利用断层位移模式确定断层发育史的一种方法

单业华; 李志安; 林舸

doi:10.11781/sysydz200301093

利用断层位移模式确定断层发育史的一种方法

doi: 10.11781/sysydz200301093

1.
青岛海洋大学, 海洋地质系, 山东, 青岛, 266003
2. 中国科学院, 长沙大地构造研究所, 湖南, 长沙, 410013

基金项目: 中国科学院资源环境领域知识创新工程重要方向项目(KZCX2-113);山东省自然科学基金(Y98E08078).

详细信息

作者简介:
单业华(1968-),男(汉族),福建三明人,博士、副教授,主要从事构造地质方面的研究.

中图分类号: TE121.2
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- 被引次数: 0
出版历程
- 收稿日期: 2001-10-30
- 修回日期: 2002-11-27
- 刊出日期: 2003-01-25

A METHOD FOR DETERMINING THE HISTORY OF FAULTS USING THE MODEL OF FAULT DISPLACEMENTS

1.
Department of Marine Geology, Ocean University of Qingdao, Shandong 266003, China
2. Changsha Institute of Geotectonics, Academia Sinica, Changsha, Hunan 410003, China

摘要

摘要: 断层位移是断层多次滑动的累积产物,包含着断层成核、扩展和连接的信息.该文提出利用断层位移模式从观测的断层位移数据中分析断层发育史.以大港油田滩海区张东断层为例,计算结果表明,各沉积期的断层位移量自上而下出现小—大—小—次大的变化趋势,在中新统馆陶组沉积期达到最小,代表着构造相对宁静的转折期;新第三纪的断层扩展参数接近1,明显要比老第三纪的小,表明从所处盆地老第三纪强烈的断陷阶段到新第三纪以来超大范围的坳陷阶段,断层活动强度明显减弱;渐新统东营组沉积期是造成张东断层现今累积位移量侧向变化的主要时期,断层位移量达到最大,而同期的位移量侧向变化也最大.
- 断层发育史 /
- 断层位移模式 /
- 张东断层 /
- 大港油田
Abstract: There are extensive information on the nuclei,propagation and linkage of faults recorded by the displacements of faults.By utilizing the model of fault displacements,a method to study the history of faults based on observed data of fault displacement was proposed.Taking the Zhangdong normal fault in the inshore of the Dagang Oil Field as an example,the results showed that the restored fault displacement in different sedimentary stages tended to increase,decrease and then increase less with time.It reached the minimum of displacement during sedimentation of the Oligocene Dongying formation,and representd the relatively quiet epoch in regional extension.The parameter of fault propagation is larger in the Eocene than in the Neogene,the latter ca.1.0.This indicated the tendency of decrease in the fault activity with time,corresponding with the evolution of the basin which experienced intense riftsubsidence in the Eocene to depression in the Neogene.It was during the deposition of the Oligocene Dognying formation that the fault activity had generated both the maximum displacement and the maximum lateral variation in displacement.
- history of fault /
- models of fault displacement /
- Zhangdong fault /
- Dagang oil field

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参考文献(8)

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