陕西省陈耳金矿含金银矿物赋存状态研究

Status of gold and silver minerals in the Chen'er gold deposit in Shanxi Province

在野外地质调查的基础上,本文着重利用电子探针分析手段,对陈耳金矿床中产出的含金银矿物的赋存状态及成分进行了研究。研究发现,在早期形成的银金矿中,由核部到边缘,金的含量逐渐减少,而银的含量逐渐增加。碲银矿、硫银铋矿为本次研究工作中新发现的矿物,未见前人研究工作中有关于碲银矿、硫银铋矿的报道。碲银矿被包裹在硫银铋矿颗粒中产出,鉴于碲、铋和金相近的地球化学特征和密切关系,可将碲银矿和硫银铋矿作为找矿标志。

On the basis of geologic survey,the paper studied the status and the composition of gold and silver minerals of Chen’er gold deposit of by means of electron microprobe analysis（ EPMA）. The results show that the amount of Au element decreases while the amount of Ag element increases from core to rim in the early period electrum. It is the first time to discover hessite and matildite in Chener gold deposit. There was no report about the hessite and matildite in the others’ work. The hessite is wrapped in matildite.Because Te,Bi and Au have similar geochemical characteristics and close relations,so we can take the hessite and matildite as the mark of the ore searching.