摘要
有关胶东玲珑金矿田东区的研究比西区薄弱得多。本文论述了玲珑东区金矿床的地质特征:金矿床类型有石英脉型、蚀变岩型及其两者的过渡类型;NE—NEE向容矿断裂控制矿脉的分布,断裂的转折和交汇等部位是有利赋矿部位;金主要以金银矿的形式出现,其粒度多小于0.03mm,形态以粒状和树枝状为主,主要载金矿物是黄铁矿,次为黄铜矿和石英;成矿过程可分为四个阶段,金主要形成于第二和第三阶段。
The study of eastern district of Linglong gold field ia Jiaodong is mcuh poor compared to western district. This paper formulaies the geologic characteristics o gold deposit in eastern district of Linglcng. Gold deposits in eastern district include qnartz vein type, altered rolck type and the transiticnal type of fhe former two.The distribution of gold veins is controlled by the NE-NEE trending ore-bearing fracture. The intersection and turning part of fracture are the favourite sites for the occurring of gold deposit.Gold occurs mainly as electrum. Most of its grain are less than 0.03mm in size with the predominant shape of granular and dendroid. The main gold-loaded minerals ara pyrite.The subordinate minerals are chalcopyrite and quartz.There are four stages in ore-forming process.The gold is mainly formed in the second and third stages .
出处
《黄金》
CAS
北大核心
1989年第8期5-10,共6页
Gold
关键词
金矿床
地质特征
石英脉型
gold ore field of Linglong
quartz vain type
altered rock type.
