辽中凹陷东营组高精度层序地层及沉积体系
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摘要
应用高精度层序地层学的理论和方法,以岩芯、测井资料、孢粉和地震资料为基础建立了辽中凹陷古近系东营组高精度层序地层格架,划分出3个三级层序和6个四级层序。四级层序内识别出冲积扇、扇三角洲、曲流河三角洲、辫状河三角洲、下切水道、滨浅湖、深湖浊积、重力流等多种沉积体系。在高精度的四级层序编图基础上识别出有利于岩性圈闭勘探的浊积体系和水下扇体系的层序发育部位,SQd2上部的四级层序和SQd3上部的四级层序底部均是隐蔽圈闭发育的有利部位。通过层序格架内各沉积体系的发育特征和位置,总结出沉积体系的发育类型和在凹陷中的位置明显受到古构造和古气候双重因素地控制。
According to the high-resolusion sequence stratigraphy theory and method,the Dongying strata in the Liaozhong Sag has been divided into three 3rd order sequences and six 4th order sequences based on the integrated study on cores,well logs,cryptogam and seismic data.Several kinds of depositional systems have been identified,such as alluvial fan/fan delta deposits,fluvial and delta deposits,incised valley filling,sea-gull deposit,flooding basin deposit,lacustrine deposit,gravity or turbidity flow deposit,and so on.The best favorable sequence place for lithology exploration such as turbidity system and subsea apron are identified based on the complication of the 4th order sequence.The position is the bottom of the 4th order sequence and the top of the 3rd order sequence of SQd2 and SQd3.Through the analysis of the characteristics and positions of the depositional system,it can be concluded that the types and position of the depositional system are controlled by palaeostructure and palaeoclimate.
According to the high-resolusion sequence stratigraphy theory and method,the Dongying strata in the Liaozhong Sag has been divided into three 3rd order sequences and six 4th order sequences based on the integrated study on cores,well logs,cryptogam and seismic data.Several kinds of depositional systems have been identified,such as alluvial fan/fan delta deposits,fluvial and delta deposits,incised valley filling,sea-gull deposit,flooding basin deposit,lacustrine deposit,gravity or turbidity flow deposit,and so on.The best favorable sequence place for lithology exploration such as turbidity system and subsea apron are identified based on the complication of the 4th order sequence.The position is the bottom of the 4th order sequence and the top of the 3rd order sequence of SQd2 and SQd3.Through the analysis of the characteristics and positions of the depositional system,it can be concluded that the types and position of the depositional system are controlled by palaeostructure and palaeoclimate.
引文
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[24]朱光,王道轩,刘国生,等.郯庐断裂带的演化及其对西太平洋板块运动的响应[J].地质科学,2004,39(1):36-49.
[25]徐杰,宋长青,楚全芝.张家口-蓬莱断裂带地震构造特征的初步探讨[J].地震地质,1998,20(2):146-154.
[26]赵俊猛,卢造勋.辽河裂谷的深部构造与裂谷活动的侧向迁移[J].地震地质,1998,20(3):225-233.
[27]Bowley D B.Minimum age of initiation of collision be-tween Indian and Asia north of Everest based on the sub-sidence history of the Zhepure Mountain section[J].TheJournal of Geology,1998:229-235.
[28]林畅松,潘元林,肖建新,等.构造坡折带断陷盆地层序分析和油气预测的重要概念[J].地球科学中国地质大学学报,2000,25(3),260-266.
[29]林畅松,郑和荣,任建业,等.渤海湾盆地东营、沾化凹陷早第三纪同沉积断裂作用对沉积充填的控制[J].中国科学:D辑,2003,33(11):1025-1036.
[30]董洁,陈世悦,李聪.辽河西部凹陷欢喜岭地区沙河街组三段层序地层与沉积相研究[J].地球科学与环境学报,2010,32(3):245-251.
[2]Barrell J.Rhythms and the measurements of geolo-gical time[J].Geological Society of America Bulletin,1917:745-904.
[3]Sloss L L,Krumbein W C,Dapples E C.Integrated faciesanalysis,Sedimentary Facies in Geologic History,Geolo-gical Society of America Memoir[M].1949:91-124.
[4]Sloss L L.Stratigraphic models in exploration[J].Journalof Sedimentary Research,1962,32(3):415-422.
[5]Sloss L L.Sequence in the cratonic interior of North Ame-rica[J].Geological Society of America Bulletin,1963,74(2):93-114.
[6]Wheeler H E.Time stratigraphy[J].American Associationof Petroleum Geologists Bulletin,1958:1047-1063.
[7]Wheeler H E.Unconformity bounded units in stratigra-phy[J].American Association of Petroleum GeologistsBulletin,1959:1975-1977.
[8]Wheeler H E.Baselevel,lithosphere surface,and time-stratigraphy[J].Geological Society of America Bulletin,1964,75(7):599-610.
[9]Miller R L.Papers in Marine Geology[M]//Curray J R.Transgressions and regressions.New York:Macmillan,1996:175-203.
[10]Frazier D E.Depositional episodes:their relationship tothe quaternary stratigraphic framework in the northwes-tern portion of the Gulf Basin[M].Geological Circular,1974.
[11]PosamentierHW,VailPR.Eustaticcontrolsonclasticde-position.II.Sequenceandsystemstractmodels[C].SEPMSpecial Publication,1988:125-154.
[12]Shanley K W,McCabe P J.Perspectives on the sequencestratigraphyofcontinentalstrata[J].AmericanAssociationof Petroleum Geologists Bulletin 1994:544-568.
[13]Blum M D.Importance of falling stage fluvial deposi-tion:Quaternary examples from the Texas Gulf CoastalPlain and Western Europe[C]//Seventh International Con-ference on Fluvial Sedimentology,2001.
[14]徐杰,宋长青,高战武.营口-潍坊断裂带新生代活动的特征[J].地震地质,1999,21(4):289-300.
[15]曹忠祥.营口—潍坊断裂带新生代走滑拉分—裂陷盆地伸展量、沉降量估算[J].地质科学,2008,43(1):65-81.
[16]漆家福.渤海湾新生代盆地的两种构造系统及其成因解释[J].中国地质,2004,31(1):15-22.
[17]吴因业,刘云田,江波,等.阿尔金地区高精度层序解释与砂体预测[J].新疆石油地质,2005,26(4):357-359.
[18]袁波,陈世悦,袁文芳,等.辽西凹陷欢喜岭地区沙河街组层序格架的建立[J].西南石油大学学报:自然科学版,2008,30(2):27-30.
[19]洪作民,杨忠杰.辽宁郯庐断裂发生发展演化史[J].中国区域地质,1984(10):49-58.
[20]马宝军,漆家福,于福生.辽河盆地西部凹陷北段反转构造的物理模拟[J].石油天然气学报,2005,27(1):142-145.
[21]童亨茂,宓荣三,于天才,等.渤海湾盆地辽河西部凹陷的走滑构造作用[J].地质学报,2008,82(8):1017-1026.
[22]Waldron J W F.Extensional fault arrays in strike-slipand transtension[J].Journal of Structural Geology,2005,27(4):23-34.
[23]徐嘉炜.论走滑断层作用的几个主要问题[J].地学前缘,1995,2(1/2):125-136.
[24]朱光,王道轩,刘国生,等.郯庐断裂带的演化及其对西太平洋板块运动的响应[J].地质科学,2004,39(1):36-49.
[25]徐杰,宋长青,楚全芝.张家口-蓬莱断裂带地震构造特征的初步探讨[J].地震地质,1998,20(2):146-154.
[26]赵俊猛,卢造勋.辽河裂谷的深部构造与裂谷活动的侧向迁移[J].地震地质,1998,20(3):225-233.
[27]Bowley D B.Minimum age of initiation of collision be-tween Indian and Asia north of Everest based on the sub-sidence history of the Zhepure Mountain section[J].TheJournal of Geology,1998:229-235.
[28]林畅松,潘元林,肖建新,等.构造坡折带断陷盆地层序分析和油气预测的重要概念[J].地球科学中国地质大学学报,2000,25(3),260-266.
[29]林畅松,郑和荣,任建业,等.渤海湾盆地东营、沾化凹陷早第三纪同沉积断裂作用对沉积充填的控制[J].中国科学:D辑,2003,33(11):1025-1036.
[30]董洁,陈世悦,李聪.辽河西部凹陷欢喜岭地区沙河街组三段层序地层与沉积相研究[J].地球科学与环境学报,2010,32(3):245-251.
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