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滇中姚安金矿床地质地球化学特征
GEOLOGICIL AND GEOCHMICAL CHARACTERISTICS OF THE YAOAN GOLD ORE DEPOSIT IN CENTRAL YUNNAN
【摘要】 姚安金矿床以矿石品位富,载金矿物及其共生矿物组合较为特殊、复杂而引起地质工作者的重视。本文从含矿段岩石组合、围岩、含金矿石、含金矿物及火山-次火山侵入岩的稀土元素和微量元素特征,结合矿石的同位素及包裹体分析资料对比研究,认为姚安金矿床金质来源于围岩(侏罗系碎屑岩)和火山-次火山岩。
【Abstract】 The Yaoan gold deposit is thought highly of by geological workers because of high gold- bearing ores,special gold- bearing minerals and their assemblages in the deposit.Based on the study of rock combination in the ore- bearing segment,REE and microelement features of rocks and ores, and combining data of isotope and inclusion in the ores,the paper believes that the gold matter came from mainly magmatite and secondly Jurassic strata.
【关键词】 稀土元素;
微量元素;
同位素;
总体特征;
金矿床;
姚安;
【Key words】 REE and microelement; isotope; general characteristics; Yaoan gold deposit; Central Yunnan;
【Key words】 REE and microelement; isotope; general characteristics; Yaoan gold deposit; Central Yunnan;
【基金】 云南省省院省校科技合作项目!(编号YK98008-1)部分成果.
- 【文献出处】 大地构造与成矿学 ,GEOTECTONICA ET METALLOGENIA , 编辑部邮箱 ,2000年S1期
- 【分类号】P59
- 【被引频次】30
- 【下载频次】194