黑龙江三道湾子金矿Au-Ag-Te系列矿物特征及其成矿阶段分析  

Characteristics of the Au-Ag-Te Minerals from the Sandaowanzi Gold Deposit,Heilongjiang Province and the Metallogenic Stage

作　　者：张志华 孙丰月[2] 舒旭 ZHANG Zhi-hua;SUN Feng-yue;SHU Xu(The Northwest Geo-Exploration Institute,China Metallurgical Geology Bureau,Xi'an,Shaanxi 710119;Jilin University,Changchun,Jilin 130061)

机构地区：[1]中国冶金地质总局西北地质勘查院,陕西西安710119 [2]吉林大学,吉林长春130061

出　　处：《地质与勘探》2018年第S01期1416-1424,共9页Geology and Exploration

基　　金：矿产勘查项目(黑龙江省黑河市三道湾子金矿区矿化富集规律及成矿模型研究,编号:200823018)资助。

摘　　要：黑龙江省三道湾子金矿床是碲化物型低硫化浅成低温热液矿床,矿石类型主要为贫硫石英脉型,矿石矿物组合较简单,除了黄铁矿、黄铜矿以外,通过光薄片鉴定以及电子探针、扫描电镜分析,在矿脉中发现大量金银碲化物,主要有斜方碲金矿、针碲金银矿、碲金银矿、碲银矿等;脉石矿物有石英、方解石等,富含碲化物的地段往往是富矿囊的部位。三道湾子金矿床经历了四个成矿阶段:石英-黄铁矿阶段;石英-多金属硫化物阶段;石英-金、碲化物-硫化物阶段,为金矿脉的主体;石英-碳酸盐阶段。The Sandaowanzi gold deposit is a low sulfidation telluride-containing epithermal gold deposit.The main ore type is sulfur-poor quartz vein,and the ore minerals composition is relatively simple.In addition to pyrite,chalcopyrite,microscope and electron microprobe,and scanning electron microscopy analysis suggest that ore veins contain large amounts of gold and silver tellurides,mainly including krennerite,sylvanite,petzite and hessite.Gangue minerals include quartz and calcite.The area rich in telluride is often part of rich ore section.The gold deposit has underwent four metallogenic stages,i.e.,the quartz-pyrite stage;quartz-polymetallic sulfide phase;quartz-telluride-sulfide stage,which is the main body of the vein,and quartz-carbonate stage.

关 键 词：碲化物 矿物特征 成矿阶段 三道湾子金矿 黑龙江 

分 类 号：P618.51[天文地球—矿床学] P618.83[天文地球—地质学]