安徽蒙城西贾庄铁金多金属矿金的赋存状态

Occurrence of gold in the Xijiazhuang iron-gold polymetallic deposit in Mengcheng County of Anhui Province

安徽蒙城西贾庄铁金多金属矿床是蚌埠隆起地区新发现的一个重要矿床。在矿相学观察和研究的基础上,开展了矿石的电子探针分析(EPMA),以查明矿石中金的赋存状态。研究结果表明,金矿赋存状态既有可见的显微自然金,也有的以不可见金的形态赋存于黄铁矿、毒砂和黄铜矿中。研究成果为矿床成因、成矿物质来源等研究提供了重要依据。

The Xijiazhuang iron-gold polymetallic deposit in Mengcheng of Anhui Province is a newly discovered important deposit in the Bengbu uplift zone. Based on detailed ore mineragraphic observation and research, this work conducted mineral EPMA analysis to study the occurrence modes of gold. The result implies that there are both ″visible gold″ and ″invisible gold″ occurring in pyrite, chalcopyrite and arsenopyrite. The research results provide an important basis for the study of ore genesis and source of ore-forming materials.