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安徽某地铜硫铁矿床中伴生元素有:Au、Ag、Pt、In、Cd等20余种,其中伴生金的储量已达大型金矿床,有重要的综合利用价值。 本次工作通过矿相鉴定、化学物相分析、电子显微镜、原子吸收光谱等测试手段,初步查明了矿床中金的赋存状态及矿床成因。 矿床中的金矿物形成于硫化物阶段。载体矿物为黄铁矿、磁黄铁矿;富集矿物为黄铜矿。金的成色平均为742。显微金占77.42％,90％左右为细粒金。 本矿床为多因复成矿床。
There are more than 20 kinds of associated elements in the copper-sulfur iron ore deposit in a certain area of Anhui Province, such as Au, Ag, Pt, In and Cd. The associated gold reserves have reached large gold deposits and have important comprehensive utilization values. This work initially identified the gold occurrence and the genesis of the deposit by means of mineralogical phase identification, chemical phase analysis, electron microscope and atomic absorption spectroscopy. The gold minerals in the deposit form in the sulphide phase. Carrier minerals pyrite, pyrrhotite; enrichment minerals for the chalcopyrite. The average color of gold is 742. Micro-gold accounted for 77.42%, about 90% of fine-grained gold. The deposit is multi-factor complex deposits.