舞阳河中下游岩溶流域水化学特征及源解析--基于1∶5万新晃幅水文地质调查  

Hydrochemical Characteristics and Source Analysis of the Karst Basin in the Middle and Lower Reaches of Wuyang River--Based on the 1 ∶ 50 000 Xinhuang Sheet Hydrogeological Survey

作　　者：樊善兴 陆雄轩 FAN Shanxing(104 Geological Brigade,Bureau of Geology and Mineral Exploration and Development Guizhou Province,Duyun 558000,China)

机构地区：[1]贵州省地质矿产勘查开发局一〇四地质大队,贵州都匀558000 [2]不详

出　　处：《中国资源综合利用》2023年第1期49-52,共4页China Resources Comprehensive Utilization

基　　金：贵州省1∶5万水文地质图编图(黔国土资地勘函[2015]519号);贵州省地矿局地质科研一般科学研究项目(黔地矿科合[2019]8号、[2020]5号)。

摘　　要：以1∶5万新晃幅水文地质调查结果为基础,本文结合水化学分析方法,对舞阳河中下游岩溶流域地下水化学特征及离子来源进行分析。结果表明,研究区受地形影响,地下水矿化度较低,矿化度主要集中在200~400 mg/L,均值为285.6 mg/L。地下水化学类型以HCO3-Ca·Mg为主,地下水化学特征主要受到水岩作用影响,地下水化学组分主要受以白云石矿物风化占主导的碳酸盐岩化学风化作用控制。Based on the 1 ∶ 50 000 Xinhuang sheet hydrogeological survey results, this paper analyzes the chemical characteristics and ion sources of groundwater in the karst basin of the middle and lower reaches of Wuyang River by combining the hydrochemical analysis method. The results show that the salinity of groundwater in the study area is relatively low due to the influence of topography, and the salinity is mainly concentrated in 200 ~ 400 mg/L, with an average of 285.6 mg/L. The chemical type of groundwater is mainly HCO3-Ca·Mg, and the chemical characteristics of groundwater are mainly affected by water-rock interaction, and the chemical composition of groundwater is mainly controlled by the chemical weathering of carbonate rocks dominated by dolomite mineral weathering.

关 键 词：岩溶流域 水化学特征 源解析 新晃幅 

分 类 号：P641[天文地球—地质矿产勘探]