摘要
为了研究涞源盆地地下水的水质形成过程及其主要控制因素,在野外水文地质调查的基础上,对该区地下水的化学特征进行了分析,并利用水文地球化学软件PHREEQCC对地下水化学演化进行了反向模拟。结果表明:团圆向斜、东沟-大宁断层和牌坊-冯村断层等地质构造影响着地下水流场;方解石、白云石是决定研究区地下水化学演化的主要矿物;地下水中的主要化学成分及其化学演化与含水层岩性在空间上呈现一致性;人类活动可能造成了局部地下水中pH值、三氮、硫酸根和氯离子等指标的异常。
In order to better understand the evolution process and main controlling factors of local groundwater quality in the Laiyuan Basin,the chemical characteristics of groundwater were analyzed based on the field hydrogeologieal investigation, and inverse simulation was performed to address the chemical evolution of groundwater using the hydrochemical software PHREEQC. The results showed that groundwater flow field is controlled by the geological structures such as Tuanyuan Syn- cline, Donggou-Daning Fault, and Paifang-Fengeun Fault;calcite and dolomite are the main minerals involved in water-rock interactions; the main chemical constituents of groundwater and chemical evolution of groundwater are consistent with those of aqui- fer lithology in space; and the abnormality of pH and contents of nitrate, sulfate, and chloride are caused by human activities.
出处
《南水北调与水利科技》
CAS
CSCD
北大核心
2014年第5期141-146,共6页
South-to-North Water Transfers and Water Science & Technology
基金
中国地质调查局国土资源大调查项目"华北地方病严重区地下水勘查及供水安全示范"(1212011121149)
重要能源基地水文地质环境地质调查综合研究(G201123)
中国地质调查局环保公益性行业科研专项项目(201209053)
