摘要
根据某滑坡区地下水氢氧同位素组成测试成果，系统地研究了该区地下水的起源及形成机制．研究表明，该区地下水具有大气降水补给的特点，其同位素组成具有明显的温度效应和海拔效应，温泉与冷泉水的出露与区域高热流值和构造以及大气降水的补给量有着密切的关系．
Research on O-H isotopes indicates that the underground water was derived from heated and circulating meteoric water.There is a negative correlation between δ18O and altitude,which is reflected by -δ18O=0. 0026H(m) +7. 75. The δ18O value of geothermal water can be compared with that of local meteoric water, but shows certain δ18O-shift, suggesting that the main watersupply'source seems to be meteoric water in the same area.
出处
《山地研究》
CSCD
1998年第1期42-46,共5页
基金
国家计委95重点项目!计国土(1996)4号
关键词
滑坡区
地下水
形成机制
氢同位素
氧同位素
Oxygen and Hydrogen isotope, δ^（18）O-shift, the altitude effect, thermal current,depressurisation belt
