东海陆架盆地南部中生界沉积模式
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摘要
在沉积相综合分析基础之上,通过地震相分析的手段明确了东海陆架盆地南部中生界的沉积特征;结合古地理背景分析,建立了该区侏罗纪和白垩纪的沉积模式。侏罗纪时雁荡低凸起和瓯江凹陷均未形成,闽江凹陷和基隆凹陷连为一体,物源来自浙闽隆起区,发育滨浅海沉积体系,火山作用较为强烈。白垩纪晚期—古新世,随着太平洋板块俯冲角度的加大,浙闽隆起区发生裂陷,雁荡低凸起形成。西部的瓯江凹陷沉积了一套陆相的冲积扇-河流-三角洲-湖泊沉积体系;由于此间台北低凸起尚未起到分割作用,东部的闽江凹陷与基隆凹陷仍然连为一体,物源来自浙闽隆起带和台北水下火山岩带,发育滨浅海沉积体系,火山作用影响强烈。
Based on the comprehensive study of sedimentary facies,the authors clarified the sedimentary characteristics of Mesozoic in the southern part of the East China Sea Shelf basin by meansof seismic facies analysis.After the unit analysis of paleo-geographic setting,the sedimentary model of Jurassic and Cretaceous in this area is established.In Jurassic,neither Yandang low uplift nor Oujiang pit was formed,and the Minjiang pit and the Keelung pit were integrated.During the Late CretaceousPaleocene,with the increase of the subduction angle of the Pacific plate,the Zhejiang-Fujian uplift area was destroyed,forming the Yandang low uplift,and a continental alluvial fan fluvial River delta lake depositional system was deposited in the Oujiang pit in western China.Because the Taipei low uplift had not yet played the role of segmentation,the Minjiang pit in the East and the Keelung pit were still connected,the source came from the Zhejiang-Fujian uplift zone and the Taipei underwater volcanic rock zone.The coastal shallow sea depositional system was developed,and the volcanism had a strong influence.
Based on the comprehensive study of sedimentary facies,the authors clarified the sedimentary characteristics of Mesozoic in the southern part of the East China Sea Shelf basin by meansof seismic facies analysis.After the unit analysis of paleo-geographic setting,the sedimentary model of Jurassic and Cretaceous in this area is established.In Jurassic,neither Yandang low uplift nor Oujiang pit was formed,and the Minjiang pit and the Keelung pit were integrated.During the Late CretaceousPaleocene,with the increase of the subduction angle of the Pacific plate,the Zhejiang-Fujian uplift area was destroyed,forming the Yandang low uplift,and a continental alluvial fan fluvial River delta lake depositional system was deposited in the Oujiang pit in western China.Because the Taipei low uplift had not yet played the role of segmentation,the Minjiang pit in the East and the Keelung pit were still connected,the source came from the Zhejiang-Fujian uplift zone and the Taipei underwater volcanic rock zone.The coastal shallow sea depositional system was developed,and the volcanism had a strong influence.
引文
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[15]杨文达,崔征科,张异彪.东海地质与矿产[M].北京:海洋出版社,2010:390-405.Yang Wenda,Cui Zhengke,Zhang Yibiao.Geology and Mineral Resources of the East China Sea[M].Beijing:Marine Press,2010:390-405.
[16]杨传胜,李刚,杨长清,等.东海陆架盆地及其邻域岩浆岩时空分布特征[J].海洋地质与第四纪地质,2012,32(3):125-133.Yang Chuansheng,Li Gang,Yang Changqing,et al.Marine Geology&Quaternary Geology,2012,32(3):125-133.
[17]李家彪.东海区域地质[M].北京:海洋出版社,2008:452-519.Li Jiabiao.Regional Geology of the East China Sea[M].Beijing:China Ocean Press,2008:452-519.
[18]杨长清,李刚,龚建明,等.中国东南海域中生界油气地质条件与勘探前景[J].吉林大学学报(地球科学版),2015,45(1):1-12.Yang Changqing,Li Gang,Gong Jianming,et al.Petroleum Geological Conditions and Exploration Prospect of the Mesozoic in Southeast China Sea Area[J].Journal of Jilin University(Earth Science Edition),2015,45(1):1-12.
[2]杨长清,杨传胜,李刚,等.东海陆架盆地南部中生代构造演化与原型盆地性质[J].海洋地质与第四纪地质,2012,32(3):105-111.Yang Changqing,Yang Chuansheng,Li Gang,et al.Mesozoic Tectonic Evolution and Prototype Basin Characters in the Southern East China Sea Shelf Basin[J].Marine Geology&Quaternary Geology,2012,32(3):105-111.
[3]梁若冰.东海陆架盆地南部中生界分布浅析[J].海洋石油,2012,32(3):18-22.Liang Ruobing.The Distribution of Mesozoic in the Southern Part of East China Sea Shelf Basin[J].Offshore Oil,2012,32(3):18-22.
[4]龚建明,李刚,杨长清,等.东海南部三叠纪地层分布[J].海洋地质与第四纪地质,2012,32(3):119-124.Gong Jianming,Li Gang,Yang Changqing,et al.Distribution of Triassic Strata in the Southern East China Sea[J].Marine Geology&Quaternary Geology,2012,32(3):119-124.
[5]李智高,龚建明,操应长,等.东海南部及邻区海陆中生代沉积特征对比[J].海洋地质与第四纪地质,2015,35(1):29-35.Li Zhigao,Gong Jianming,Cao Yingchang,et al.Comparision of Sedimentary Characteristics of the Mesozoic in Southern East China Sea and Adjacent Uplifting Areas[J].Marine Geology&Quaternary Geology,2015,35(1):29-35.
[6] Li Sanzhong,Zhao Guohun,Dai Liming,et al.Mesozoic Basins in Eastern China and Their Bearings on the Deconstruction of the North China Craton[J].Journal of Asian Earth Sciences,2012,47:64-79.
[7]杨艳秋,李刚,戴春山.东海陆架盆地西部坳陷带中生界分布特征及其有利区探讨[J].世界地质,2011,30(3):396-403.Yang Yanqiu,Li Gang,Dai Chunshan.Characteristics of Mesozoic Distribution and Discussion on Its Favourable Area in Western Depression Zone of East China Sea Shelf Basin[J].Global Geology,2011,30(3):396-403.
[8]姜亮.东海陆架盆地油气资源勘探现状及含油气远景[J].中国海上油气:地质,2003,17(1):1-5.Jiang Liang.Exploration Status and Perspective of Petroleum Resources in East China Sea Shelf Basin[J].China Offshore Oil and Gas:Geology,2003,17(1):1-5.
[9]冯晓杰,张川燕,王春修,等.东海陆架和台西南盆地中生界及其油气勘探潜力[J].中国海上油气:地质,2001,15(5):306-310,316.Feng Xiaojie,Zhang Chuanyan,Wang Chunxiu,et al.Mesozoic in the East China Sea Shelf and Taixinan Basin and Its Petroleum Potential[J].China Offshore Oil and Gas:Geology,2001,15(5):306-310,316.
[10]高乐.东海陆架中生代残余盆地特征及勘探方向探讨[J].中国海上油气:地质,2005,17(3):148-152.Gao Le.Mesozoic Remnant Basin Characteristics and Hydrocarbon Exploration Direction on East China Sea Shelf[J].China Offshore Oil and Gas:Geology,2005,17(3):148-152.
[11]龚建明,李刚,杨传胜,等.东海陆架盆地南部中生界分布特征与油气勘探前景[J].吉林大学学报(地球科学版),2013,43(1):20-27.Gong Jianming,Li Gang,Yang Chuansheng,et al.Hydrocarbon Prospecting of Mesozoic Strata in Southern East China Sea Shelf Basin[J].Journal of Jilin Unviersity(Earth Science Edition),2013,43(1):20-27.
[12]刘金水,廖宗廷,贾健谊,等.东海陆架盆地地质结构及构造演化[J].上海地质,2003(3):1-6.Liu Jinshui,Liao Zongting,Jia Jianyi,et al.The Geological Structure and Tectonic Evolution of the East China Sea Shelf Basin[J].Shanghai Geology,2003(3):1-6.
[13]胡文博.东海陆架盆地南部中生界沉积体系研究[D].北京:中国地质大学,2012.Hu Wenbo.The Mesozoic Sedimentary Systems in the Southern East China Sea Shelf Basin[D].Beijing:China Universtiy of Geosciences,2012.
[14]索艳慧,李三忠,戴黎明,等.东海陆架盆地构造单元划分与特征[J].海洋地质与第四纪地质,2010,30(6):49-58.Suo Yanhui,Li Sanzhong,Dai Liming,et al.Division and Characteristics of Tectonic Units of the East China Sea Shelf Basin[J].Marine Geology&Quaternary Geology,2010,30(6):49-58.
[15]杨文达,崔征科,张异彪.东海地质与矿产[M].北京:海洋出版社,2010:390-405.Yang Wenda,Cui Zhengke,Zhang Yibiao.Geology and Mineral Resources of the East China Sea[M].Beijing:Marine Press,2010:390-405.
[16]杨传胜,李刚,杨长清,等.东海陆架盆地及其邻域岩浆岩时空分布特征[J].海洋地质与第四纪地质,2012,32(3):125-133.Yang Chuansheng,Li Gang,Yang Changqing,et al.Marine Geology&Quaternary Geology,2012,32(3):125-133.
[17]李家彪.东海区域地质[M].北京:海洋出版社,2008:452-519.Li Jiabiao.Regional Geology of the East China Sea[M].Beijing:China Ocean Press,2008:452-519.
[18]杨长清,李刚,龚建明,等.中国东南海域中生界油气地质条件与勘探前景[J].吉林大学学报(地球科学版),2015,45(1):1-12.Yang Changqing,Li Gang,Gong Jianming,et al.Petroleum Geological Conditions and Exploration Prospect of the Mesozoic in Southeast China Sea Area[J].Journal of Jilin University(Earth Science Edition),2015,45(1):1-12.
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