| 广西叫弄英安岩风化剖面与地下水作用的证据 |
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| 引用本文： | 顾尚义,毛健全,张启厚.广西叫弄英安岩风化剖面与地下水作用的证据[J].贵州工业大学学报(自然科学版),2002,31(2):48-52. |
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| 作者姓名： | 顾尚义 毛健全 张启厚 |
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| 作者单位： | 贵州工业大学,资源与环境学院,贵州,贵阳,550003 |
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| 摘 要： | 利用薄片观察、X－射线粉晶衍射分析和化学分析研究了广西凭祥英安岩的化学风化作用，在风化剖面形成过程中由于地下水作用的叠加，使得风化部面的发育偏离了“正常的”演化趋势。异常高的K2O、Na2O与TiO2的比值对应于高岭石的伊利石化和自生钠长石的形成，样品中等厚胶结物的存在直接指示了地下水曾经存在的位置。
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| 关 键 词： | 风化剖面 英安岩 化学风化 地下水 |
| 文章编号： | 1009-0193(2002)02-0048-05 |
| 修稿时间： | 2001年9月20日 |
Interaction between Weathering Profile and Groundwater Evidenced by Dacite Weathering Profile of Jiaonong, Guangxi |
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| GU Shang yi,MAO Jian quan,ZHANG Qi hou.Interaction between Weathering Profile and Groundwater Evidenced by Dacite Weathering Profile of Jiaonong, Guangxi[J].Journal of Guizhou University of Technology(Natural Science Edition),2002,31(2):48-52. |
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| Authors: | GU Shang yi MAO Jian quan ZHANG Qi hou |
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| Abstract: | The chemical weathering of slightly altered dacite of Jiaonong, Guangxi is studied through optical observation of thin sections, X ray diffraction analyses and chemical analyses. The weathering trend of the dacite is deviated from a normal one because of the overprinting of interaction between groundwater and weathering profile. The abnormally high contents of K 2O and Na 2O relative TiO 2 in some part of profile are in response to illitization of kaolinite and formation of authigenic albite. The isopachous cement in samples is the direct sign of the location of groundwater. |
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| Keywords: | dacite chemical weathering groundwater Jiaonong |
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