萨瓦甫齐铀矿床层间氧化带地球化学特征

萨瓦甫齐铀矿床不同地段层间氧化带的氧化还原程度是不同的。利用诸如w（Fe3＋）/w（Fe2＋）、w（Ra）/w（U）和有机炭等地球化学参数探讨了萨瓦甫齐铀矿床层间氧化带的地球化学特征,即矿床西南部层间氧化带氧化程度较弱,表现为全硫（∑S）、总铁（TFe）和矿石的铀质量分数低;而矿床中部及东北部层间氧化带氧化程度较强,尤其以东北部突出,它们的全硫、总铁和矿石的铀质量分数均高。铀矿化强弱明显与层间氧化带的氧化还原程度有关,层间氧化带的氧化程度越强,铀矿化则愈强;反之,则弱。

Geochemical features of the interlayer oxidation zone in Sawafuqi uranium deposit

The oxidation-reduction degree in different parts of the interlayer oxidation zone in Sawafuqi uranium deposit is different.The geochemical features of the interlayer oxidation zone in Sawafuqi uranium deposit are discussed by using the geochemical parameters such as w（Fe3＋）/w（Fe2＋）,w（Ra）/w（U）and organic carbon,etc.The interlayer oxidation in the southwestern of the deposit is weak which is represented by the low content of total sulfur,total iron and ores,but the interlayer oxididation in the middle and northeastern part of the deposit is strong,especially in the northeastern deposit which is suggested by the high content of total sulfur,total iron and ores.Uranium mineralization is clearly related to the oxidation-reduction degree of the interlayer oxidation zone.If the interlayer oxidation zone is oxidized stronger,the uranium mineralized is richer,vice versa,the mineralization is poor where the interlayer oxidation is weak.