应用于水文与工程地质的化探新方法土壤吸附汞地球化学测量

A new geochemical exploration method for geochemical measurement of mercury absorbed in soil using in hydrogeology and engineering geology

介绍了化探土壤吸附汞地球化学测量方法的基本原理，指出土壤中汞气异常具有多种来源，单一测汞方法不能区别其来源。测汞方法最重要的作用是准确指出汞气的迁移通道—基岩的断裂破碎带。因此该方法更适用于水文与工程地质勘查，特别是地下水勘查。简要介绍了化探土壤吸附汞测量的工作方法及效果和单波长原子吸收测汞仪直接热解土壤样品及吸附汞偏提取分析技术。方法简明、操作简单、解释明确、成本低廉。

The paper introduces the basic principle of the detection method for mercury absorbed in soil during geochemical exploration. It points out that there are many sources of mercury anomaly in soil and they cannot be distinguished by single mercury measurement method. The most importent role of mercury measurement method is to exactly indicate the migration path for mercury gas fault fractural zone in country rock. Therefore, this method is more suitable in hydrological and engineering geological survey, especially in ground water survey. It briefly introduces the working method and result of measurement of mercury absorbed in soil during geochemical exploration, also the off extracting and analyzing technology of absorbed mercury as well as the direct thermal decomposition of soil sample by monowavelength atomic absorption mercury analyzer. It is brief and clear in method, simple in operation, definite in interpretation and low in cost. It is suitable for the personnel not specialized in geochemical exploration.