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| 大连大魏家滨海岩溶区海水入侵化学过程 | |
| 引用本文： | 邹胜章,朱远峰,陈鸿汉,汪长堃.大连大魏家滨海岩溶区海水入侵化学过程[J].海洋地质与第四纪地质,2004,24(1):61-68. |
| 作者姓名： | 邹胜章 朱远峰 陈鸿汉 汪长堃 |
| 作者单位： | 1. 中国地质科学院,岩溶地质研究所,桂林,541004 2. 青岛海洋地质研究所,青岛,266071 3. 中国地质大学,北京,100083 4. 辽宁水文地质工程地质勘察院,大连,116000 |
| 基金项目： | 国家自然科学基金重点项目(49832005)，教育部高等学校骨干教师基金项目 |
| 摘 要： | 通过不同比例的海水与淡水的混合作用及其混合水对碳酸盐岩的混合溶蚀作用的室内模拟实验，对滨海岩溶区海水入侵过程中的化学过程和水-岩作用进行了研究。在海水入侵过程中，海水与淡水的混合作用是以机械混合为基础的复杂化学过程；过渡带混合水对围岩(碳酸盐岩)的混合溶蚀作用则是以分子扩散和表面反应为主的复杂化学过程；而混合水与岩溶空间内的松散沉积物间的各种离子交换作用主要是阳离子交换吸附。室内模拟试验和野外实测地下水化学组分剖面资料对应说明，淡水、海水界面之间的过渡带中部区的混合溶蚀作用最强，亦可能是岩溶最发育的部位。 |
| 关 键 词： | 滨海岩溶 海水入侵 化学过程 混合溶蚀 离子交换 |
| 文章编号： | 0256-1492(2004)01-0061-08 |
| 修稿时间： | 2003年6月5日 |
CHEMISTRY PROCESS OF SEAWATER INTRUSION IN LITTORAL KARST AREA OF DAWEIJIA,DALIAN CITY |
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| ZOU Sheng-zhang,ZHU Yuan-feng,CHEN Hong-han,WANG Chang-kun.CHEMISTRY PROCESS OF SEAWATER INTRUSION IN LITTORAL KARST AREA OF DAWEIJIA,DALIAN CITY[J].Marine Geology & Quaternary Geology,2004,24(1):61-68. | |
| Authors: | ZOU Sheng-zhang ZHU Yuan-feng CHEN Hong-han WANG Chang-kun |
| Institution: | ZOU Sheng-zhang~1,ZHU Yuan-feng~2,CHEN Hong-han~3,WANG Chang-kun~4 |
| Abstract: | Through two simulation experiments, the mixture effects from seawater and freshwater in different proportions, the mixture corrosion effects of mixed solutions on carbonate rocks, the chemistry process, and the water-rock interaction in the process of seawater intrusion in littoral karst area are studied. In the process of seawater intrusion, the mixture effects from seawater and freshwater are the complicated chemistry processes based on the mechanical mixture. The mixture corrosion effects of mixed solutions on carbonate rocks are the complicated chemistry processes with molecule diffusion and surface reaction.The ion exchange between mixed water and unconsolidated deposits inside caves is characteristic of cation exchange adsorption. The analysis of the mixture experiment and the groundwater chemical composition profile from freshwater boundary to seawater boundary shows that the most intensive mixture corrosion effect occurs in the middle of the transition zone, namely in the place of the most intensive karstification. |
| Keywords: | littoral karst seawater intrusion chemistry process mixture corrosion ion exchange Daweijia of Dalian |
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