藏南马扎拉金锑矿自然金的再溶解行为

Redissolution of native gold from the Mazhala gold-antimony deposit in southern Xizang

笔者从研究马扎拉金锑矿矿石中的自然金重溶现象入手 ,指出马扎拉金锑矿的成矿物质经过了后期低温热液的改造。后期低温热液的活动作用较弱 ,但其无助于成矿物质的富集 ,反而降低了金矿物的成色。

The study of the redissolution phenomenon of native gold from the ores of the Mazhala gold-antimony deposit in southern Xizang shows that the ore-forming matter from the gold-antimony deposit have been subjected to later low-temperature hydrothermal reworking. The later low-temperature hydrothermal activities are relatively weak,and not favourable for the enrichment of ore-forming matter. On the contrary,they would decrease the coloration of the mineral gold.