摘要
范家庄金矿位于胶东昆嵛山-乳山凸起西北部,牟平-乳山金成矿带北端。本文通过矿床地质特征、围岩蚀变等方面展开综合研究,划分了蚀变组合分带及成矿阶段,总结了矿体赋存规律。围岩蚀变主要有绢英岩化、硅化、黄铁矿化、钾化、绿帘石化、绿泥石化等,并具明显蚀变分带现象。矿床的成矿期次划分为五期,其中主要的金成矿阶段为石英-黄铁矿阶段及多金属硫化物阶段。
The Fanjiazhuang gold deposit is in the northwest Kunyushan-Rushan sag in Jiaodong, at the northern end of the Mu-Ru gold metallogenic belt. Acomprehensive study of the geological characteristics of the deposit and the alteration of the surrounding rock was completed, dividing the alteration combination zoning and metallogenic stage, and summarizing the occurrence law of the ore body. The surrounding rock alterations mainly include shale lithifcation, silicifcation, pyrite mineralization, potashation, green curtain petrochemicals, chlorite petrochemicals, etc. and show obvious alteration and zoning. The ore-forming period of the deposit is divided into fve stages, of which the main gold mineralization stages are the quartz-pyrite and polymetallic sulfde stages.
作者
黄鑫
HUANG Xin(Shandong Provincial Research Institute of Coal Geology Planning and Exploration,Shandong Jinan 250100,China)
出处
《上海国土资源》
2018年第4期79-84,共6页
Shanghai Land & Resources
基金
山东省国土资源厅科研项目"山东省烟台市牟平区范家庄金矿普查"(鲁国土资字[2015]350)
