论坛与综述

断层的生长连接研究进展

  • 赖锦 ,
  • 王贵文
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  • 同济大学海洋地质国家重点实验室,上海200092
阙晓铭(1988-),男,同济大学在读硕士研究生,研究方向为大陆边缘构造与盆地分析。 地址:(200092)上海市四平路 1239 号同济大学海洋楼。 E-mail:xmque.geo@gmail.com

网络出版日期: 2013-02-20

Research progress on the propagation and linkage of faults

  • LAI Jin ,
  • WANGGuiwen
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  • State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China

Online published: 2013-02-20

摘要

生长断层往往作为沉积盆地的边界断层控制和影响着盆地的演化。 国外学者通过对野外断层位移量和断层长度的观测与分析,指出了断层的生长表现为断层位移量和断层长度的增加;断层生长和连接有 2 种方式;单条断层的生长表现为断层最大位移量与断层长度之间呈比例关系的常规生长模型,以及先进行断层长度的生长再进行断层位移量生长的补充生长模型。 断层生长后期在断层端的相互作用下发生断层的连接是形成大型断层的重要方式。 结合国内外研究现状,对断层生长研究的主要模型进行综述,并在此基础上讨论了断层生长连接的特点。

本文引用格式

赖锦 , 王贵文 . 断层的生长连接研究进展[J]. 岩性油气藏, 2013 , 25(1) : 11 -15 . DOI: 10.3969/j.issn.1673-8926.2013.01.003

Abstract

Growth faults normally act as the boundary faults along basins, and control the evolution of basins. The characters of fault growth, revealed by articles abroad, are based on the increase of displacement and length. Quantitative constraints from ancient fault systems show mainly two models. Conventional growth models suggest that faults become larger due to systematic increase in both maximum displacement and length, which predict a systematic power-law relationship between maximum displacement Dand maximum trace length Lof the form D= cLn.Others suggest alternative growth models, in which faults are rapidly lengthening at an initial short stage, followed by a subsequent longer phase by increasing cumulative displacement at roughly constant length. It is a significant process in controlling the size and shape of many sedimentary basins in extensional settings that the evolution and linkage of fault segments to form continuous fault zones. This paper discussed these fault growth models and the characters of fault linkage by summarizing the research findings.

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