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首页> 外文期刊>Journal of Asian earth sciences >Fault zone evolution during Cenozoic tectonic inversion in SE Korea
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Fault zone evolution during Cenozoic tectonic inversion in SE Korea

机译：韩国东南部新生代构造反转过程中的断裂带演化

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摘要

Geometric and kinematic analyses were conducted on a fault zone at a construction site in SE Korea to understand its temporal and spatial evolution. This area is tectonically characterized by the existence of reversely reactivated faults associated with Cenozoic tectonic inversion. Structural elements within fault core such as slip surfaces and gouge zones are examined in a great detail based on grid-mapping analysis in a nearly three-dimension, combining the vertical sections with various directions. The highly deformed zone is composed of multiple gouge zones and geometrically characterized by anastomosing patterns. Kinematic indicators and their cross-cutting relationships indicate that the fault zone evolved by multiple slip events including reverse reactivation of a pre-existing normal fault zone. This implies that tectonic inversion is one of the most important factors controlling the complexity of the architecture of the studied fault zone, and it is important to understand the evolutional history of mature (or evolved) faults. Detailed analysis of geometric and kinematic characteristics of mature fault zones can provide very useful information to various research fields, such as fault zone evolution, interpretation of local tectonics, geotechnical stability, and fault zone modeling associated with fluid flow.
机译：在韩国东南部某建筑工地的断层带进行了几何和运动学分析，以了解其时空演变。该区域的构造特征是与新生代构造反转有关的反向再激活断层的存在。基于网格映射分析，将垂直方向和各个方向组合在一起，对断层核心内的结构元素（如滑动面和切屑区）进行了详细的研究，几乎是三维的。高变形区由多个切屑区组成，并在几何上具有吻合图案特征。运动学指标及其横切关系表明，断裂带是由多个滑动事件演化而来的，包括先前已存在的正常断裂带的反向激活。这意味着构造反转是控制所研究断层构造复杂性的最重要因素之一，了解成熟（或演化）断层的演化历史很重要。对成熟断层带的几何和运动学特征的详细分析可以为各个研究领域提供非常有用的信息，例如断层带的演化，局部构造的解释，岩土工程稳定性以及与流体流动相关的断层带建模。

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  • 来源
    《Journal of Asian earth sciences》 |2015年第2期|167-177|共11页
  • 作者

    Jin-Hyuck Choi; Seok-Jun Yang; Seung-Rok Han; Young-Seog Kim;

  • 作者单位

    Department of Earth & Environmental Sciences, Pukyong National University, Busan 608-737, Republic of Korea;

    Mineral Resources Research Department, Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, Republic of Korea;

    Korea National Oil Corporation, Gyeonggi-do 431-711, Republic of Korea;

    Department of Earth & Environmental Sciences, Pukyong National University, Busan 608-737, Republic of Korea;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Fault zone evolution; Mature fault; Tectonic inversion; Reverse reactivation;

    机译：断层带演化;成熟的错误;构造反转反向重新激活;

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