东濮凹陷古近纪断裂活动的幕式特征及控盆作用

唐民安; 王华

东濮凹陷古近纪断裂活动的幕式特征及控盆作用

唐民安¹,
王华²

l 华北水利水电学院, 郑州 450011;
2 中国地质大学, 武汉 450074

详细信息

作者简介:
唐民安(1964-),男,博士,高级工程师,从事油气勘探与开发及教学和科研工作,E-mail:tma0829@sina.com

中图分类号: P736.1
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出版历程
- 收稿日期: 2008-01-11
- 修回日期: 2008-03-14

EPISODIC CHARACTERISTICS OF FAULTS AND THEIR EFFECTS ON SEDIMENTARY AND STRUCTURAL EVOLUTION DURING PALEOGENE: A CASE STUDY OF DONGPU DEPRESSION

TANG Min-an¹,
WANG Hua²

1 North China University of Water Conservancy and Electric Power, Zhengzhou 450011, China;
2 China University of Geosciences, Wuhan 430074, China

摘要

摘要: 通过对东濮凹陷古近纪的沉降史分析,揭示了该区古近纪断裂活动的幕式特征,探讨了断裂活动的幕式特征对盆地沉积、构造演化的控制作用。指出古近纪的断裂活动具有明显的五幕式特征,即初始活动期(Es₄)、快速活动期(Es₃⁴)、衰减期(Es₃³)、再活化期(Es₃²-Es₂²)及收缩期(Es₂¹-Ed);断裂活动的幕式特征直接控制着盆地古近系的三级层序界面和沉积演化特征;断裂活动的五幕式特征直接控制着盆地构造演化阶段,相应形成初始断陷期(Ek-Es₄)、快速断陷期(Es₃⁴)、衰减期(Es₃³)、再活化期(Es₃²-Es₂²)和收缩期(Es₂¹-Ed)。
- 断裂 /
- 幕式活动 /
- 盆地演化 /
- 古近纪 /
- 东濮凹陷
Abstract: The episodic characteristics of fault activity and their effects on the sedimentary and structural evolution during Paleogene are revealed based on analysis of sedimentation history in the Dongpu Depression. It is suggested that (1)the fault activity during Paleogene can be divided into five episodes, i.e. early activity phase (Es₄), rapid activity phase (Es₃⁴), slow activity phase (Es₃³), reactivation phase (Es₃²-Es₂²),and senescent phase (Es₂¹-Ed); (2)The episodes of the fault activity directly controlled Order-Ⅲ sequence surface and sedimentary evolution; (3)The episodes of the fault activity directly controlled the structural evolution in the basin, forming early activity phase (Es₄), rapid activity phase (Es₃⁴), slow activity phase (Es₃³), reactivation phase (Es₃²-Es₂²) and senescent phase (Es₂¹-Ed).
- fault /
- episodic activity /
- basin evolvement /
- Paleogene /
- Dongpu Depression