| 荥巩矿区岩溶地下水系统的水文地球化学特征及其指示意义 |
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| 引用本文： | 张群利,郭会荣,吴孔军,韩国童.荥巩矿区岩溶地下水系统的水文地球化学特征及其指示意义[J].水文地质工程地质,2011,38(2):1-7. |
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| 作者姓名： | 张群利 郭会荣 吴孔军 韩国童 |
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| 作者单位： | 中国地质大学环境学院;河南省地质矿产勘查开发局测绘队; |
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| 基金项目： | 国家自然科学基金项目(40772155); 863计划(2007AA06Z337) |
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| 摘 要： | 本文在分析荥巩矿区水文地质条件的基础上,重点对岩溶地下水系统的水化学特征进行分析。结果表明:岩溶水水化学类型自补给区到排泄区,从单一的HCO3型向复杂的HCO3.SO4型和SO4.HCO3型转变,TDS和Sr2+/Ca2+值均增加。地下水氢氧稳定同位素分析结果表明,本区岩溶地下水主要接受大气降水的入渗补给。根据同位素计算的补给高程推断岩溶水补给范围和划分的流动系统与地面调查结果及水化学研究成果一致:矿区处于区域流动系统排泄带,中寒武统张夏组—中奥陶统灰岩在矿区南部出露的范围接受降水补给,以侧向径流的方式进入矿区充水含水层。
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| 关 键 词： | 水化学特征 氢氧稳定同位素 岩溶水流动系统 荥巩矿区 |
Characteristics and indication of hydrogeochemisty for the karst groundwater system in the Xinggong coal field |
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| ZHANG Qun-li,GUO Hui-rong,WU Kong-jun,HAN Guo-tong.Characteristics and indication of hydrogeochemisty for the karst groundwater system in the Xinggong coal field[J].Hydrogeology and Engineering Geology,2011,38(2):1-7. |
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| Authors: | ZHANG Qun-li GUO Hui-rong WU Kong-jun HAN Guo-tong |
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| Institution: | 1.School of Environmental Studies,China University of Geosciences,Wuhan 430074,China;2.Survey Team of Henan Provincial Bureau of Geo-exploration and Mineral Development,Zhengzhou 450006,China |
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| Abstract: | Based on a regional hydrogeological survey,the hydrogeochemical characteristics of a karst groundwater system in the Xinggong coal field were analyzed in this paper.The results show that from recharge zones to discharge zones,the hydrochemical type of groundwater changes from HCO3-Ca(Mg) to HCO3.SO4-Ca(Mg) or SO4.HCO3-Ca(Mg) type,TDS and the ratio of Sr2 + to Ca2 + in groundwater increase.Isotopic characteristics indicate that groundwater is mainly recharged from modern precipitation.The recharge elevation ... |
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| Keywords: | hydrochemical characteristics hydrogen and oxygen stable isotopes karst groundwater system Xinggong coal field |
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