有关PGE比值不仅可以反映出元素的地球化学行为，亦可区分或指示不同环境下pge地球化学演化的规律性。
PGE ratios can not only show the geochemistry action of platinum-group element, but also explain the geological evolution rules of PGE in different environment.
惰性气体同位素地球化学是研究地幔脱气作用和地球大气形成与演化的有效工具。
Noble gas isotopic geochemistry is a useful tool for studying on mantle degassing and evolution of the Earth's atmosphere.
本文通过岩溶特征分析和模拟试验研究，探索了岩溶形成演化环境及水文地球化学和水动力学蚀变模型。
Through the analysis of karst characters and study of simulated tests, the paper explores environment of formation and evolution of karst and hydrogeochemistry and hydrodynamic alteration model.
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