地质调查与研究Issue(1)：41-50,10.
山东莱州湾南岸典型剖面海（咸）水入侵过程的水文地球化学识别
Hydrogeochemical Recognization of Seawater Intrusion Process at the Typical Profile in Laizhou Bay
摘要
Abstract
Laizhou Bay area, Shandong Province, is a typical area for seawater intrusion studies. In order to fur-ther research of the seawater intrusion in this area, the typical profile of Changyi-Liutuanin the south coast of Lai-zhou Bay is chosen to be studied. Various water samples (i.e. river water, fresh water,brackish water, salt water, brine water and seawater) were collected to analyze the characteristics of major hydrochemical compositions, combining environment isotopes (d18O-d2H), and the ratios of major ions and saturation index of the main miner-als. According to the hydrochemical characteristics of different waters, the mixing effect occurres firstly during the seawater (salt water) intrusion in the studying area. And then, the cation exchange and adsorption effect, the dissolution and precipitation effect take places in varying degrees. And the saltwater, brackish water formed through fresh groundwater mixing with brine water according to the special ion ratios. Some deep fresh water has also been affected by the brine water intrusion, based on the distribution characters of the saltwater and Cl--δ18O relationship. Through testing and comprehensive analysis of hydrogen and oxygen isotopes,we propose that fresh groundwater in the studying area originate from atmospheric precipitation obviously, and the brine water of Quaternary sea water origin is effected by the evaporation effect,"Oxygen elegant"is quite serious. The saturabil-ities of the main minerals show that rock salt are in the unsaturated condition, and gypsum and dolomite in the underground fresh water and brackish water are unsaturated, but they are saturated in salt water and brine water;calcite in all waters are substantially saturated.关键词
莱州湾/海水入侵/同位素/水化学Key words
Lazhou Bay/seawater intrusion/isotope/hydrochemistry分类
天文与地球科学引用本文复制引用
胡云壮,李红,李影,施佩歆,杨吉龙,胡自远,刘宏伟..山东莱州湾南岸典型剖面海（咸）水入侵过程的水文地球化学识别[J].地质调查与研究,2015,(1):41-50,10.基金项目
中国地质大调查项目唐山－秦皇岛城市地质调查 （）
