吉林大学学报(地球科学版) ›› 2019, Vol. 49 ›› Issue (1): 131-138.doi: 10.13278/j.cnki.jjuese.20180129

• 海洋地质与资源 • 上一篇    

东海陆架盆地南部中生界沉积模式

王蛟1,2, 李智高3, 蔡来星1,2, 龚奇勇1,2   

  1. 1. 中国地质调查局青岛海洋地质研究所, 山东 青岛 266071;
    2. 青岛海洋科学与技术试点国家实验室海洋矿产资源评价与探测技术功能实验室, 山东 青岛 266071;
    3. 中海石油(中国)有限公司深圳分公司, 广东 深圳 518000
  • 收稿日期:2018-05-24 发布日期:2019-01-18
  • 通讯作者: 蔡来星(1985-),男,在站博士后,主要从事油气地质学方面的研究,E-mail:qingxin717717@126.com E-mail:qingxin717717@126.com
  • 作者简介:王蛟(1977-),男,研究员,博士,主要从事沉积学方面的研究,E-mail:wangjiao004@sina.com
  • 基金资助:
    国家自然科学基金项目(41476053);国家海洋地质专项(DD20160147);中国地质调查局项目(DD20160153,DD20190211)

Sedimentary Model of Mesozoic in the Southern Part of the East China Sea Shelf Basin

Wang Jiao1,2, Li Zhigao3, Cai Laixing1,2, Gong Qiyong1,2   

  1. 1. Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266071, Shandong, China;
    2. Laboratory for Marine Mineral Resources, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266071, Shandong, China;
    3. Shenzhen Branch, Cnooc(China) co., LTD. Shenzhen 518000, Guangdong, China
  • Received:2018-05-24 Published:2019-01-18
  • Supported by:
    Supported by National Natural Science Foundation of China (41476053),National Marine Geology Special Project of China (DD20160147) and Project of China Geological Survey (DD20160153,DD20190211)

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。

关键词: 东海陆架盆地, 中生界, 沉积体系, 沉积模式

Abstract: 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 means of 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 Cretaceous-Paleocene, 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.

Key words: East China Sea Shelf basin, Mesozoic, depositional system, sedimentary model

中图分类号: 

  • P618.13
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