摘要
我国土壤中汞的含量,一般为0.03～0.37ppm。在矿化带上方土壤中,汞的存在形式可分为低温吸附态、中温吸附态和高温吸附态三种。试验室条件下的试验结果和野外十多个矿区(点)的找矿实践证明,虽三种形式的汞,对深部盲矿体均有较好的指示作用,但是矿体上方低温吸附态汞,异常反映最清晰,分析方法简单,测定时干扰少,在金属矿找矿普查中可广泛应用。
Soil low-temperature adsorbed state mercury is a major form of occur-rence of mercury in nature. The mercury existing in this form possesses a good indicating function doth to the deep orebody and mineralization. Theexperiment has proved that it is quick,effective and ecocnomic to determineadsorbed state mercurr rhrough heat release. It can be useful to the looseoverlying thick layers and thick rocks on the condition of a reconnaissancesurvey.
关键词
汞
土壤测量
化探
低温
找矿
吸附
blind ore deposit
mercury
soil geochemical exploration
