigraphic correlationof adjoining Tarim and Qaidam basins,NW China[J].Terra Nova,2001,13(2):86-91.
[7]蒲仁海.塔东南拗陷侏罗系沉积相的确定[J].西北大学学报:自然科学版,1994,24(6):547-550.PU Ren-hai.The defining of Jurassic depositinal faci-es of the southeast Tarim basin[J].Journal of North-west University:Natural Science Edition,1994,24(6):547-550.
[8]陈荣林,朱洪发,陈跃,等.塔里木盆地东南断陷侏罗系沉积特征及含油性研究[J].石油实验地质,1994,16(4):339-344.CHEN Rong-lin,ZHU Hong-fa,CHEN Yue,et al.A study of sedimentary characteristics and petrollfer-ousness in the Jurassic sequences of the faults region,the SE Tarim basin[J].Experimental Petroleum Ge-ology,1994,16(4):339-344.
[9]李文厚.塔里木东南断陷区侏罗系沉积体系及油气意义[J].石油与天然气地质,1998,19(2):110-115.LI Wen-hou.Jurassic sedimentary system of fault de-pression in southeast Tarim and its hydrocarbon sig-nificance[J].Oil&Gas Geology,1998,19(2):110-115.
[10]周琦,王建国,杜鸿烈.塔东南坳陷侏罗系层序地层分析与油气前景[J].沉积学报,2000,18(4):580-584.ZHOU Qi,WANG Jian-guo,DU Hong-lie.Studyof sequence stratigraphy in Mesozoic southeast Tar-im foreland basin[J].Acta Sedimentologica Sinica,2000,18(4):580-584.
[11]贾承造.塔里木盆地中新生代构造特征与油气[M].北京:石油工业出版社,2004.
[12]靳久强,赵文智,薛良清.中国西北地区侏罗纪原型盆地与演化特征[J].地质评论,1999,45(1):92-104.JIN Jiu-qiang,ZHAO Wen-zhi,XUE Liang-qing,et al.Proto-types and evolution of Jurassic basins inNW China[J].Geological Review,1999,45(1):92-104.
[13]陈发景,汪新文.中国西北地区早-中侏罗世盆地原型分析[J].地学前缘,2000,7(4):459-468.CHEN Fa-jing,WANG Xin-wen.Prototype analy-sis of earlymiddle Jurassic basins in northwesternChina[J].Earth Science Frontiers,2000,7(4):459-468.
[14]许志琴,李海兵,杨经绥.造山的高原-青藏高原巨型造山拼贴体和造山类型[J].地学前缘,2006,13(4):1-17.XU Zhi-qin,LI Hai-bing,YANG Jing-sui.An oro-genic plateau-the orogenic collage and orogenic typesof the Qinghai-Tibet plateau[J].Earth ScienceFrontiers,2006,13(4):1-17.
[15]COWGILL E,YIN A,WANG Xiao-feng,et al.Isthe north Altyn Fault part of a strike-slip duplex a-long the Altyn Tagh Fault system[J].Geology,2002,28(3):255-258.
[16]JOLIVET M,BRUNEL M,SEWARD D,et al.Mesozoic and Cenozoic tectonics of the northernedge of the Tibetan Plateau:fission-track con-straints[J].Tectonophysics,2001,343:111-134.
[17]刘永江,NEUBAUER F,葛肖虹,等.阿尔金断裂带年代学和阿尔金山隆升[J].地质科学,2007,42(1):134-146.LIU Yong-jiang,NEUBAUER F,GE Xiao-hong,et al.Geochronology of the Altun Fault Zone andrising of the Altun mountains[J].Chinese Journalof Geology,2007,42(1):134-146.
[18]张跃中,张敏,马富强,等.柴达木盆地西部阿尔金斜坡地区盆山演化与油气勘探[J].中国石油勘探,2006,6:26-32.ZHANG Yue-zhong,ZHANG Min,MA Fu-qiang,et al.Basin-range evolution and oil-gas explorationin Altun slope area of western qaidam basin[J].Chi-na Petroleum Exploration.2006,6:26-32.
[19]王建新,蒋维东,肖传桃.新疆吐拉盆地侏罗纪地层新知[J].石油天然气学报,2006,28(6):8-11.WANG Jian-xin,JIANG Wei-dong,XIAO Chuan-tao.The new cognition of Jurassic in Tula basin,Sinkiang[J].Journal of Oil and Gas Technology,2006,28(6):8-11.
[20]钟建华,尹成明,段宏亮,等.柴西阿尔金山南缘中生界古流特征[J].石油学报,2006,27(2):20-27.ZHONG Jian-hua,YIN Cheng-ming,DUAN Hong-liang,et al.Mesozoic paleocurrent properties in thesouthern edge of Altyn mountain in the western Qai-dam basin[J].Acta Petrolei Sinica,2006,27(2):20-27.
塔东南露头区重点层系地层沉积储层研究.塔里木油田勘探开发研究院,滇黔桂石油勘探开发研究院,2007.
塔东南坳陷-塔南隆起构造地质特征.浙江大学,塔里木油田分公司勘探开发研究院,2007.
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