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现代地质 ›› 2013, Vol. 27 ›› Issue (5): 999-1004.

• 构造和沉积特征 • 上一篇    下一篇

渤海辽东湾坳陷金县构造变换带发育特征

余一欣1,2,周心怀3,徐长贵3,魏刚3,吴奎3,张新颖4,杨克基4   

  1. 中国石油大学(北京)油气资源与探测国家重点实验室,北京 102249
  • 收稿日期:2013-05-07 修回日期:2013-07-01 出版日期:2013-10-17 发布日期:2013-10-31
  • 作者简介:余一欣,男,副教授,1977年出生,构造地质学专业,主要从事盆地分析和构造地质方面的研究工作。Email:yunxin0707@163.com。
  • 基金资助:

    国家自然科学基金项目(40802030,91114202);国家油气重大专项项目(2011ZX05031-001- 008HZ ,2011ZX05002-006-007HZ);中国石油大学(北京)基金项目(KYJJ2012-01-11)

Formation of JX Transfer Zone in the Liaodongwan Depression,Offshore Bohai Bay Basin

Yun Yi-xin1,2,ZHOU Xin-huai3,XU Chang-gui3,WEI Gang3,WU Kui3,ZHANG Xin-ying4,YANG Ke-ji4   

  1. State Key Laboratory of Petroleum Resources and Prospecting ,China University of Petroleum,Beijing 102249
  • Received:2013-05-07 Revised:2013-07-01 Online:2013-10-17 Published:2013-10-31

摘要:

根据地震资料和断层的位移-距离曲线,对辽东湾坳陷中部金县构造变换带的发育特征进行了分析。金县构造是一个发育在走滑断层叠置段内的大型含油气构造,属于郯庐走滑断裂带组成部分的辽中1号断裂带的两条分段断裂在金县地区发生相互作用和叠置,形成了在平面上呈菱形展布的走滑双重构造。菱形断块体同时也传递了分段断层的位移量,使其在空间上保持守恒,从而形成了金县斜向背斜型构造变换带。金县构造变换带的形成演化主要经历了孤立断层发育、变换带初始形成、变换带复杂化和变换带破裂4个阶段。针对渤海地区不同类型构造变换带进行深入分析,对指导油气勘探具有重要意义。

关键词: 构造变换带, 位移守恒, 走滑断裂, 金县构造, 辽东湾坳陷

Abstract:

Based on seismic data and displacement-distance scaling,this paper analyzes the formation of the JX transfer zone in the middle part of the Liaodongwan depression.  The oil-bearing JX structure is a large-scale strike-slip duplex structure where two segmented faults of the Liaozhong-No. 1 strike-slip fault overstep and interact each other.The rhombic faulted block between the two segmented and overstepped faults transferred their displacements,and the conservation of fault displacements formed the JX transfer zone which belongs to the type of oblique anticline.The JX transfer zone experienced four evolution stages,including the isolated faults,transfer zones initiation,complication and rupture.The integrated study on transfer zones has important significance to oil and gas exploration in the offshore part of the Bohai Bay basin.

Key words: transfer zone, displacement conservation, strike-slip fault, JX structure, Liaodongwan depression

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