s
  • 首页
  • 学报简介
  • 编委会
  • 投稿指南
  • 常见问题解答
  • 预出版
  • 过刊浏览
  • 联系我们
  • Engilsh

本文将参加年度优秀论文评选,如果您觉得这篇文章很好,请投下您宝贵的一票,谢谢! 支持(0)   不支持(0)

Source-sink System and Sedimentary Model of Progradational Fan Delta Controlled by Restricted Ancient Gully: An Example in the Enping Formation in the Southern Baiyun Sag,Pearl River Mouth Basin,Northern South China Sea
投稿时间:2020-05-22  修订日期:2020-11-07  点此下载全文
引用本文:FENG Congjun,YAO Xingzong,YANG Haizhang,LI Daming,SUN Mengsi.2021.Source-sink System and Sedimentary Model of Progradational Fan Delta Controlled by Restricted Ancient Gully: An Example in the Enping Formation in the Southern Baiyun Sag,Pearl River Mouth Basin,Northern South China Sea[J].ACTA GEOLOGICA SINICA(English edition),95(1):232~247
摘要点击次数: 470
全文下载次数: 715
DOI:10.1111/1755-6724.14627
作者单位E-mail
FENG Congjun 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China fengcj@nwu.edu.cn 
YAO Xingzong 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China  
YANG Haizhang 3 CNOOC Research Institute Co.,Ltd.,Beijing 100028,China  
LI Daming 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China  
SUN Mengsi 4 School of Petroleum Engineering and Environmental Engineering,Yan'an University,Yan'an,Shaanxi 716000,China  
 
Author NameAffiliationE-mail
FENG Congjun 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China fengcj@nwu.edu.cn 
YAO Xingzong 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China  
YANG Haizhang 3 CNOOC Research Institute Co.,Ltd.,Beijing 100028,China  
LI Daming 1 State Key Laboratory of Continental Dynamics,Northwest University,Xi’an 710069,China2 Department of Geology,Northwest University,Xi’an 710069,China  
SUN Mengsi 4 School of Petroleum Engineering and Environmental Engineering,Yan'an University,Yan'an,Shaanxi 716000,China  
Abstract:Tectonic activity occurred during the depositional period of the Enping Formation in the southern Baiyun Sag in the Pearl River Mouth Basin,with a series of synsedimentary faults and a set of large fan delta reservoir bodies developing.There is no data from drilling,cores,etc.for this area,so this paper applies three-dimensional seismic data to study the structural style of the steep slope zone,the seismic facies characteristics of fan deltas,and the source-sink system and sedimentary model of the Enping Formation.The control action of tectonic activity on fan deltaic sedimentary systems is studied by combining interpretation of fault systems,dissection of structural styles,seismic reflection structure,seismic facies geometry,and seismic attribute analysis,together with theoretical analysis of the source-sink deposition process. The Baiyun Sag has experienced tectonic activity since the Eocene, and a series of synsedimentary faults are developed in the southern steep slope zone.Under the common control of multiple large synsedimentary faults,a large ancient gully formed in the steep slope zone in the south,which gradually widened from south to north.The uplift area in the southern part of the sag was exposed for a long time during the deposition of the Enping Formation and consequently suffered weathering and erosion.The resulting sediments were transported through a system of provenance channels composed of slopes and an ancient gully to the depression area,where they were deposited and eventually converged to form a large fan delta.The fan delta presents the overall characteristics of NS strong wedge reflection and EW strong domal reflection—thick in the middle part and thin in the wings.It displays a lobe-shaped distribution on the plane,with the fan root pointing to the south slope.According to differences in reflection intensity from bottom to top,it can be subdivided into three stages of progradational sedimentary bodies—the southern uplift and denudation zone,the large ancient gully, and the fan delta—which together constitute a complete source-sink system.This represents a sedimentary model of progradational fan delta under the overall joint control of the restricted ancient gully and syndepositional faults.
keywords:synsedimentary fault,structural style,fan delta,ancient gully,source-sink system
查看全文  查看/发表评论  下载PDF阅读器
您是第93004648位访问者  京ICP备05032737号-7  京公网 安备110102004559
版权所有:Acta Geologica Sinica (English Edition)
主管单位:中国科学技术协会 主办单位:中国地质学会
地  址: 北京市阜成门外百万庄26号 邮编:100037 电话:010-68999024 E-mail: geoacta@163.com
本系统由北京勤云科技发展有限公司设计 

京公网安备 11010202007916号

WeChat