确定砂岩型铀矿体定位新方法--水岩体系Eh-pH法

水岩体系Eh-pH方法是根据水岩相互作用原理,来确定砂岩型铀矿体定位的一种新方法.研究结果表明:从氧化带到还原带,水岩体系Eh值明显下降,同一氧化还原环境水岩体系Eh平均值极为接近;不同氧化还原环境,其水岩体系pH值亦有所不同,氧化带和还原带处于弱碱性介质环境,过渡带(矿化地段)处于中性介质环境;水岩体系Eh和pH值可以作为划分含矿层氧化还原环境分带及圈定铀矿体位置的重要依据.

A new method to determine the position of sandstone type uranium ore-body --Water-rock system Eh-pH method

Water-rock system EhpH method is a kind of new way to determine the position of sandstone type uranium ore-body according to water-rock interaction principle. Study show that water-rock system Eh values are obviously decrease from oxidation zone to reduction zone, and that average value of water-rock system Eh is very close in the same redox environment. Water-rock system pH value is also a little different in different redox environments, oxidation zone and reduction zone are located in a bit less alkali environment, and transitional zone (mineralizing zone) is in neutral environment. Water-rock system Eh, pH values have been as an important evidence to divide redox environment and determine the position of uranium ore-body.