山东省焦家金矿的金赋存状态

时间:2021-08-03 15:07:56 天文地理论文 我要投稿
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山东省焦家金矿的金赋存状态

摘要:采用显微镜和扫描电子显微镜研究了山东省焦家金矿的金赋存状态.研究发现,该矿石中载金矿物有黄铁矿、黄铜矿、脉石矿物、闪锌矿和方铅矿.在硫化矿中金粒占77.12%,脉石中金粒占22.88%.金的赋存状态有裂隙金、包裹金和晶隙金,裂隙金占60.28%,包裹金占21.63%,晶隙金占18.09%.金矿物的形态主要有球状、三角形、矩形、条状和不规则形状.焦家金矿石中金矿物的粒度范围较大,大的颗粒达到100 μm,小的'金颗粒只有3-5 μm,其中大于0.104 mm粒级的金颗粒占1.50%,0.074~0.104 mm粒级的金颗粒占5.26%,0.043~0.074 mm粒级的金颗粒占23.31%,0.037~0.043 mm粒级的金颗粒占3.76%,小于0.037 mm的金颗粒占64.29%.焦家金矿石中金矿物有自然金、银金矿、自然银、含铁自然银、金铜矿和螺硫银矿.其中,银金矿是最重要的金矿物,占71.56%.金银矿物平均成色为641.24‰.Abstract:The microscopy and scanning electronic microscopy(SEM)were used to study the gold occurrence of Jiaojia gold mine,Shandong province.The results show that the gold-bearing minerals are composed of pyrite,chalcopyrite,gangue,sphalerite and galena.77.12% of gold minerals are the sulphides and 22.88% are the gangues.The gold occurrence is composed of 60.28% fissure gold,21.63% inclusion gold and 18.09% crystal fractured gold.The morphology of gold mineral is composed of sphere,triangle,rectangle,strip and erose.The Jiaojia gold mineral owns large grain size range from 3-5 μm to 100 μm.1.5% of gold grains is more than 0.104 mm,5.26% is 0.074-0.104 mm,23.31% is 0.043-0.074 mm,3.76% is 0.043-0.037 mm and 64.29% is less than 0.037 mm.The occurrence of gold mineral is composed of native gold,electrum,native silver,iron-bearing native silver,goldcuprid and acanthite.Electrum is the most important mineral,accounting for 71.56%.The average quality is 641.26‰ for gold and silver mineral. 作者: 杨洪英  王思惠  宋襄翎  潘颢丹  马鹏程 Author: YANG Hong-ying  WANG Si-hui  SONG Xiang-ling  PAN Hao-dan  MAPeng-cheng 作者单位: 东北大学材料与冶金学院,沈阳,110004 期 刊: 中国有色金属学报(英文版)   ISTICEISCI Journal: Transactions of Nonferrous Metals Society of China 年,卷(期): 2011, 21(9) 分类号: P618.51 关键词: 金矿    金赋存状态    载金矿物    金矿物    Keywords: gold mine    gold occurrence    gold-bearing mineral    gold mineral    机标分类号: P61 P57 机标关键词: 山东省    焦家金矿    金赋存状态    金颗粒    mineral    载金矿物    scanning electronic microscopy    gold occurrence    native    粒级    扫描电子显微镜    自然    银金矿    裂隙金    金矿石    金的赋存状态    包裹金    不规则形状    grain size    金银矿物 基金项目: the National Natural Science Foundation of China,the National High-Tech Research and Development Program of China,the National Support Program of China during the 11 th Five-Year Plan Period 山东省焦家金矿的金赋存状态[期刊论文]  中国有色金属学报(英文版) --2011, 21(9)杨洪英  王思惠  宋襄翎  潘颢丹  马鹏程采用显微镜和扫描电子显微镜研究了山东省焦家金矿的金赋存状态.研究发现,该矿石中载金矿物有黄铁矿、黄铜矿、脉石矿物、闪锌矿和方铅矿.在硫化矿中金粒占77.12%,脉石中金粒占22.88%.金的赋存状态有裂隙金、包裹金和晶隙金...

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