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、控矿构造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。矿体严格受北北东或北东向断裂带控制,呈脉状、透镜状产出,具尖灭再现特点。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。通过区域及矿区两方面成矿地质条件分析,认为该区具良好的找矿潜力。
Fanjiazhuang gold deposit is located in northwest of Kunyushan-Rushan Salient,north of Muping-Rushan Gold Metallogenic Belt.The zone of alteration assemblages、metallizing phase and occurrence regularity of orebody are discussed based on comprehensive research of geological features of ore deposit、wall rock alteration、ore-controlling structure etc.in this paper.The orebody which appears to be bedded or lenticular is strictly controlled by NNE or NE fracture and has the characteristic of balk reappear.The alterations of wall rock with obvious alteration zoning are mainly phyllic alteration、silification、pyritization、potassic alteration、epidotization、chloritization.The peposit has five metallogenic stage,the major metallogenic stages are quartz-pyrite mineralization stage and polymetallic sulfidization stage.The Fanjiazhuang gold deposit is considered to have a good prospecting foreground and potentiality based on composite analysis of the regional metallogenic conditions and mining area geological conditions.
出处
《中国矿业》
北大核心
2017年第S2期265-269,共5页
China Mining Magazine
关键词
赋矿规律
找矿潜力
地质特征
范家庄金矿
山东省
occurrence regularity of orebody
prospecting potential
geological characteristics
Fanjiazhuang gold deposit
Shandong province
