苏北盆地晚白垩世泰州期原型盆地恢复
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摘要
通过研究区域地震剖面、砂砾岩分布特征等,确定苏北盆地晚白垩世原始盆地沉积边界;研究重矿物分布特征、砂岩体展布特征及联井剖面等,确定当时的沉积物源方向;通过区域地震相与单井相的结合,来恢复全区沉积相,进而恢复当时的原型盆地。研究认为,泰一段沉积时期,以建湖隆起为界,苏北盆地分为东台坳陷和盐阜坳陷2个大盆,在这2个坳陷内的凸起控制着地层的沉积厚度,沉积物源主要来自通扬隆起、鲁苏隆起和建湖隆起;而泰二段沉积时期,整个苏北盆地可能为一个大盆,东部以湖泊相沉积为主,西部为河流相与泛滥平原相,沉积物源来自通扬隆起和建湖隆起,但规模较小。
Based on studies of regional seismic profiles and conglomerate distribution characteristics,original deposition boundaries of the Northern Jiangsu Basin during late Cretaceous are confirmed.Researches of heavy minerals distribution,sandstone thickness changes and connected profiles of wells have found out sedimentary sources.Combining seismic facies and single-well facies,sedimentary facies of the region are restored;hence the prototype basin is also restored.When the 1st member of Taizhou Formation of Upper Cretaceous is deposited,the Northern Jiangsu Basin is divided in to the Dongtai Depression and the Funing Depression by the Jianhu Uplift.Uplifts in the 2 depressions control sedimentary thickness.Sedimentary materials come from the Tongyang,Lusu and Jianhu Uplifts.When the 2nd member of Taizhou Formation is deposited,the Northern Jiangsu Basin is an integrated basin.The east of the basin is dominated by lake facies and the west by fluvial and flood plain facies.Sedimentary materials come from the Tongyang and Jianhu Uplifts,yet the amount is relatively smaller.
Based on studies of regional seismic profiles and conglomerate distribution characteristics,original deposition boundaries of the Northern Jiangsu Basin during late Cretaceous are confirmed.Researches of heavy minerals distribution,sandstone thickness changes and connected profiles of wells have found out sedimentary sources.Combining seismic facies and single-well facies,sedimentary facies of the region are restored;hence the prototype basin is also restored.When the 1st member of Taizhou Formation of Upper Cretaceous is deposited,the Northern Jiangsu Basin is divided in to the Dongtai Depression and the Funing Depression by the Jianhu Uplift.Uplifts in the 2 depressions control sedimentary thickness.Sedimentary materials come from the Tongyang,Lusu and Jianhu Uplifts.When the 2nd member of Taizhou Formation is deposited,the Northern Jiangsu Basin is an integrated basin.The east of the basin is dominated by lake facies and the west by fluvial and flood plain facies.Sedimentary materials come from the Tongyang and Jianhu Uplifts,yet the amount is relatively smaller.
引文
1王永建,王延斌,郑亚斌等.苏北盆地高邮凹陷泰州组烃源岩演化[J].石油实验地质,2007,29(4):87~79
2陈安定.苏北盆地第三系烃源岩排烃范围及油气运移边界[J].石油与天然气地质,2006,27(5):64~70
3陈安定.苏北盆地油源判别指标研究[J].石油实验地质,2007,29(4):73~77
4周荔青,吴聿元.苏北盆地浅层油气藏类型及分布特征[J].石油实验地质,2007,29(4):10~15
5刘成林,朱筱敏,费安玮等.苏北盆地白驹凹陷中浅层油气成藏研究[J].油气地质与采收率,2003,(3):36~38
6范文科,王建功,刘丽芳等.苏北盆地洪泽凹陷含油气系统研究[J].石油实验地质,2006,28(3):57~62
7赵俊青,夏斌,纪友亮等.临清坳陷西部侏罗纪—晚白垩世原型盆地恢复[J].石油勘探与开发,2005,32(3):15~21
8杜旭东,漆家福,陆克政等.大港探区中生代原型盆地恢复及成盆模式[J].应用基础与工程科学学报,1999,7(3):230~239
9杜旭东,李洪革,陆克政等.华北地台东部及邻区中生代(J—K)原型盆地分布及成盆模式探讨[J].石油勘探与开发,1999,26(4):5~9
10谭明友.渤海湾盆地东营—惠民凹陷孔店期原型盆地分析[J].石油实验地质,2003,25(4):348~352
11周小进,杨帆.中国南方新元古代—早古生代构造演化与盆地原型分析[J].石油实验地质,2007,29(5):10~15
12朱筱敏,杨俊生,张喜林.岩相古地理研究与油气勘探[J].古地理学报,2004,6(1):101~109
13金振奎,齐聪伟,薛建勤等.柴达木盆地北缘侏罗系沉积相[J].古地理学报,2006,8(2):199~210
2陈安定.苏北盆地第三系烃源岩排烃范围及油气运移边界[J].石油与天然气地质,2006,27(5):64~70
3陈安定.苏北盆地油源判别指标研究[J].石油实验地质,2007,29(4):73~77
4周荔青,吴聿元.苏北盆地浅层油气藏类型及分布特征[J].石油实验地质,2007,29(4):10~15
5刘成林,朱筱敏,费安玮等.苏北盆地白驹凹陷中浅层油气成藏研究[J].油气地质与采收率,2003,(3):36~38
6范文科,王建功,刘丽芳等.苏北盆地洪泽凹陷含油气系统研究[J].石油实验地质,2006,28(3):57~62
7赵俊青,夏斌,纪友亮等.临清坳陷西部侏罗纪—晚白垩世原型盆地恢复[J].石油勘探与开发,2005,32(3):15~21
8杜旭东,漆家福,陆克政等.大港探区中生代原型盆地恢复及成盆模式[J].应用基础与工程科学学报,1999,7(3):230~239
9杜旭东,李洪革,陆克政等.华北地台东部及邻区中生代(J—K)原型盆地分布及成盆模式探讨[J].石油勘探与开发,1999,26(4):5~9
10谭明友.渤海湾盆地东营—惠民凹陷孔店期原型盆地分析[J].石油实验地质,2003,25(4):348~352
11周小进,杨帆.中国南方新元古代—早古生代构造演化与盆地原型分析[J].石油实验地质,2007,29(5):10~15
12朱筱敏,杨俊生,张喜林.岩相古地理研究与油气勘探[J].古地理学报,2004,6(1):101~109
13金振奎,齐聪伟,薛建勤等.柴达木盆地北缘侏罗系沉积相[J].古地理学报,2006,8(2):199~210
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