| 微量元素在福建马坑铁矿崎濑泉形成条件识别中的应用 |
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| 引用本文： | 赖树钦.微量元素在福建马坑铁矿崎濑泉形成条件识别中的应用[J].中国岩溶,2008,27(4):347-351. |
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| 作者姓名： | 赖树钦 |
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| 作者单位： | 中国地质大学,武汉,环境学院,湖北,武汉,430074;福建省地质工程勘察院,福建,福州,350002 |
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| 摘 要： | 崎濑泉是福建马坑铁矿区附近流量最大的泉，与矿区的关系一直没有查清。本文通过对前人勘察资料研究和在不同部位采水样进行分析的基础上，运用聚类分析和指示岩溶水、碎屑岩地下水补给来源和径流过程的Sr／Ca与Rb／K值研究了福建马坑铁矿崎濑泉补给来源和径流途径。结果表明，取自崎濑泉泉口水样与及矿区水文钻孔的岩溶水水样相关系数达到0．98，而与取自矿区北部砂岩裂隙水的水样相关性则很差；灰岩水和砂岩水间的相关系数仅为0．26；崎濑泉水的Sr／Ca、Rb／K值与岩溶水的都比较相近，而砂岩裂隙水的Rb／K值则明显地较崎濑泉水与岩溶水的高，说明崎濑泉水的来源应当是深部的岩溶水，与其上部的砂岩裂隙水并无密切关系；崎濑泉的形成是大气降水在矿区东北部天山凹附近的灰岩裸露区渗入岩溶含水层并向西径流，至矿区中西部沿F10断层附近的岩溶强径流带径流至崎濑村，受陈坑-崎濑断层阻挡然后涌出地面，而并非前人所说的是先由大气降水补给砂岩裂隙含水层，然后再由砂岩裂隙含水层补给下部的岩溶含水层。
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| 关 键 词： | 崎濑泉 补给来源 微量元素聚类分析 指示微量元素分析 福建马坑铁矿 |
Identification to formation condition by means of trace elements-A case in Qilai spring, Makeng iron mine, Fujian province |
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| LAI Shu-qin.Identification to formation condition by means of trace elements-A case in Qilai spring, Makeng iron mine, Fujian province[J].Carsologica Sinica,2008,27(4):347-351. |
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| Authors: | LAI Shu-qin |
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| Institution: | LAI Shu-qin (1. School of Environmental Studies, China University of Geosciences, Wuhan, Hubei 430074 ,China 2. Geo-Engineering Investigation Institute of Fujian, Fuzhou, Fujian 350002,China) |
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| Abstract: | The discharge of Qilai spring is the largest nearby the Maken iron mine. However,the relationship between Qilai spring and mining area has not investigated thoroughly. Based on the studies of the preceding data and water sampling in different positions,the source of water and runoff path of Qilai spring are investigated. In the researche,Sr/Ca and Rb/K are used as indicators for the water source and runoff path of the karst water in clastic rocks area. The results show that the correlation coefficient is 0.98 between Qilai spring water and karst water from the hydrogeological borehole in the mining area,and there is a poor correlation between Qilai spring water and sandstone fissure water from the northern of the mine area. The correlation coefficient is 0.26 between karst water and sandstone fissure water. In additional,the values of Sr/Ca and Rb/K in Qilai spring water are close to the karst water,while Rb/K value of sandstone fissure water is higher than Qilai spring water and karst water obviously. It shows that the Qilai spring is recharged by deep zone karst water other than sandstone fissure water. The formation of the Qilai spring can be concluded as following:the rain water goes into the bare limestone aquifer near Tianshan'ao and then to the northeast of the mine area,and flows to the west. When it reaches the fault F10,it is directed by intensive runoff zone near F10 to Qilai village. Finally,it is restricted by Chenkeng-Qilai fault and ascends to the surface. |
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| Keywords: | Qilai spring water source trace element cluster analysis tracing element analysis Makeng iron mine Fujian province |
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