摘要
本文研究了四川绵竹三箭水及其邻区水体的同位素组成特征,以氘过量参数(d=δD-8δ18O)在地热勘探中的示踪作用,再通过对研究区地下水氘过量参数和水体氚含量(T)的相关性分析,综合运用于查明区内温泉地下水的成因,包括地下热储层内地下水的来源、补给源区、运移途径等等;确定水体均来源于大气降水,山前盆地深部地下水的补给源区在西、西北部高山区,径流方向由西北向东南,径流途径和在地下滞留时间都很长,并由此圈定了几个地热勘查的重点靶区。
Based on the isotopic features of water bodies in the Sanjiashui region ,this paper uses the theory of deuterium excess parameter(d) to discuss cause of formulation, recharge source, removed path, detained time of ground water. These problems are of significance to evaluating the size of geothermal water and exploited potential of thermal springs in neighboring areas. We analyzed the relationship between d and tritium content(T) of different water bodies in Sanjianshui region and obtained some conclusions. Firstly, all water bodies in Sanjianshui originated from precipitation. Secondly, precipitation in the northwest mountain area that has a long removed path and long detained time serves as the recharge resource of groundwater in the basin. In addition, we demonstrated the possibility of existence of geothermal water at several positions in the Sanjianshui region.
出处
《矿物岩石地球化学通报》
CAS
CSCD
2004年第2期129-133,共5页
Bulletin of Mineralogy, Petrology and Geochemistry
关键词
水体同位素
氘
氚过量参数
地热勘探
地质条件
地热水
deuterium excess parameter(d)
prospecting for geothermal water
tritium content(T)
