| 鄂尔多斯盆地周边地区野外溶蚀试验结果讨论 |
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| 引用本文： | 梁永平,王维泰,段光武.鄂尔多斯盆地周边地区野外溶蚀试验结果讨论[J].中国岩溶,2007,26(4):315-320. |
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| 作者姓名： | 梁永平 王维泰 段光武 |
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| 作者单位： | 1. 中国地质科学院岩溶地质研究所,广西,桂林,541004
2. 铁道第二勘察设计院地质勘察,分院,四川,成都,610031 |
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| 摘 要： | 2003到2004年,在国土资源部地质调查项目"鄂尔多斯盆地地下水勘查"工作中,作者在鄂尔多斯盆地周边地区建立了8个野外溶蚀试验站,采用不同岩石的600多枚试片开展了为期1年的野外溶蚀试验观测。通过试验并结合前人的野外溶蚀试验成果分析,得出了如下几个重要的结论:(1)试验区灰岩较白云岩的溶蚀量大20%以上;(2)与我国南方的试验结果相反,即北方土下碳酸盐岩样品溶蚀量远远小于地上样品的溶蚀量;(3)从华北到西北存在一个碳酸盐岩样品由溶蚀变为沉淀的地带;同理,从我国北方碳酸盐岩样品土下溶蚀量小于地上溶蚀量到南方土下溶蚀量大于地上溶蚀量区域变化过程中,又存在土下与地上溶蚀量接近的地带,这两个地带是控制我国现代岩溶作用机制的重要分界线,对岩溶地貌的发育与演化研究具有重要意义。
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| 关 键 词： | 溶蚀试验 对比研究 鄂尔多斯盆地 |
| 文章编号： | 1001-4810（2007）04-0315-06 |
| 收稿时间： | 2007-06-08 |
| 修稿时间： | 2007年6月8日 |
Discussion on the result of field corrosion test around Erdos Basin |
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| LIANG Yong-ping,WANG Wei-tai and DUAN Guang-wu.Discussion on the result of field corrosion test around Erdos Basin[J].Carsologica Sinica,2007,26(4):315-320. |
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| Authors: | LIANG Yong-ping WANG Wei-tai and DUAN Guang-wu |
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| Institution: | 1.Institute of Karst Geology, CAGS 2.Railway Survey and Design Institute 2nd Geological Survey Branch |
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| Abstract: | Eight field corrosion test stations were established around the Erdos Basin from 2003 to 2004,combined with the geological investigation item "The Ground Water Survey in Erdos Basin".The corrosion test was last one year with more than 600 pieces of test specimens made from rocks that are different in lithology.According to the result from the test and previous data,it is concluded that:(1) The corrosion quantity of limestone is more than that of dolomite by 20%.(2) In opposition to the result of South China,the corrosion quantity of specimen under soil is far less than the one on the surface in North China.(3) There is a zone where the corrosion quantity of carbonate rock is equal to the precipitation quantity,and there is a zone where the corrosion quantity of carbonate rock under soil is equal to the one on the surface from South China to North China.The two zones are the important boundary which controls the mechanism of modern karst process. |
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| Keywords: | corrosion test comparison analysis Erdos Basin |
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