| 九寨沟早期钙华体的岩溶作用与湖瀑景观的形成 |
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| 引用本文： | 周绪纶,刘民生.九寨沟早期钙华体的岩溶作用与湖瀑景观的形成[J].四川地质学报,2012,32(3):333-338. |
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| 作者姓名： | 周绪纶 刘民生 |
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| 作者单位： | 1. 四川省地勘局成都水文地质工程地质队,成都,610072
2. 四川省地勘局九一五地质队,四川眉山,620000 |
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| 摘 要： | 九寨沟与四川西北部碳酸盐岩地区早期钙华体在52～3万年前的冰缘环境中形成.3万年后,区内气温在振荡中升高,使九寨冰缘退缩,岩溶水酸化并具溶蚀性,在早期钙华体上形成了湖瀑等各种溶蚀形态,渗流溶蚀和混合溶蚀是壶穴湖、梯湖和溶蚀湖形成的主要机制,溶蚀侵蚀伴有季节性钙华沉淀形成着叠水和瀑布.保护湖瀑景观的原则是抑制钙华的溶蚀强度,运用岩溶水的瀑堤效应促进CaCO3沉淀,增强瀑堤的固结,减少渗漏.
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| 关 键 词： | 早期钙华体 岩溶作用 湖瀑景观 九寨沟 |
Travertine Dissolution and Formation of Lake Waterfall Landscape in the Jiuzhai Valley |
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| ZHOU Xu-lun
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LIU Min-sheng.Travertine Dissolution and Formation of Lake Waterfall Landscape in the Jiuzhai Valley[J].Acta Geologica Sichuan,2012,32(3):333-338. |
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| Authors: | ZHOU Xu-lun LIU Min-sheng |
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| Institution: | 1-Chengdu Hydrogeological and Engineering Geological Party, SBGEEMR, Chengdu 610072; 2-No. 915 Hydrogeological and Engineering Geological Team, BGEEMRSE Meishan, Sichuan 620010) |
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| Abstract: | Travertine in the＇Jiuzhai Valley was formedin a periglacial environment 0.52-0.03 Ma ago. Then, various dissolution landforms such as pot hole, terrace lake, dissolution lake and lake waterfall were formed on the early travertine by periglacial retreat and water acidization resulting from temperature going up. The key to the pr_o_tection of the !ake waterfall landscape is to have control of dissolution of travertine. |
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| Keywords: | early travertine karstification lake waterfall landscape Jiuzhai Valley |
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