| 不同期伸展断陷的叠合类型 |
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| 引用本文： | 陈发景,汪新文,陈昭年.不同期伸展断陷的叠合类型[J].现代地质,2011,25(5). |
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| 作者姓名： | 陈发景 汪新文 陈昭年 |
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| 作者单位： | 1. 中国地质大学能源学院,北京,100083
2. 中国地质大学地球科学与资源学院,北京,100083 |
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| 摘 要： | 讨论3个问题:(1)不同期伸展断陷的叠合类型。按照断陷的叠合方式划分为孤立型、继承型和相干型。其中相干型根据不同期断陷的相干关系进一步划分为3个亚类,即同向相干型、对向相干型和相交相干型。(2)各相干型叠合的控制因素不同。同向和对向相干型叠合与先存基底断裂系统同向和对向排列以及断裂伸展活动时横向和纵向迁移有关;而相交相干型叠合与伸展方向的旋转有关。(3)油气分布与不同期断陷叠合类型有密切关系。一些类型,如继承型和对向相干型叠合有利于油气生成和保存,而同向和相交相干型叠合类型,因为早期断陷在晚期阶段部分上升并受到改造,一般起破坏作用。
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| 关 键 词： | 伸展断陷的叠合类型 继承型叠合类型 相干型叠合类型 |
Superimposed Types of Extensional Fault Depressions at Different Epochs |
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| CHEN Fa-jing,WANG Xin-wen,CHEN Zhao-nian.Superimposed Types of Extensional Fault Depressions at Different Epochs[J].Geoscience——Journal of Graduate School,China University of Geosciences,2011,25(5). |
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| Authors: | CHEN Fa-jing WANG Xin-wen CHEN Zhao-nian |
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| Institution: | CHEN Fa-jing1,WANG Xin-wen2,CHEN Zhao-nian1 ( 1.School of Energy Resources,China University of Geosciences,Beijing 100083,China,2.School of Earth Sciences and Resources,China) |
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| Abstract: | Three problems are discussed in this paper.(1) Superimposed types of extensional fault depressions at different epochs.According to modes of superimposition,the types of superimposed fault depression can be classified as follows: isolate,inherited and interference types.Based on interference relationship between early and late fault depressions,the interference types can be subdivided further into three subtypes: synthetic,convergent and intersecting interference.(2) Formation mechanism of these interferenc... |
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| Keywords: | superimposed type of fault depression type of inherited superimposition type of interference superimposition |
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