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同位素方法作为一种较新的,在国际、国内都被普遍采用和认可的方法,可以解决许多水文地质问题,如地下水年龄、地下水运动以及补给问题。该项研究是在研究区设取样点十五个进行取样,对采集的水样进行氘、氧、氚含量分析,并取地下水进行水化学分析。浅层孔隙水和基岩裂隙水的氚含量都在14.99~30.56TU之间,深层孔隙水基本在0.51~4.71TU之间。对地下水氚含量进行分析,判断地下水的形成类型及水循环情况,对地下水氘、氧之间的关系进行分析,从而判断地下水的补给来源等。
As a newer and internationally and nationally accepted method, isotope method can solve many hydrogeological problems, such as groundwater age, groundwater movement and supply. In the study, fifteen sampling sites were set up in the study area for deuterium, oxygen and tritium content analysis, and groundwater was used for chemical analysis of water. The tritium content of shallow pore water and bedrock fissure water ranged from 14.99 to 30.56 TU, and the deep pore water ranged from 0.51 to 4.71 TU. Analyzing the tritium content of groundwater, judging the formation type of groundwater and the water cycle, and analyzing the relationship between groundwater deuterium and oxygen, so as to determine the source of groundwater recharge.