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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
Abstract
AAPG Bulletin, V.
2011. The American Association of Petroleum Geologists. All rights reserved.
DOI:10.1306/06301009207
Fault
growth and linkage: Implications for tectonosedimentary evolution in the Chezhen Basin of Bohai Bay, eastern China


Jinbao Su,1 Wenbin Zhu,2 Jia Wei,3 Leiming Xu,4 Yanfeng Yang,5 Zhiqiang Wang,6 Zhiyong Zhang7
1State Key Laboratory for Mineral Deposits Research (Nanjing University), School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China; jin.su@163.com
2State Key Laboratory for Mineral Deposits Research (Nanjing University), School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China; zwb@nju.edu.cn
3Sinopec Geophysical Research Institute, Nanjing 210014, China
4Sinopec Geophysical Research Institute, Nanjing 210014, China
5Geological Institute of the Hekou Oil Production Plant, Shengli Oilfield, Sinopec, Dongying 257068, China
6Geological Institute of the Hekou Oil Production Plant, Shengli Oilfield, Sinopec, Dongying 257068, China
7State Key Laboratory for Mineral Deposits Research (Nanjing University), School of Earth Sciences and Engineering, Nanjing University, Nanjing 210093, China
ABSTRACT
The Chezhen Basin has highly representative structural features of the Jiyang depression, Bohai Bay area. The structural geometry and the boundary fault
linkage exert a strong influence on basin development and depositional environment. Based on structural analysis, at least six early
fault
segments are identified in the northern boundary of the Chezhen Basin. These
fault
segments are important in controlling stratal architecture and distribution. The antecedent structures controlled subbasin initiation and development. The Cenozoic rift initiated in the early Eocene with the development of six isolated
fault
segments associated with deposition of the Es4 member. During the deposition of the lower Es3 member, these six
fault
segments quickly linked and formed the present architecture frame.
Fault
linkage has not resulted in a redistribution of displacement. With the expansion of the Chezhen Basin, the depocenters of the upper strata were kept in nearly the same sites until the early Miocene, then the activity of the Chengnan
fault
ceased.
Fault
linkage is a significant event in basin evolution, and its process may be very rapid. However, the
fault
linkage exerted considerable control on sedimentation and evolution of the basin. This study demonstrates that it is necessary to integrate structural and stratigraphic data to reconstruct the temporal and spatial evolution of normal
fault
zones.
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