海洋地质前沿2024，Vol.40Issue(3)：64-74,11.DOI:10.16028/j.1009-2722.2023.251
山东北部泥质海岸带白浪河地区地下水水化学演化过程
Hydrochemical evolution of groundwater in the Bailang River area of the muddy coastal zone,northern Shandong,China
摘要
Abstract
The coastal area of Laizhou Bay is one of the typical regions affected by sea(saline)water intrusion in China,and the intrusion has resulted in the formation of a complex groundwater system under the influence of multiple transgression and regression events.The hydrochemical characteristics and evolution of the groundwater system in the Bailang River basin,a tributary of the Laizhou Bay,was investigated,the hydrochemical character-istics and distribution patterns of groundwater from inland to the sea were comprehensively analyzed,the hydro-chemical evolution process within the Bailang River basin was explored.Results indicate that inland saline water is formed primarily by the mixing of fresh water and brine,while seaward saline water is predominantly formed by the mixing of fresh water and seawater.During the brine formation process,the fresh water mixing,water-rock interaction,and cation exchange jointly altered the hydrochemical composition of brine.In addition,the mineral saturation index show that calcite and dolomite are near or at saturation level,while halite remains in an unsatur-ated state.From land to sea,different cation exchange processes occur in the groundwater system.In shallow freshwater and brackish water areas,Ca2+ is exchanged with Na+ adsorbed by aquifer media,while in other regions,the cation exchange processes is opposite.关键词
白浪河/演化过程/卤水/矿物饱和指数Key words
Bailang River/process of evolution/brine/mineral saturation index分类
海洋科学引用本文复制引用
常新月,高茂生,罗锡明,孙启明,刘震林,侯国华..山东北部泥质海岸带白浪河地区地下水水化学演化过程[J].海洋地质前沿,2024,40(3):64-74,11.基金项目
国家自然科学基金(U2106203 （）
41977173) （）
