东三江盆地南部白垩纪以来的沉积特征及其演化
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摘要
东三江地区白垩纪以来的沉积特征及其演化,对大庆外围地区的油气勘探和揭示东北亚地区演化机制具有重要意义。根据岩心、录井、测井以及地震等资料的详细研究表明:白垩纪以来均发育扇三角洲-湖泊沉积体系。早白垩世为弧后伸展型盆地,残留地层中有滨浅湖和火山岩沉积;晚白垩世为北东向展布的板内挠曲挤压型盆地,发育以盆地两侧绥滨和完达山为物质供给的短轴物源,海浪组—七星河组发育逆同生断层,半深湖的面积先扩大后缩小,雁窝组以盆地充填消亡为主。新生代为右旋走滑拉分盆地,以继承性的短轴物源为主。在宝泉岭组时期有桦南隆起方向的长轴物源,宝泉岭组—富锦组下、中段,半深湖面积扩大,沉积中心向东南迁移;富锦组上段,水体变浅,湖盆面积扩大,沉积中心向西北迁移。
The sedimentation features and its evolution since Cretaceous in the eastern Sanjiang basin play an important role for the oil and gas exploration in the outer Daqing area and also are essential for the research of evolution in NE Asia.Detailed studies on the rock cores,geo-loggings,well loggings,and seismic materials show that,fan delta and lake sediment system developed since Cretaceous.In the Early Cretaceous,it was a spreading back-arc basin,some shore-shallow lake and volcanic sediments developed in the residual stratums;in the Late Cretaceous,it was a NE displayed intra-plate flexure-squeezed basin with short axis sediment sources from the Suibin and Wandashan on the both sides of basin,conversed contemporary fault developed in the Hailang-Qixinghe Formation,area of the semi-deep lake shrinked after extension,followed by basin filling and disappearing in the Yanwo Formation.In the Cenozoic,this basin was a dextral strike-slip pull-apart basin with the main sediments from an inherited short-axis source.During Baoquanling period,a long-axis sediment source appeared in the direction of Huanan uplift.From Baoquanling to the Lower-Mid period of Fujin,the semi-deep lake area extended with the sedimentation center moving towards southeast.During the Late Fujin period,the water body became shallow and the basin extended with the sedimentation center moving northwestward.
The sedimentation features and its evolution since Cretaceous in the eastern Sanjiang basin play an important role for the oil and gas exploration in the outer Daqing area and also are essential for the research of evolution in NE Asia.Detailed studies on the rock cores,geo-loggings,well loggings,and seismic materials show that,fan delta and lake sediment system developed since Cretaceous.In the Early Cretaceous,it was a spreading back-arc basin,some shore-shallow lake and volcanic sediments developed in the residual stratums;in the Late Cretaceous,it was a NE displayed intra-plate flexure-squeezed basin with short axis sediment sources from the Suibin and Wandashan on the both sides of basin,conversed contemporary fault developed in the Hailang-Qixinghe Formation,area of the semi-deep lake shrinked after extension,followed by basin filling and disappearing in the Yanwo Formation.In the Cenozoic,this basin was a dextral strike-slip pull-apart basin with the main sediments from an inherited short-axis source.During Baoquanling period,a long-axis sediment source appeared in the direction of Huanan uplift.From Baoquanling to the Lower-Mid period of Fujin,the semi-deep lake area extended with the sedimentation center moving towards southeast.During the Late Fujin period,the water body became shallow and the basin extended with the sedimentation center moving northwestward.
引文
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[2]刘和甫.盆地-山岭耦合体系与地球动力学机制[J].地球科学:中国地质大学学报,2001,26(6):185-195.Liu He-fu.Geodynamic Scenario of Coupled Basin andMountain System[J].Earth Science:Journal of ChinaUniversity of Geosciences,2001,26(6):185-195.
[3]王杰.鸡西盆地早白垩世沉积特征及物源分析[M].长春:吉林大学,2007:52-69.Wang Jie.The Early Cretaceous SedimentaryCharacteristics and Analysis of the Provenances in JixiBasin[M].Changchun:Jilin University,2007:52-69.
[4]纪伟强.吉黑东部中生代晚期火山岩的年代学和地球化学[M].长春:吉林大学,2007:49-54.Ji Wei-qiang.Chronology and Geochemistry of LateMesozoic Volcanic Rocks in Eastern Jilin andHeilongjiang Provinces[M].Changchun:JilinUniversity,2007:49-54.
[5]董林森.黑龙江省东部三江盆地的沉积特征及演化[D].长春:吉林大学,2008:73-83.Dong Lin-sen.Characteristics of Sedimentary andEvolution of Sanjiang Basin in Eastern HeilongjiangProvince[D].Changchun:Jilin University,2008:73-83.
[6]刘招君,何玉平,和钟铧,等.黑龙江省东部早白垩世原型盆地恢复[C]//第九届全国古地理学及沉积学学术会议.西安:西北大学,2006:26-27.Liu Zhao-jun,He Yu-ping,He Zhong-hua,et al.Restored Early Cretaceous Prototype Basins of EastHeilongjiang Province[C]//The 9th National AncientGeography and Sedimentology Academic Conference.Xi’an:Northwest University,2006:26-27.
[7]和钟铧,刘招君,陈秀艳,等.黑龙江省东部残留盆地群早白垩世沉积相特征及演化[J].古地理学报,2008,10(2):153-158.He Zhong-hua,Liu Zhao-jun,Chen Xiu-yan,et al.Sedimentary Facies Characteristics and Their Evolutionof the Early Cretaceous Relict Basins in EasternHeilongjiang Province[J].Journal of Palaeogeography,2008,10(2):153-158.
[8]环文林,时振梁,鄢家全.中国东部及邻区中新生代构造演化与太平洋板块运动[J].地质科学,1982,17(2):179-190.Huan Wen-lin,Shi Zhen-liang,Yan Jia-quan.Meso-Cenozoic Tectonic Evolution of Eastern China andAdjacent Area and Movement of the Pacific Plate[J].Chinese Journal of Geology,1982,17(2):179-190.
[9]杨建国,吴河勇,刘俊来.大庆探区外围盆地中、新生代地层对比及四大勘探层系[J].地质通报,2006,25(9/10):1088-1093.Yang Jian-guo,Wu He-yong,Liu Jun-lai.Stratigraphic Correlation of the Mesozoic and Cenozoicin the Outer Basins of the Daqing Exploration Area[J].Geological Bulletin of China,2006,25(9/10):1088-1093.
[10]邰成彬.大庆探区外围中、新生代地层序列与盆地演化[D].长春:吉林大学,2005:72-79.Tai Cheng-bin.The Mesozoic and Cenozoic StrataSequence and Basin Evolution Surround DaqingExploring Region[D].Changchun:Jilin University,2005:72-79.
[11]Fang Shi,Liu Zhaojun,Wu Heyong,et al.ThrustEvent of the Provenances Revealed by Zircon FissionTrack Ages in Tangyuan Fault-Basin,NE China[J].Radiation Measurements,2008,43:S324-S328.
[12]韩国卿,刘永江,李俊杰,等.黑龙江省东北部桦南隆起的隆升时期[J].吉林大学学报:地球科学版,2008,38(3):389-397.Han Guo-qing,Liu Yong-jiang,Li Jun-jie,et al.Uplifting Time of Huanan Uplift in the NortheasternHeilongjiang,China[J].Journal of Jilin University:Earth Science Edition,2008,38(3):389-397.
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