摘要
为查明胶南隆起区日照段地下水水化学特征及其成因,对研究区域地下水资源开发利用和生态环境保护提供科学依据。本次研究在综合分析胶南隆起区日照段水文地质条件的基础上,系统采集了研究区地下水样品71件,综合运用描述性统计、Piper三线图、Gibbs图、相关性分析、离子比值端元图等方法,系统分析了地下水水化学组分空间分布、水化学特征及成因。结果表明,胶南隆起区日照段地下水整体呈弱碱性,阴离子以HCO_(3)^(-)为主,阳离子以Ca^(2+)、Na^(+)为主,松散岩类孔隙水中离子含量变化相对稳定,基岩裂隙水Ca^(2+)、HCO_(3)^(-)含量较为稳定,其他阴阳离子在地下水中的含量变化较大;地下水化学类型复杂多样,主要有HCO_(3)、HCO_(3)·SO_(4)、HCO_(3)·Cl型水,其分布从补给区到排泄区呈明显的分带性。区内松散岩类孔隙水和基岩裂隙水主要受水岩相互作用控制,离子来源主要受是硅酸盐岩溶解的作用。
It is of great significance to study hydrochemical characteristics and origin of groundwater in Rizhao section in Jiaonan uplift for the development and protection of groundwater resources.Based on comprehensive analysis of hydrogeological conditions in Rizhao section in Jiaonan uplift area,71 groups of groundwater samples from the research area have been collected systematically.By using descriptive statistics,Piper plots,Gibbs plots,correlation analysis and ion ratio method,spatial distribution,hydrochemical characteristics and origin of groundwater chemistry have been analyzed.It is showed that groundwater in Rizhao section in Jiaonan uplift area is generally weak alkaline,with HCO_(3)^(-)as main anion,and Ca^(2+)and Na^(+)as main cations.The ion content in loose rock pore water is relatively stable,while Ca^(2+)and HCO_(3)^(-)content in bedrock fissure water are relatively stable.The content of other anions and cations in groundwater varies greatly.The groundwater chemical types are complex and diverse,including HCO_(3),HCO_(3)·SO_(4),and HCO_(3)·Cl type water.Their distribution shows a distinct zonation from the recharge area to the discharge area.The pore water and bedrock fissure water within the area are mainly controlled by water rock interactions,and the ion source is mainly the dissolution of silicate rocks.
作者
邢洪连
秦福锋
郭本力
袁杰
魏同政
康日斐
朱传熙
杨鹏
李小东
XING Honglian;QIN Fufeng;GUO Benli;YUAN Jie;WEI Tongzheng;KANG Rifei;ZHU Chuanxi;YANG Peng;LI Xiaodong(No.8 Geological Team of Shandong Provincial Bureau of Geology and Mineral Resources(No.8 Institute of Geology and Mineral Resources Exploration of Shandong Province),Rizhao Key Laboratory of Land Quality Assessment and Pollution Remediation,Shandong Rizhao 276826,China;No.1 Exploration Brigade of Shandong Coalfield Geologic Bureau,Shandong Qingdao 266555,China)
出处
《山东国土资源》
2025年第8期21-28,共8页
Shandong Land and Resources
关键词
地下水
水化学特征
成因分析
日照段
胶南隆起区
Groundwater
hydrochemical characteristics
origin
Rizhao section
Jiaonan uplift area
