阿尔泰萨热阔布金矿床的自然铋及其与金矿化关系  

Native Bismuth in Sarekoubo Gold Deposit and Its Relation to Gold Mineralization

作　　者：钟长华[1] 徐九华[1] 丁汝福[2] 毛骞[3] 谢玉玲[1] 

机构地区：[1]北京科技大学资源工程系,北京100083 [2]北京矿产地质研究所,北京100012 [3]中国科学院地质与地球物理研究所,北京100029

出　　处：《矿物岩石地球化学通报》2005年第2期130-134,共5页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家科技攻关资助项目(2003BA612A-06 09)中国科学院地质与地球物理所重点实验室基金资助项目国家重点基础研究发展规划资助项目(2001CB409806)

摘　　要：萨热阔布金矿是阿尔泰山南缘金-多金属矿带中与断裂变质作用有关的石英脉蚀变岩型金矿床。本文通过电子探针的研究,在该矿区发现较多的自然铋矿物,它与金矿化关系非常密切,产出于多金属硫化物阶段,与方铅矿、黄铜矿等共生。矿区蚀变岩和矿石的微量元素R型聚类分析表明,Bi与Au相关最密切,Au、Cu、Ag、Bi是主要的成矿元素组合。Bi异常可以作为金矿化的重要指示,自然铋矿物的出现可以作为含金石英脉富矿地段的重要标志。The Sarckuobo gold deposit, occurring in southern margin of Altai gold-polymelallic ore belt, is a quartz-vein and al tered rock lype gold deposit related to fault metamorphism. Native bismuth, which has a close relationship with gold minerahza tion, has been found in this mine through electron mrcroprobe analysis. Native bismuth occurs in polymetal sulfidc slage . associ ated with galena and chalcopyntc. Occurring of native bismuth can be considered as an important character of the Sarekuobo gold deposit, fluster analysis of altered rocks and ores indicates that bismuth has close relationship with gold. Au, Cu. Ag and Bi are main assemblage of ore-forming elements. Abnormity of Bi can be used as an important indicator for gold mineralization, and n-ative bismuth may be a sign indicating gold-rich porlion in veins.

关 键 词：萨热阔布 金矿化 蚀变岩型金矿床 多金属硫化物 多金属矿带 含金石英脉 变质作用 阿尔泰山 电子探针 微量元素 元素组合 铋矿物 方铅矿 黄铜矿 分析表 Bi 矿区 Au 南缘 矿石 成矿 

分 类 号：P618.51[天文地球—矿床学] P618.2[天文地球—地质学]