摘要
本文通过苏北盆地地下咸淡水同位索的测试和分析,探讨了地下水化学成分的形成及其演化规律,发现其矿化度的形成主要是由于含水介质矿物成分的淋滤和溶解所致;地下水起源于大气降水,但雨水的下渗速度极为缓慢。此外,还分析了稳定同位素氘在地下水流动方向和垂直方向上的变化,并用同位素组成计算了微咸水中成、淡水的混合比例。
In this paper, the isotopes of the salt and fresh groundwater in Northern Jiangsu basin are tested and analysed. The creation of the chemical constituents and the law of development are discussed.It is revealed that the degree of mineralization is mainly due to the leaching and dissolving of the mineral constituents of the water bearing medium. The groundwater originates from the precipitation, but it infiltrates very slowly. The variation of stable isotope deuterium along the flow direction and in vertical cross-sections are analysed, and the mixing ratio of salt and fresh water in slightly salted water are calculated using isotope composition.
出处
《勘察科学技术》
1989年第3期30-33,共4页
Site Investigation Science and Technology
