胶东东部文登金矿床地质特征  

Geological features of the Wendeng gold deposit,eastern Shandong

作　　者：董刚[1] 刘应光 朱洪岭 逯艳军[1] 柳志进[2] 周遗军[1] 

机构地区：[1]武警黄金地质研究所,河北廊坊065000 [2]武警黄金第十支队,山东烟台254001

出　　处：《黄金地质》2001年第3期21-25,共5页Gold Geology

摘　　要：文登金矿是受脆性剪切带控制的构造角砾岩 碎裂岩型金矿床 ,是脆性剪切作用形成的 ,为典型的动力成岩成矿。矿石类型主要是含金碎裂岩 ,含金构造角砾岩 ,网状含金构造角砾岩 ,碎裂化、矿化粗中粒二长花岗岩 4种。成矿作用分为 2期 5个阶段 ,第一期碎裂构造作用———热液期 (内生期 )是主成矿期 ,分 4个成矿阶段。成矿物质来源于原岩 ,主要是昆嵛山超单元中晚期粗粒花岗岩。成矿时代可能为燕山晚期 [成矿期绢云母K Ar年龄为 (10 1 97± 2 4 9)Ma]The Wendeng gold deposit is a tectonic breccia cataclastic rock type gold deposit dominated by brittle shear zone and formed by brittle shearing.It belongs to the typical dynamic mineralization and diagenesis.There are 4 ore types in the Wendeng deposit,they are the gold bearing cataclastic rocks,the net like gold bearing tectonic breccias and the cataclasied,mineralized middle coarse grained adamellite.Gold mineralization is divided into 5 phases in 2 stages.The first stage cataclasis hydrothermal stage(endogenetic stage), which consist of 4 phases of mineralization is the predominant stage. The ore forming matters come from the protolishes,mostly the coares grained granite of the superunite middle late stage of Kunyu Mountain.The mineralization period is probably at the Yanshan late stage[K Ar ages of sericite in mineralization time is (101 97±2 49 Ma)].

关 键 词：金矿 脆性剪切作用 动力成岩成矿 胶东 

分 类 号：P618.51[天文地球—矿床学]