中国地质调查2026，Vol.13Issue(2)：106-113,8.DOI:10.19388/j.zgdzdc.2026.143
昆仑河水化学特征及物源分析
Hydrochemical characteristics and material sources of Kunlun River
摘要
Abstract
River water serves as a key carrier for salt deposition in lakes,and its research could reveal the ore-forming material source and distribution rules.The river's hydrochemical characteristics,sources of solute compo-nents,and their controlling factors were investigated based on 103 samples collected at Nachitai Hydrological Sta-tion.The results showed that the pH value of the Kunlun River ranged from 7.8 to 8.1,and the annual average TDS was 411 mg/L,indicating weak alkaline water of moderate mineralization.The major ions in the river were Na+,Ca2+,Cl-,and HCO3,followed by Mg2+,K+,and SO42-.The ions Na+,Cl-,and SO42-were primari-ly derived from the dissolution of evaporates,and Mg2+mainly originated from the weathering of silicate rocks.The Ca2+was derived from a mixture of carbonate and silicate rock weathering,and HCO3-mainly came from at-mospheric carbon dioxide dissolution.The research findings have significant implications for tracing the formation and distribution of different types of evaporate mineral resources in Qaidam Basin.关键词
柴达木盆地/昆仑河/水化学成分/盐类物质来源Key words
Qaidam Basin/Kunlun River/water chemistry/salt sources分类
天文与地球科学引用本文复制引用
李明慧,李兆强,宋香锁,李皎,刘凤臣,方小敏..昆仑河水化学特征及物源分析[J].中国地质调查,2026,13(2):106-113,8.基金项目
国家自然科学基金"青藏高原中部纳木错岩芯记录的一百万年以来水文与气候变化(编号:42330514)"、西藏自治区基地与人才项目"纳木错流域监测网络支撑的高寒湖泊多圈层耦合过程数值模拟平台建设与应用示范(编号:XZ202502JD0015)"及揭榜挂帅项目"藏西北湖泊区水盐动态演化规律及应对策略(编号:XZ202403ZY0028)"联合资助. （编号:42330514）
