Based on a hydro-geological survey of the Huize lead-zinc deposit in Yunnan Province and through sampling and tests of stable isotopes of hydrogen and oxygen (δD and δ18 O) as well as radioactive isotope of tritium (T) in the surface water and groundwater, the recharge sources, hydraulic connection and ages of the deep groundwater were analysed. Results indicated that the recharge source of groundwater was mainly from atmospheric precipitation in the mining district. Tritium in the shallow aquifers was less than 30 years old, whilst around 40 years old or over in the deep aquifers. From shallow to deep, the ages of groundwater tended to get older and older, and its cyclic and renewable capabilities became weakened gradually so that the static groundwater reserves would mainly be consumed in the deep development.%在研究云南会泽铅锌矿区水文地质调查的基础上,通过对地表水、地下水的氢氧稳定同位素(δD、δ18O)和放射性同位素氚(T)取样测试,分析了矿山深部地下水的补给来源、水力联系及年龄.研究表明:矿区地下水的补给来源主要为大气降水;矿区浅层地下水氚年龄小于30 a,深部中段地下水氚年龄在40 a左右及以上,地下水年龄由浅部到深部逐渐变老;由矿区浅部到深部中段,地下水的循环交替及可更新能力逐渐减弱,深部中段开拓将以消耗地下水静储量为主.
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