喜迎金矿床地质特征及成因类型探讨  

DISCUSSION ABOUT GEOLOGICAL FEATURE AND GENETIC TYPE OF XIYING GOLD DEPOSIT

作　　者：梁广林[1] 王世新[1] 陈杰[1] 晁会霞[2] 张建滇[1] 

机构地区：[1]新疆维吾尔自治区地质矿产勘查开发局第一地质大队,新疆昌吉831100 [2]长安大学地球科学与国土资源学院,陕西西安710054

出　　处：《新疆地质》2004年第2期178-182,共5页Xinjiang Geology

摘　　要：喜迎金矿床是新疆东南天山发现的一种新类型金矿,矿床产于下石炭统甘草湖组碳酸盐岩地层中.容矿岩石为含陆屑砂屑白云岩,矿石中金矿物以自然金为主,多呈微细粒包裹金.主要载金矿物为黄铁矿,呈细脉浸染状分布.成矿期分为4个阶段:黄铁矿石英白云岩阶段(Ⅰ)、金-黄铁矿-石英-碳酸盐脉阶段(Ⅱ)、黄铜矿-黄铁矿-石英阶段(Ⅲ)、石英.碳酸盐阶段(Ⅳ),通过矿区成矿地质特征、矿石矿物特征及成矿物理、化学特征综合分析,初步认为喜迎金矿床为卡林型金矿床。Xiying gold deposit is a new type gold deposit found in southeast Tiaushan, Xinjiang. The deposit occurs in C-ancaohu formation carbonates of lower carboniferous. Host rock is dolomite containing terrigenous elastics and sand elastics. Native gold is the main gold mineral and usually occurs as superfine inclusions. The main gold-host mineral is pyrite. Four mineralization stage was recognized, they are: pyrite-quartz-dolomite stage (Ⅰ); gold-pyrite-quartz-carbonate stage (Ⅱ); chalcopyrite-pyrite-quartz stage (Ⅲ); quartz-carbonate stage (Ⅳ). According to the integrated analysis to the geological feature, ore mineral characteristics, ore-forming physical-chemical condition, we can primary conclude that Xiying gold deposit is a Carlin type gold deposit.

关 键 词：卡林型金矿床 成矿 成因类型 石英 金矿物 矿石矿物 容矿岩石 黄铁矿 微细粒 包裹金 

分 类 号：P618.51[天文地球—矿床学] TD953[天文地球—地质学]