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《Earth and Environment》 2008-03
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RESEARCH ON CIRCULATION MODE FOR SALT SPRINGS BY ISOTOPE TRACING IN YANJIN,TIBET

QI Ji-hong1,XU Mo1,ZHANG Qiang1,QIN Li-mao2(1.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China;2.School of Civil Engineering,Southwest Jiaotong University,Chengdu 610010,China)  
Based on the analysis results of isotopes and the geological environment,the circulation mode of salt spring water is confirmed under the Earth.The stable isotopes of 18O,D and radioactive isotopes of 3H in the spring water can give proof about the type of supply water and blending conditions.Also,the altitude of supply water can be confirmed if the supple water is rain.The relationship between 13C and 18O can provide some information about water-rock reactions,and the correlative stratum where the spring flows through can be concluded.It is concluded that the salt sprig shows some difference in circulation mode from the hot spring-Quzika,and the supple water of the spring is rain and the Lancangjiang River water,but the departure of 18O according to the rain is that the Lancangjing River water mixes the salt spring and rock inflection.The main strata of the salt spring flowing through are T3d ~ T3b,and it has taken more than several dozens of years before they can effuse from the rock crannies.
【CateGory Index】: P592
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