三道湾子金矿床矿石特征及金的赋存状态研究  

A Study on Ore Features and Gold Occurrence State of the Sandaowanzi Gold Deposit

作　　者：吕军[1,2,3] 刘旭光 韩振哲[1,2,3] 张爱奎[4] 赵寒冬 李德荣[1,2,5] 

机构地区：[1]中国地质大学地质过程与矿产资源国家重点实验室,北京100083 [2]中国地质大学地球科学与资源学院,北京100083 [3]黑龙江省地质调查研究总院齐齐哈尔分院,齐齐哈尔161005 [4]青海省地质调查院,西宁810012 [5]黑龙江省矿业集团有限公司,哈尔滨150036

出　　处：《地质与勘探》2009年第4期395-401,共7页Geology and Exploration

基　　金：国家矿产资源补偿项目(2001-2007);黑龙江矿产资源补偿费项目(编号:SD2002-29)资助;中国地质大学地质过程与矿产资源国家重点实验室资助

摘　　要：三道湾子金矿是与大兴安岭燕山期火山活动有关的浅成中-低温热液金矿,矿石类型主要为石英脉型。矿石的结构为自形-半自形-它形粒状结构、碎裂结构、交代结构、包含结构。矿石的构造为致密块状构造、稀疏浸染状构造、角砾状构造、细脉状构造。矿体浅部金矿物以自然金、银金矿为主,呈裂隙金、粒间金、包裹金分布,金矿物以细粒为主,载金矿物主要为石英;深部富矿段金、银主要以碲化物形式存在,赋存于石英颗粒间或裂隙中。反映了成矿流体的阶段性及层次性。The Sandaowanzi gold deposit is a mesothermal -epithermal volcanogenic gold deposit which located in the DaHinggan Mountain metallo- genie belt of Yanshanian epoch. Mineralization is mostly hosted within quartz veins. The ore textures include automorphic - hypautomorphic - xenomor- phic granular, cataclastic, metasomatic and poikilitic. The ore structures mainly show massive, disseminate, breeeiated and veinlet. At shallow depth the gold occurs as fine grained native gold and electrum, and distributes in fissures, intergranular or as inclusions. Main. At deep part the gold and silver appear as gold - bearing tellurides in fissures or intergranular. It shows that the ore - forming fluids are different during different formation phases and different levels.

关 键 词：三道湾子 石英脉型金矿 碲金矿 赋存状态 

分 类 号：P618.51[天文地球—矿床学]