甘肃省文县阳山金矿安坝里南矿区矿石特征及金矿物赋存状态研究  

Characteristics of ores and occurrence of gold in southern Anbali mining area of Yangshan gold deposit in Wen county of Gansu

作　　者：南争路 李建忠[2] 余金元 毛世东[2] 沈睿文[1] 董富权[3] 

机构地区：[1]武警黄金第三总队,四川成都610036 [2]武警黄金第十二支队,四川成都610036 [3]武警黄金第十一支队,湖南宁乡410600

出　　处：《矿产与地质》2013年第2期137-143,共7页Mineral Resources and Geology

摘　　要：甘肃阳山金矿安坝里南矿区是阳山金矿勘查程度最高的区段。矿区赋矿地层为泥盆系中统三河口群第三岩性段,控矿构造为安昌河—观音坝断裂。主要矿石类型为蚀变千枚岩型及蚀变斜长花岗斑岩型,其中金属矿物占3.51%,以黄铁矿、毒砂、辉锑矿为主,属贫硫型矿石。矿石中有益组分主要为金,其它有益组分不具备综合利用价值。主要载金矿物为黄铁矿,其次为毒砂。金矿物主要以包裹金、粒间金两种状态产出,以包裹金为主,该赋存状态有利于金矿物的浮选回收。Southern Anbali mining area is the section which attracts the most exploration in Yangshan gold de- posit of Gansu. The ore bodies are hosted in the third lithology section of Devonian Sanhekou Group and controlled by the Anchanghe-Guanyinba fault system. The most important types of ores are altered phyllite and plagiogranite. Metal minerals account for 3.18%, such as pyrite, arsenopyrite and stibnite which are low-insulfur ores. The beneficial component is gold, while other beneficial components have no value of compre- hensive usage. Most vehicles for gold are phyrite, and some are arsenopyrite. Gold minerals are produced in the form of Au in enclosing structure （most） and intergranular Au. The occurrence of gold is favorable for the flotation recovery.

关 键 词：金矿床 矿石特征 赋存状态 阳山 甘肃 

分 类 号：P618.51[天文地球—矿床学] P595[天文地球—地质学]