| 岩性差异对岷江龙门山河段剖面样式的影响 |
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| 引用本文： | 陈浩,李勇.岩性差异对岷江龙门山河段剖面样式的影响[J].四川地质学报,2014(2):187-189. |
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| 作者姓名： | 陈浩 李勇 |
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| 作者单位： | [1]绵阳师范学院资源环境工程学院,四川绵阳621006 [2]成都理工大学油气藏地质及开发工程国家重点实验室,四川成都610059 |
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| 基金项目： | 国家自然科学基金资助项目（40372084,40972083,41172162） |
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| 摘 要： | 在岩性构成复杂的岷江龙门山河段,河谷两侧龙门山山顶面主要坡折点与岩性界线基本对应,但河床剖面上没有表现出明显的与岩石抗蚀界限相对应的阶梯状变化。研究结果表明,龙门山地区线状剥蚀速率是面状剥蚀速率的2.1倍,河床表面因岩性差异形成的原始地貌陡坎被水流剥蚀殆尽,从而导致该区域河床剖面样式与山顶面剖面样式存在显著差异。
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| 关 键 词： | 岩性差异 剖面样式 岷江 龙门山 |
Influence of Lithologic Difference on River Bed and Valley Section Styles of the Minjiang Valley in the Longmen Mountains |
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| CHEN Hao,LI Yong.Influence of Lithologic Difference on River Bed and Valley Section Styles of the Minjiang Valley in the Longmen Mountains[J].Acta Geologica Sichuan,2014(2):187-189. |
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| Authors: | CHEN Hao LI Yong |
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| Institution: | 1-Institute of and Resources and Environmental Engineering, Mianyang Teachers College, Mianyang, Sichuan 621006; 2- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059) |
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| Abstract: | The Minjiang valley in the Longmen Mountains is composed of complicated lithologic units. Slope break points on either bank of the valley corresponds with lithologic boundary, but there is no appearance of correspondence of erosion resistance boundary of rocks with slope terrace change in river bed section. The study indicates that the linear denudation rate in the Longmen Mountains is 2.1 times as much the sheet denudation rate which results in obvious difference between river bed section style and valley section style. |
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| Keywords: | lithologic difference section style Minjiang River Longmen Mountains |
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