第42卷第4期 2015年8月
中国地质 GEOLOGYINCHINA
杨磊，冀绪龙，陆徐荣，等，连云港北部地区高氟地下水分布特征及成因[1].中国地质，2015,42(4)：1161-1169
Vol.42, No.4 Aug-,2015
Yang Lei, Gong Xulong, Lu Xurong, et al. Distribution and genesis of highfluoride groundwater in northern Lianyungang area [Jj. Geology in China, 2015, 42(4): 11611169(in Chinese with English abstract).
连云港北部地区高氟地下水分布特征及成因
杨磊12龚绪龙12陆徐荣12张岩12
(1.江苏省地质调查研究院，江苏南京210018;2.国土资源部地聚地质灾害重点实验室，江苏南京210018）提要：为研究连云港北部地区地下水氟水文地球化学待征，采集测试了63件地下水样品，分析了高氟地下水的空间分布特征及其形成的水文地球化学过程。结果表明，地下水中氟的质量浓度呈现出随着地下水流动而逐渐升高的变化规律，高氟地下水分布于海湾低平原及平原洼地。HCO质量浓度高的弱碱性水化学环境是促进氟富集、并增强其从沉积物向地下水中转化的主要因素。高氟地下水的形成是长期地质作用和地球化学演化的结果，矿物溶解一
沉淀作用、蒸发浓缩作用、阳离子交替吸附作用是控制地下水中氟富集的主要水文地球化学过程。关键词：氟；地下水；分布；成因；连云港
中图分类号：P641.11
文献标志码：A文章编号：1000-3657(2015)04-1161-09
Distributionandgenesisofhigh-fluoridegroundwaterinnorthern
Lianyungangarea
YANG Lei'2, GONG Xu-long"2, LU Xu-rong", ZHANG Yan'2(1.Geological Survey ofJiangsu Province,Nanjing210018, Jiangsu,China,
2. Key Laboratory of Earth Fissures Geological Disaster, Ministry of Land and Resources, Nanjing 210018, Jiangsu, China) Abstract: In order to study hydrogeochemistry of the fluoride in groundwater in northerm Lianyungang area, the authors analyzed 63 groundwater samples and investigated the distribution and genesis of high fluoride groundwater. The results show that the concentration of fluoride in groundwater tends to increase with the groundwater flow, The high- fluoride groundwater areas are distributed in low gulf plain and depression. The alkaline water environment with high concentrations of sodium and bicarbonate is the main factor responsible for fluoride enrichment and transfer of fluoride from sediments to groundwater The formation of high fluoride groundwater results from prolonged geological and geochemical evolution. The hydrogeochemical processes including mineral dissolution and precipitation, evaporation and concentration, cation exchange and adsorption are the dominant factors for the enrichmentof fluorideingroundwater
Key words: fluoride; groundwater; distribution; genesis; Lianyungang
About the first author: YANG Lei, male, born in 1981, engineer, mainly engages in the survey and study of hydrogeology and environmental geology; Email: young-ray@163.com.
收稿日期：2014-0723；改回日期：2014-10-16
基金项目：中国地质调查局地质大调查项目(1212011220005、1212011014002、1212010634504)资助。
作者简介：杨磊，男，1981年生，工程师，主要从事水文地质与环境地质调查研究工作；E-mail：young-ray@163.com。
http://geochina.cgs.gov.cn 中国地质,2015, 42(4)