Analysis of Metallogenic Phases in the Denggezhuang Gold Belt, Rushan, Jiaodong Peninsula

邓格庄金矿带是胶东地区牟平–乳山一带的典型的石英脉型金矿带，其具有较高的金品位与储量，是研究胶东石英脉型金矿十分理想的场所。本研究将以邓格庄金矿带的成矿期次为研究方向，通过野外考察、镜下观察、能谱与电子探针数据分析等方法探究区域的多阶段成矿机制，同时为理解邓格庄金矿带的成矿机理以及找矿勘探提供必要的证据。研究表明，邓格庄金矿带成矿期次按时间先后划分为：(I)黄铁矿–石英阶段；(II)石英–黄铁矿阶段；(III)多金属硫化物阶段；(IV)石英–碳酸岩阶段。其中，黄铁矿是主要载金矿物，石英-黄铁矿阶段与多金属硫化物阶段是主要的金富集阶段。The Denggezhuang Gold Belt in the Muping-Rushan area of Jiaodong Peninsula represents a typical quartz-vein-type gold deposit system characterized by high gold grades and substantial reserves, making it an ideal subject for studying quartz-vein-type gold deposits in this region. This study investigates the metallogenic stages of the Denggezhuang Gold Belt through field investigations, microscopic observations, energy dispersive spectroscopy, and electron probe microanalysis to elucidate the multi-stage mineralization mechanisms and provide critical evidence for understanding ore-forming processes and exploration guidance. The results reveal four distinct metallogenic stages in chronological order: (I) pyrite-quartz stage, (II) quartz-pyrite stage, (III) polymetallic sulfide stage, and (IV) quartz-carbonate stage, with pyrite as the primary gold-bearing mineral and stages II-III representing the main gold enrichment phases.