黄金科学技术 ›› 2019, Vol. 27 ›› Issue (6): 826-834.doi: 10.11872/j.issn.1005-2518.2019.06.826
Kechuan ZHANG(),Qingwei LUO(),Aiwen YI,Deyu QIN,Cheng QUAN,Jibing YANG
摘要:
PL7184金矿床位于环维多利亚湖金矿成矿区的马巴莱—布洪古基拉绿岩型金矿带上,对其矿石特征及金的赋存状态进行研究,有助于指导矿石选冶工艺及流程优化。通过野外地质观察、光薄片鉴定、电子显微镜和电子探针分析等技术方法,对该区金矿床矿石特征和金的赋存状态进行了系统研究。结果表明:金矿体主要赋存在条带状含铁建造岩层与酸性火山沉积岩层间的剪切破碎带内,区内金矿石划分为稠密浸染状黄铁矿化金矿石、稀疏浸染状黄铁矿化金矿石、细脉状黄铁矿化金矿石和含星点状黄铁矿化金矿石4种自然类型,其中稠密浸染状黄铁矿化金矿石含金性最好。金矿物的种类以银金矿为主,有少量自然金;金矿物的赋存状态以粒间金为主,其次为包裹金和裂隙金,金矿物粒度以中细粒为主,粒径多在0.01~0.07 mm之间。
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