大兴安岭北部砂宝斯金矿床控矿因素及成因  

Ore control factors and genesis of the Shabaosi gold deposit, North Daxing' anling

作　　者：王献忠[1] 舒本耀[1] 梁海军[1] 陈满[1] 

机构地区：[1]武警黄金第三支队,黑龙江哈尔滨150049

出　　处：《黄金地质》2003年第3期45-48,共4页Gold Geology

摘　　要：砂宝斯金矿床产于中侏罗统陆相碎屑岩中,共有6条矿脉,走向近SN。矿床的形成经历了4个成矿期和6个成矿阶段。矿石类型主要为蚀变砂岩和构造破碎蚀变岩型。金矿体严格受SN和NNW向断裂控制,围岩和侵入岩参与了成矿作用。矿石Pb、S、H和O同位素分析和成矿温度研究表明,金矿成矿物质来源于深部岩浆和地层,成矿溶液是岩浆热液和大气降水的混合流体,成矿温度为200～230℃,属中低温蚀变砂岩型。The Shabaosi gold deposit occurs in Middle Jurassic land facies clastic rocks.There are 6 ore veins with nearly SN trend in the deposit. The formation of the ore deposit has gone through 4 ore forming periods and 6 ore forming stages. The mainly ore types are the altered sandstone type and the tectonoclastic altered rock type. The ore bodies are strictly controlled by SN and NNW trend fault and the wall rocks and the intrusive rocks are involved in the mineralization.Based on the analysis of Pb,S,H and O isotopes and the study of mineralization temperature of the gold deposit,it is found that the metallogenic elements are from the deep magmas and strata,the mineralization liquor are mixed by magmatic hydrothermal and atmospheric water,the temperature of mineralization is at 200～230 ℃,the genetic type belongs to the meso epithermal altered sandstone one.

关 键 词：大兴安岭北部 砂宝斯金矿床 控矿因素 矿床成因 黑龙江 矿石类型 

分 类 号：P618.51[天文地球—矿床学] P611[天文地球—地质学]