| 延边地区火山岩型金矿地球化学及成矿作用研究 |
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| 作者单位： | 洛阳工业高等专科学校，长春科技大学 |
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| 摘 要： | 延边地区北部大面积出露中生界（Ｊ３）火山岩系，为正常的钙碱性系列，由玄武岩－安山岩－石英安山岩组成，以富含ＡＳ、Ａｇ、Ｓｂ、ＡＳ、Ｂｉ为特征。其中的金矿床可分为两类即蚀变岩型高温热液矿床和浅成中低温热液矿床。同位素资料表明，其成矿热液主要来自火山岩浆。
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| 关 键 词： | 火山热液 金矿 富集系数 地球化学 |
GEOCHEMICAL CHARACTERISTICS OF THE VOLCANIC GOLD DEPOSITS AND METALLIZATION IN YANBIAN,JILIN |
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| Authors: | Yang Gangbin |
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| Abstract: | The mesozoic volcanic rock-series(J) related closely to Gold deposit are exposed widely in theNorthern Yanbian.The cafe-alkalic rock series consist of basaltic andesite-andesite-quartz andesite.Therock-series are characterized by higher abundance of An,Ag,Sb, As and Bi.The gold deposits relatedclosely to the volcanic rock-series can be divided into two types:1.Volcanic hydrothermal deposit formed in high temperature;2.Volcanic hydrothermal deposit formed in low temperature.The hydrothermal comes mainly from volcanic magma according to isotope data. |
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| Keywords: | Volcanic hydrothermal gold deposit concentration coefficient |
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