【摘要】 本文采用大量光片和薄片显微镜下鉴定、人工重砂分析、电子探针分析、化学元素分析等多种手段，研究安徽东至余村金矿床的矿物组成及其主要矿物特征、化学成分，通过研究金矿物的嵌布类型、嵌布粒度、嵌布形态、金矿物的成色查明金的赋存状态，最终查明矿石中Au主要以独立金矿物自然金、银金矿存在，自然金、银金矿主要以易解离分选的晶隙金、裂隙金分布于石英晶粒、裂隙间，黄铁矿为主要载金矿物。更多还原

【Abstract】 Based on microscopic identification in a large number of polished and thin sections, analysis of artificial heavy concentrates, electron microprobe analysis and chemical element analysis, this paper researches into the mineral constituents, features and chemical compositions of main minerals, and also into the type, size and form of dissemination of gold minerals,and the content of gold for understanding the occurrence state of the gold in the Yucun gold deposit, Dongzhi, Anhui. It is concluded that the gold mainly exists in native gold and electrum, which are mainly found among quartz grains and fractures in the form of interstitial gold and fissure gold that are easy to dissociate and separate, and pyrite is the main gold-bearing mineral.更多还原