松辽盆地北部古龙地区登娄库组沉积与构造演化耦合关系研究
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摘要
为明确松辽盆地北部古龙地区登娄库组沉积与构造演化的耦合关系,本文利用古龙地区的地震、钻井、测井和岩心等资料,通过古龙地区登娄库组的构造演化特征、层序地层格架和沉积特征综合研究,对古龙地区登娄库组构造演化对沉积充填特征的控制作用进行分析,结果表明,古龙地区登娄库组沉积时期为断坳转换期,可进一步划分为断陷盆地萎缩阶段早期和晚期、坳陷盆地孕育阶段早期和晚期4个构造演化阶段,分别对应4个三级层序(Sq1-Sq4);古龙地区登娄库组主要发育冲积扇、扇三角洲、湖底扇、河流相、辫状河三角洲、浅水三角洲、湖泊沉积等沉积体系;登娄库组构造演化控制着沉积充填演化,各构造演化阶段沉积体系分布特征及沉积演化模式具有明显的差异性,即沉积充填特征与构造演化过程具有良好的耦合关系。具体表现为:断陷盆地萎缩阶段早期(Sq1)和晚期(Sq2)下部地层受断陷作用控制,沉积充填特征符合陆相断陷湖盆沉积演化模式;断陷盆地萎缩阶段晚期(Sq2)上部、坳陷盆地孕育阶段早期(Sq3)和晚期(Sq4)地层具有坳陷层序地层特征,其中萎缩阶段晚期(Sq2)上部和坳陷盆地孕育阶段早期(Sq3)属于坳陷盆地"河流—浅水三角洲"沉积模式;坳陷盆地孕育阶段晚期(Sq4)发育干旱背景下的坳陷湖盆"洪水—河漫湖"沉积模式。
In order to clear the coupling relationship between sedimentary and tectonic evolution in the Denglouku Formation in Gulong area of northern Songliao Basin,we use seismic,drilling, logging and core data of Gulong area,by comprehensive study of tectonic evolution characteristics,sequence stratigraphic framework and sedimentary characteristics to analysis the control function of tectonic evolution to sedimentary filling characteristics in Denglouku Formation of Gulong area,the results show that in Denglouku Formation of Gulong area the depositional period is fault-depressed diversionary,also can be further divided into four tectonic evolution stage,which is early and late shrinking stage in fault basin,early and late embryonic stage in depression basin,corresponding to the four third-order sequence(Sq1-Sq4); Denglouku Formation of Gulong area main development alluvial fan,fan delta,sublacustrine fan,fluvial facies,braided river delta,shallow water delta and lake sediments depositional systems;Tectonic evolution controls the sedimentary filling evolution in Denglouku Formation, the sedimentary system distribution characteristics and sedimentary evolution model has significant difference in each tectonic evolution stage,that is,sedimentary filling characteristic and tectonic evolution process has good coupling relationship.The concrete embody:in early (Sql)and late(Sq2 ) shrinking stage,lower strata of fault basin was controlled by fault,the sedimentary filling characteristics accord with the sedimentary evolution mode of terrestrial riftsubsidence lacustrine basin;The upper of fault basin in the late(Sq2) shrinking stage,and the formation of depression basin in early(Sq3 ) and late(Sq4 ) embryonic stage has depression sequence stratigraphic features,which the upper of fault basin in the late(Sq2 ) shrinking stage and early(Sq3 ) embryonic stage in depression basin belongs to "rivers-shallow water delta" depositional model of depression basin;The late(Sq4 ) embryonic stage in depression basin development " flood-overlake" depositional model in depression lake basin under the arid background.
In order to clear the coupling relationship between sedimentary and tectonic evolution in the Denglouku Formation in Gulong area of northern Songliao Basin,we use seismic,drilling, logging and core data of Gulong area,by comprehensive study of tectonic evolution characteristics,sequence stratigraphic framework and sedimentary characteristics to analysis the control function of tectonic evolution to sedimentary filling characteristics in Denglouku Formation of Gulong area,the results show that in Denglouku Formation of Gulong area the depositional period is fault-depressed diversionary,also can be further divided into four tectonic evolution stage,which is early and late shrinking stage in fault basin,early and late embryonic stage in depression basin,corresponding to the four third-order sequence(Sq1-Sq4); Denglouku Formation of Gulong area main development alluvial fan,fan delta,sublacustrine fan,fluvial facies,braided river delta,shallow water delta and lake sediments depositional systems;Tectonic evolution controls the sedimentary filling evolution in Denglouku Formation, the sedimentary system distribution characteristics and sedimentary evolution model has significant difference in each tectonic evolution stage,that is,sedimentary filling characteristic and tectonic evolution process has good coupling relationship.The concrete embody:in early (Sql)and late(Sq2 ) shrinking stage,lower strata of fault basin was controlled by fault,the sedimentary filling characteristics accord with the sedimentary evolution mode of terrestrial riftsubsidence lacustrine basin;The upper of fault basin in the late(Sq2) shrinking stage,and the formation of depression basin in early(Sq3 ) and late(Sq4 ) embryonic stage has depression sequence stratigraphic features,which the upper of fault basin in the late(Sq2 ) shrinking stage and early(Sq3 ) embryonic stage in depression basin belongs to "rivers-shallow water delta" depositional model of depression basin;The late(Sq4 ) embryonic stage in depression basin development " flood-overlake" depositional model in depression lake basin under the arid background.
引文
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冯有良,李思田,解习农.2000.陆相断陷盆地层序形成动力学模式.地学前缘,7(3):119-132.
Feng Youliang,Li Sitian and Xie Xinong.2000.Dynamics of sequence generation and sequence stratigraphic model in conti- nental rift-subsidence basin.Earth Science Frontiers,7(3):119—132.
付广,付晓飞,王剑秦.2000.长垣以东地区登娄库组含气系统及成藏条件分析.断块油气田,7(3):1-4.
Fu Guang,Fu Xiaofei and Wang Jianqin.2000.Division of gas bearing systems and analysis on formation conditions of gas reservior in the east of Changyuan region,Daqing oilfied.Fault-Block Oil & Gas Field,7(3):1—4.
付晓飞,王朋岩,吕延防,付广,杨勉,孟庆芬.2007.松辽盆地西斜坡构造特征及对油气成藏的控制.地质科学,42 (2):209—222.
Fu Xiaofei,Wang Pengyan,Lu Yanfang,Fu Guang,Yang Mian and Meng Qingfen.2007.Tectonic features and control of oil- gas accumulation in the west slope of Songliao Basin.Chinese Journal of Geology,42(2):209—222.
葛荣峰,张庆龙,王良书,解国爱,徐士银,陈娟,王锡勇.2010.松辽盆地构造演化与中国东部构造体制转换.地质论评,56(2):180-195.
Ge Rongfeng,Zhang Qinglong,Wang Liangshu,Xie Guo'ai,Xu Shiyin.Chen Juan and Wang Xiyong.2010.Tectonic evolution of Songliao Basin and the prominent tectonic regime transition in eastern China.Geological Review,56(2):180—195.
黄清华,郑玉龙,杨明杰,李星军,韩敏欣,陈春瑞.1999.松辽盆地白垩纪古气候研究.微体古生物学报,16(1):95- 103.
Huang Qinghua,Zheng Yulong,Yang Mingjie,Li Xingjun,Han Minxin and Chen Chunrui.1999.On Cretaceous paleoclimate in the Songliao Basin.Acta Micropalaeontologica Sinica,16(1):95—103.
黄翠叶,申维.2007.松辽盆地东南隆起区深层断陷的构造特征及其对油气勘探的意义.地质通报,26(7):841—848.
Huang Cuiye and Shen Wei.2007.Structural characteristics of deep fault depressions in the southeastern uplift area of the Songliao Basin,China and their significance for petroleum exploration.Geological Bulletin of China,26(7 ):841—848.
林畅松,郑和荣,任建业,刘景彦,邱以刚.2003.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.中国科学(D辑),33(11):1025—1036.
Lin Changsong,Zheng Herong.Ren Jianye,Liu Jingyan and Qiu Yigang.2004.The control of syndepositional faulting on the Eogene sedimentary basin fills of the Dongying and Zhanhua Sags,Bohai Bay Basin.Science in China(Series D),47 (9):769—782.
路智勇.2008.渤海湾盆地车镇凹陷古近系构造样式对沉积及储集层的影响.古地理学报,10(3):277—285.
Lu Zhiyong.2008.Influence of the Paleogene structural styles on deposition and reservoir in Chezhen Sag,Bohai Bay Basin. Journal of Palaeogeography,10(3):277—285.
李桂俊,李国艳,胡耀东.2009.松辽盆地深层地层及构造特征.吉林地质,28(2):4-14.
Li Guijun,Li Guoyan and Hu Yaodong.2009.Deep strata and structural features of Songliao Basin.Jilin Geology,2%(2):4—14.
楼章华,兰翔,卢庆梅,蔡希源.1999.地形、气候与湖面波动对浅水三角洲沉积环境的控制作用——以松辽盆地北部东区葡萄花油层为例.地质学报,73(1):83—92.
Lou Zhanghua,Lan Xiang,Lu Qingmei and Cai Xiyuan.1999.Controls of the topography,climate and lake level fluctuation on the depositional of a shallow water delta——A case study of the Cretaceous putaohua reservoir in the northern part of Songliao Basin.Acta Geologica Sinica,73(1):83—92.
潘树新,卫平生,王天奇,王建功,梁苏娟,赵志魁,赵占银,黄世伟.2012.大型坳陷湖盆“洪水-河漫湖”沉积——以干旱背景下的松南泉四段为例.地质论评,58(1):41—52.
Pan Shuxin,Wei Pingsheng,Wang Tianqi.Wang Jiangong,Liang Sujuan,Zhao Zhikui,Zhao Zhanyin and Huang Shiwei.2012. Sedimentary characteristics of flood-overlake in large depression basin——Taking the 4th member,Quantou Formation,Lower Cretaceous,in southern Songliao Basin as an example.Geological Review,58(1):41—52.
王华,林松辉,王根发,庄新国,张瑞生,杨红.2000.Cevennes盆地北坳陷区独特的沉积与构造演化的耦合关系.沉积与特提斯地质,20(2):43—55.
Wang Hua,Lin Songhui,Wang Genfa,Zhuang Xinguo,Zhang Ruisheng and Yang Hong.2000.Sedimentary and tectonic evolution of the north depression in the Cevennes Coal Basin,France.Sedimentary Geology and Tethyan Geology,20 (2):43—55.
王志武,杨继良,高瑞祺.1993.中国石油地质志(卷二),大庆油田.北京:石油工业出版社.79—507.
Wang Zhiwu,Yang Jiliang and Gao Ruiqi.1993.Petroleum Geology in China(VolumeⅡ),Daqing Oilfield.Beijing:Petroleum Industry Press.79—507.
殷进垠,刘和甫,迟海江.2002.松辽盆地徐家围子断陷构造演化.石油学报,23(2):26—29.
Yin Jinyin,Liu Hefu and Chi Haijiang.2002.Evolution and gas-accumulation of Xujiaweizi depression in Songliao Basin.Acta Petrolei Sinica,23(2);26—29.
于建成,辛仁臣,乔敏,王连君.2002.松辽盆地北部西部断陷登娄库组三段沉积体系及油气远景.中国石油勘探,7 (4):46—50.
Yu Jiancheng,Xin Renchen,Qiao Min and Wang Lianjun.2002.Depositional system and petroleum prospect of the third section of Denglouku Formation in western fault depression of north Songliao Basin.China Petroleum Exploration,7(4):46—50.
云金表,金之钧,殷进垠.2002.松辽盆地继承性断裂带特征及其在油气聚集中的作用.大地构造与成矿学,26(4): 379—385.
Yun Jinbiao,Jin Zhijun and Yin Jinyin.2002.Characteristics of inherited fault belts and their effect on hydrocarbon accumulation.Geolectonica et Metallogenia,26(4):379—385.
朱德丰,任延广,吴河勇,吴根耀,万传彪,吴相梅.2007.松辽盆地北部隐伏二叠系和侏罗系的初步研究.地质科学,42 (4):690-708.
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