山东乳山金青顶金矿床金的赋存状态研究  

Study on the Occurrence of Gold Ore in Jinqingding Gold Deposit in Rushan in Shandong Province

作　　者：吴敏 张燕挥 于建涛 李增胜 徐珺 张朋朋 迟乃杰 WU Min;ZHANG Yanhui;YU Jiantao;LI Zengsheng;XU Jun;ZHANG Pengpeng;CHI Naijie(Shandong Gold Mining Limited Corporation,Mining Management Controlled Corporation,Shandong Ji'nan 250100,China;Shandong Geophysical and Geochemical Exploration Institute,Shandong Ji'nan,250013,China;Shandong Jinzhou Mining Group Limited Corporation,Shandong Weihai 264500,China;Key Laboratory of Gold Mineralization Processes and Resource Utilization,MNR,Shandong Pro-vincial Key Laboratory of Metallogenic Geological Process and Resource Utilization Shandong Institute of Geological Sciences,Shandong Ji'nan 250013,China)

机构地区：[1]山东黄金矿业股份有限公司矿业管理分公司,山东济南250100 [2]山东省物化探勘查院,山东济南250013 [3]山东金洲矿业集团有限公司,山东威海264500 [4]自然资源部金矿成矿过程与资源利用重点实验室,山东省金属矿产成矿地质过程与资源利用重点实验室,山东省地质科学研究院,山东济南250013

出　　处：《山东国土资源》2022年第6期16-20,共5页Shandong Land and Resources

基　　金：山东自然科学基金项目(ZR2019BD017)“自然资源部金矿成矿过程与资源利用重点实验室”;“山东省金属矿产成矿地质过程与综合利用重点实验室”开放课题(KFKT202117)联合资助。

摘　　要：山东乳山金青顶金矿床是一种硫化物石英脉型金矿床,富含黄铁矿,研究黄铁矿中金矿物特征,可以为金矿的勘探、矿石的选冶以及矿床成因提供理论支撑。本文通过电子探针能谱仪和波谱仪对金青顶金矿黄铁矿中金矿物的矿物学特征、化学成分和赋存状态进行了精细研究,探讨了黄铁矿与金矿的成因关系。结果表明金主要以自然金和碲金银矿的形式存在,另含少量的碲金矿,包裹在黄铁矿之中或者充填在黄铁矿的裂隙中。金矿物的形成可能是成矿流体体系达到金的过饱和从而直接沉淀所形成。Jinqingding gold deposit in Rushan is a sulfide-quartz vein type gold deposit.It is rich in pyrite.Studying the characteristics of gold minerals in pyrite can provide theoretical support for gold exploration,processing and smelting of ore and the origin of the deposit.In this paper,the mineralogical characteristics,chemistry and occurrence of gold in pyrite of Jinqingding gold deposit have been studied by using the electron probe microanalysis(EPMA)with WDS and EDS,and the relationship between pyrite and gold has been discussed.It is showed that major gold minerals are natural gold and petzite,and a small amount of calaverite,which included in pyrite or inserted in the cracks of pyrite.The formation of gold minerals may be due to the supersaturation of gold in the ore-forming fluid system.

关 键 词：金矿床 金矿物特征 赋存状态 金青顶 山东乳山 

分 类 号：P618.51[天文地球—矿床学]