新疆康古尔塔格金矿床矿石建造特征及其成因研究  

CHARACTERISTICS AND GENETIC STUDY OF GOLD-ORE FORMATION IN KANGGUERTAGE GOLD DEPOSIT,XINJIANG

作　　者：王志辉[1] 

机构地区：[1]成都理工学院,成都610059

出　　处：《矿物岩石》1996年第4期91-98,共8页Mineralogy and Petrology

摘　　要：矿床产于下石炭统雅满苏组,含矿岩系为近滨-浅海相变质碎屑岩、碳酸盐与钙碱性火山岩、火山碎屑岩。矿化受韧性-脆性剪切带控制,产于千枚岩-糜棱岩中。矿石构造-共生类型分为①细脉-浸染状黄铁绢英蚀变碎裂岩型,②细脉-浸染状磁铁绿泥石蚀变碎裂岩型,③含金石英脉型。自然金呈晶隙、裂隙与包体金产出,粒度φ/mm 一般在0.03—0.07之间,部分金为显微机械包体存在于黄铁矿、方铅矿、黄铜矿、重硫铋铜铅矿和铜蓝矿中。矿石典型元素组合为 Au,Cu,Bi,Pb,Zn,具原生垂直分带现象。矿石是动力变质热液生成的,分为3个成矿期6个成矿阶段。The deposit is located in Yamangsu Group(Lower Carboniferous),ore rocks are meta- morphic arenite carbonate rocks,cale-allkali volcanic rock and pyroclastic belong to off-beach to neritic facies.Locating in phyllite and mylonite,mineralizantion is controlled by ductile-brittle shearing zone.Ore structure and paragenesis types can be classified as:①veinule-disseminated beresitic altered cataclastic rock;②veinule-disseminated berthierine altered cataclastic rock;③ gold quartz type.Native gold appears as crystal interstice,fracture and inclusion gold.Main grain size are between 0.03 mm—0.07 mm.Some gold is presented as microscopic go1d existing in pyrite,galena,chalcopyrite,wittichenite and covelline.Typical element aassociation is Au,Cu,Bi, Pb and Zn,primary vertical zonality is also found.The ores are generated from dynamometamor- phic hydrothermal fluid.Three mineralization epoch and six mineralization stages are recognized.

关 键 词：金矿床 矿石建造 新疆 康古尔塔格矿区 

分 类 号：P618.510.2[天文地球—矿床学]