石油学报 ›› 2000, Vol. 21 ›› Issue (2): 14-20.DOI: 10.7623/syxb200002003

• 地质勘探 • 上一篇    下一篇

渤海湾盆地新生代走滑构造与油气聚集

池英柳, 赵文智   

  1. 石油勘探开发科学研究院, 北京100083
  • 收稿日期:1998-06-08 修回日期:1999-01-24 出版日期:2000-03-25 发布日期:2010-05-21
  • 作者简介:池英柳,男,1963年4月生.1983年毕业于月汉石油学院.现为石油勘探开发科学研究院地质听高级工程师通讯处:北京学院路910信箱地质所.
  • 基金资助:
    中国石油天然气总公司“九五”重点科研课题“渤海湾盆地含油气系统与油气分布规律”的部分成果

STRIKE-SLIP DEFORMATION DURING THE CENOZOIC AND ITS INFLUENCE ON HYDROCARBON ACCUMULA-TION IN THE BOHAI BAY BASIN

CHI Yin-liu   

  1. Scientific Research Institute of Petroleum Exploration and Development, Beijing
  • Received:1998-06-08 Revised:1999-01-24 Online:2000-03-25 Published:2010-05-21

摘要: 渤海湾盆地形成于新生代右旋扭张构造背景,走滑作用是新生代构造变形、盆地形成和油气聚集的主要控制因素之一.深部断裂的走滑活动,形成了三条北北东向右行主干走滑断裂带和两条北西西向左行主干走滑断裂带,及一系列不同型式的伴生构造,如雁行断裂、雁行褶皱和旋扭构造等.断块走滑位移量的变化,使得引张裂陷作用和挤压抬升作用并存,这可能是早第三纪裂陷、沉积中心由盆地外带向盆地中心迁移与盆地外带抬升、侵蚀作用同时发生的主要机制,也是早第三纪盆地有很强分隔性的重要成因机制之一.走滑派生的挤压、褶皱和抬升作用对渤海湾盆地主要油气圈闭的形成和分布有不同程度的控制作用,盆地不同部分主力含油气层系差异与走滑变形强度有一定关系.

关键词: 渤海湾盆地, 新生代, 走滑构造, 盆地形成, 油气聚集

Abstract: The Bohai Bay Basin was developed in a dextral transtensional tectonic setting during the Cenozoic,therefore,strike-slip movement was one of major controlling factors on structural deformation,basin formation and hydrocarbon accumulation.Strike-slip activities along deep fractures created three zones of NNE trending,rightlateral,master wrench fault systems,two zones of NWW trending,left-lateral,master wrench fault systems,and a number of different kinds of strike-slip associated structures,such as echelon fractures and folds and rotary structures.The difference in the strike-slip displacement of faulted blocks was responsible for coexisting of extension rifting and compressive uplifting.This may be a major mechanism of that shifting of rifting and depocenter from the outer part of the basin to the central part occurred synchronously with uplifting and eroding of the outer part of the basin in the Paleogene,and one of important genetic mechanism of that the sags of the basin are strongly separated by the uplifts.Compression,folding and uplifting,induced by the strike-slip movement,controlled in different degree the formation and distribution of major hydrocarbon traps in the basin.Difference in the major oil and gas bearing series in different parts of the basin is partly related to the strength of strike-slip deformation.

Key words: Bohai Bay Basin, Cenozoic, strike-slip structure, basin formation, hydrocarbon accumulation

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