桂西北地区超微粒浸染型金矿氧化矿形成条件及找矿

本文分析了金在表生氧化带的地球化学性状,具体研究了桂西北地区超微粒浸染型金矿典型矿床表生氧化带中金的氧化淋滤和富集——矿体及矿石特征,气候条件,矿体赋存标高、剥蚀深度及具体出露情况,地形、地貌及水文地质条件,氧化带发育情况及氧化壳类型,矿体形态、产状、厚度和品位变化——以及保存条件等。总结出该区氧化矿形成的十项有利条件,并以此为基础对本区该类型金矿氧化矿的找矿问题进行了探讨。

THE FORMING CONDITIONS AND PROSPECTING SYMPOSIUM OF THE OXIDIZED ORE IN THE SUPER MICROGRAINED IMPREGNATION-TYPE GOLD DEPOSITS IN NORTHWESTERN GUANGXI

This paper analysed geochemical habit of the gold in superficial oxidation zone,concretely studied conditions of oxidation leaching and enrichment and preservation of the gold in superficial oxidized zone of the typecal super micrograined impregnationtype gold deposits, which consist of: the characters of the orebody and ores, climate condition, elevation and denudation depth and emergence circumstances of the orebody, conditions of landform and geo-morphology and hydrogeology, develoment degree of the oxidation zone and type of oxidation shell, change factors on the shape and occurrence and thickness and gold tenor of the orebod-ies, and preservation of it. And 10 favourable conditions forming oxidition ores were summedup. Lastly, on the basis of these, it probed into prospecting for the oxidition ores of the gold deposits in this region.