| 河谷斜坡带泥灰质岩石区地貌对岩溶的控制机理--以三峡地区为例 |
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| 引用本文： | 张加桂.河谷斜坡带泥灰质岩石区地貌对岩溶的控制机理--以三峡地区为例[J].吉林大学学报(地球科学版),2004,34(3):415-419. |
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| 作者姓名： | 张加桂 |
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| 作者单位： | 中国地质科学院,地质力学研究所,北京,100081;中国地质环境监测院,北京,100081 |
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| 基金项目： | 三峡移民开发局资助项目 |
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| 摘 要： | 研究泥灰质岩石区地貌对岩溶的控制机理是弄清岩溶过程的出发点.三峡河谷斜坡带泥灰质岩石区地貌对岩溶具有明显的控制作用.纵向上在陡坡地带和地形由陡变缓的转折部位岩溶作用强烈,纵比降小的山梁部位岩溶作用较弱;横向上冲沟部位岩溶作用最强,坡肩部位岩溶作用较弱,山梁部位岩溶作用又增强.哪里的岩溶通道发育、水流汇集量大,哪里的岩溶就强烈.在三峡移民迁建中,应注意不同的地貌部位具有不同的地基变形破坏型式.
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| 关 键 词： | 岩溶 地貌 泥灰质岩石 河谷斜坡带 地质灾害 三峡地区 河谷斜坡带 泥灰质岩石 地貌 岩溶作用 控制机理 三峡地区 region Three Gorges case study slope valley area limestone control landform 破坏型式 地基变形 移民迁建 流汇集 发育 |
| 文章编号： | 1671-5888(2004)03-0415-05 |
| 修稿时间： | 2003年4月11日 |
Mechanism of landform control over karstification in mud limestone area along valley slope zone--A case study from Three Gorges region |
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| ZHANG Jia-gui.Mechanism of landform control over karstification in mud limestone area along valley slope zone--A case study from Three Gorges region[J].Journal of Jilin Unviersity:Earth Science Edition,2004,34(3):415-419. |
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| Authors: | ZHANG Jia-gui |
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| Institution: | ZHANG Jia-gui~ |
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| Abstract: | The research on the mechanism of the landform control over karstification in mud limestone area was the starting point of clarification of karst process. There existed distinctive landform control over karstification in mud limestone area along valley slope zone in Three Gorges region. In detail, there existed strong karstification along steep slope sector and turn point of steep-to-flat and slight karstification along flat upland sector on longitudinal section; there existed strong karstification around gully, slight karstification at the shoulder of slope and slightly strong karstification along flat upland on transverse section. Where abound with water path and water there existed strong karstification. So we should pay attention to different forms of deformation and destroy of construction foundation in different parts of the landform in population resettlement project in Three Gorges region. |
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| Keywords: | karst landform mud limestone valley slope zone geo-hazard Three Gorges region |
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