冀中坳陷淀南地区沙河街组一段层序地层及沉积演化
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摘要
综合利用岩心、钻井、测井以及地震资料,对冀中坳陷淀南地区沙河街组一段进行了层序地层划分,建立了以体系域为单元的等时层序地层对比格架,将沙河街组一段划分为一个三级层序,并以岩性、岩相以及地层叠置样式的变化进一步细分出低位、湖侵和高位体系域。在层序地层格架的基础上,分析了沙河街组一段沉积相的构成、演化和分布规律,认为沙河街组一段主要发育三角洲相和湖泊相沉积。
Based on an integration of core,drilling,logging and seismic data,the paper performs sequence stratigraphic division of the first member of the Eogene Shahejie Formation(Es1)in the Diannan area of Jizhong Depression and constructs an isochronal sequence stratigraphic correlation framework with one system tract as a unit.One third-order sequence is recognized in Es1,and it can be subdivided into a lowstand,a lake transgression and a highstand systems tract based on the stratigraphic superimposition patterns as well as its lithologic and lithofacies changes.The construction of the isochronous stratigraphic framework shed light on the analysis of composition,evolution and distribution pattern of its sedimentary facies.The result indicates that the Es1 is dominated by delta and lacustrine facies.
Based on an integration of core,drilling,logging and seismic data,the paper performs sequence stratigraphic division of the first member of the Eogene Shahejie Formation(Es1)in the Diannan area of Jizhong Depression and constructs an isochronal sequence stratigraphic correlation framework with one system tract as a unit.One third-order sequence is recognized in Es1,and it can be subdivided into a lowstand,a lake transgression and a highstand systems tract based on the stratigraphic superimposition patterns as well as its lithologic and lithofacies changes.The construction of the isochronous stratigraphic framework shed light on the analysis of composition,evolution and distribution pattern of its sedimentary facies.The result indicates that the Es1 is dominated by delta and lacustrine facies.
引文
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17Galloway W E,Hobday D K.Terrigenous clastic depositional sys-tems(2nd Edition)[M].NewYork:Springer-Verlag,1996.157-192
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19梁宏斌,朱光有,张水昌,等.冀中坳陷晋县凹陷下第三系断陷湖盆的演化与烃源岩的形成[J].石油实验地质,2005,27(6):583～587
20蔡李梅,陈红汉,李纯泉,等.济阳坳陷东营凹陷沙三中亚段流体包裹体古流体势场恢复[J].石油与天然气地质,2009,30(1):17～25
2杜金虎,邹伟宏,费宝生,等.冀中坳陷古潜山复式油气聚集区[M].北京:科学出版社,2002.189～213
3王化爱.东营凹陷古近系岩性地层油气藏层序地层学特征[J].石油与天然气地质,2010,31(2):158～164
4Catuneanu O,Abreu V,Bhattacharya J P,et al.Towards the stan-dardization of sequence stratigraphy[J].Earth-Science Reviews,2009,92:1-33
5冯友良,李思田,邹才能.陆相断陷盆地层序地层学研究[M].北京:科学出版社,2006.165～168
6姜在兴,向树安,陈秀艳,等.淀南地区古今系沙河街组层序地层模式[J].沉积学报,2009,27(5):931～938
7慕德梁,孟卫工,李成,等.断陷盆地陡坡带构造样式与油气聚集——以渤海湾盆地辽河坳陷西部凹陷陡坡带为例[J].石油与天然气地质,2009,30(5):635～642
8刘永强,刘晓龙.冀中坳陷饶阳凹陷留西地区沙三上亚段层序地层与隐蔽油藏[J].石油与天然气地质,2009,30(6):747～753
9陈欢庆,朱筱敏,董艳蕾,等.深水断陷盆地层序地层分析与岩性-地层油气藏预测——以中国南海C盆地深水区古近系T组为例[J].石油与天然气地质,2009,30(5):626～634
10Vail P R,Mitchum R M,Thompson S.Seismic stratigraphy and global changes of sea level(Part3):relative changes of sea level from coastal onlap[A].In:Seismic stratigraphy;applications to hydrocarbon exploration,Payton[C].AAPG Memoir,1977,26:63-81
11赖维成,徐长贵,王晓刚,等.秦南凹陷古近系层序地层和沉积体系研究及油气勘探方向探讨[J].中国海上油气,2007,19(5):300～305
12石世革.黄骅坳陷板桥凹陷古近系沙一段中部层序地层学研究与岩性油气藏勘探[J].石油与天然气地质,2008,29(3):320～325
13薛良清.湖相盆地中的层序、体系域与隐蔽油气藏[J].石油与天然气地质,2002,23(2):115～120
14纪友亮,杜金虎,赵贤正,等.冀中坳陷饶阳凹陷古近系层序地层学及演化模式[J].古地理学报,2006,8(3):397～406
15姜在兴,杨伟利,操应长.东营凹陷沙河街组三段—二段下亚段沉积层序及成因[J].石油与天然气地质,2002,23(2):127～130
16龙更生,施和生,王英民,等.珠江口盆地惠州凹陷新近系坡折带成因类型及对地层沉积的控制作用[J].石油与天然气地质,2009,30(2):215～222
17Galloway W E,Hobday D K.Terrigenous clastic depositional sys-tems(2nd Edition)[M].NewYork:Springer-Verlag,1996.157-192
18吴光华,王红亮,林会喜,等.渤海湾盆地埕岛地区东营组沉积特征及其油气地质意义[J].石油与天然气地质,2009,30(1):33～40
19梁宏斌,朱光有,张水昌,等.冀中坳陷晋县凹陷下第三系断陷湖盆的演化与烃源岩的形成[J].石油实验地质,2005,27(6):583～587
20蔡李梅,陈红汉,李纯泉,等.济阳坳陷东营凹陷沙三中亚段流体包裹体古流体势场恢复[J].石油与天然气地质,2009,30(1):17～25
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