Numerical simulation of the evolutionary process of Danxia landforms
Numerical simulation of the evolutionary process of Danxia landforms
复制标题
丹霞地貌演化过程的数值模拟
DOI：
10.1080/02723646.2015.1033047
复制
发表时间：
2015-04
影响因子：
1.6
通讯作者：
Xiangtao Fan
中科院分区：
文献类型：
--
作者：
Zhenzhen Yan;Xiaoping Du;Xiangtao Fan
丹霞地貌是指发育在红色陆相碎屑岩中的一种地貌类型，其地层一般呈近水平状。岩性、垂直节理、构造历史和降雨在丹霞地貌的形成中起着重要作用，导致定量理解其演化的难度和复杂性增加。综合上述因素，本研究首次尝试用数值模拟方法研究丹霞地貌的演化过程。在这项研究中使用的参数，从早期的研究丹霞山在中国东南部。定量地描述了丹霞地貌形成的完整的动力学过程，这是野外观察所不能看到的。这一过程是构造与河流侵蚀相互作用的结果，具有丹霞地貌不同演化阶段的典型特征。研究结果还表明，裂隙和节理的特征对演化过程具有重要的制约作用。通过对前期概念性结果和模拟结果的对比分析，我们认为本研究所用的模型能够合理地代表丹霞地貌的典型物理形成过程。虽然该模型是强大的，因此可能不精确，我们的结果仍然揭示了有趣的动态行为塑造丹霞地貌。
Danxia landforms are defined as a landscape type that developed in red terrestrial clastic rocks generally with near-horizontal strata. Lithology, vertical joint sets, tectonic history, and rainfall play important roles in shaping Danxia landforms, leading to increased difficulty and complexity in quantitatively understanding their evolution. Integrating the factors mentioned above, this study represents the first attempt to investigate the evolutionary process of Danxia landforms using a numerical simulation. Parameters used in this study were employed from earlier studies on Danxia Mountain in southeastern China. The results quantitatively present a complete dynamic course shaping Danxia landforms that could not be seen from field observation alone. The process arises from interactions between tectonics and fluvial erosion and displays typical characteristics of Danxia landforms in different evolutionary stages. The results also show that the features of fractures and joints have significant constraints on the evolutionary process. Through comparative analysis of the earlier conceptual results and our simulation, we conclude that the model used in this study can reasonably represent the typical, physical formation process of Danxia landforms. Although the model is robust and thus might not be precise, our results still reveal the interesting dynamic behavior shaping Danxia landforms.
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影响因子：
4
作者：
Ji-Sung Kim;Chan Joo Lee;W. Kim;Yong-Jeon Kim
通讯作者：
Ji-Sung Kim;Chan Joo Lee;W. Kim;Yong-Jeon Kim
DOI：
--
发表时间：
2014
期刊：
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影响因子：
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通讯作者：
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DOI：
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期刊：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
G. Tucker;Rudy Slingerland
通讯作者：
G. Tucker;Rudy Slingerland