| 内蒙古大青山地区主要金矿床矿化特征及成因 |
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| 引用本文： | 徐九华,谢玉玲.内蒙古大青山地区主要金矿床矿化特征及成因[J].地质与勘探,1998,34(6):14-20. |
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| 作者姓名： | 徐九华 谢玉玲 |
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| 作者单位： | 北京科技大学资源工程学院 |
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| 基金项目： | 中国有色金属总公司地质勘查总局和冶金工业部人教司资助 |
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| 摘 要： | 大青山地区金矿床主要类型为绿岩型热液金矿床，乌拉山群为重要的矿源层。固阳－武川断裂控制了金矿田的总体分布。构造岩发育，热液蚀谱强烈的地段是有利的成矿地段。成矿流体具低盐度，ＣＯ２／Ｈ２Ｏ较高的特点。氢，氧，碳同位素组成特征表明，成矿热液与区域性成矿期岩浆活动有关，并受大气降水影响。矿石硫具幔源和下地壳源性质。梁前经后石花至松树曳一线的山后断裂附近，是很有前景的成矿带。
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| 关 键 词： | 大青山 金矿床 矿化特征 矿床成因 内蒙古 |
METALLOGENY AND MINERALIZATION OF GOLD DEPOSITS IN DAQINSHAN AREA,INNER MONGOLIA |
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| Xu Jiuhu,Xie Yuling,Qian Dayi.METALLOGENY AND MINERALIZATION OF GOLD DEPOSITS IN DAQINSHAN AREA,INNER MONGOLIA[J].Geology and Prospecting,1998,34(6):14-20. |
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| Authors: | Xu Jiuhu Xie Yuling Qian Dayi |
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| Abstract: | Gold depositis in Daqinshan area are mainly greenstone-belt type. Wulashan group is the most important ore source stratum. The Guyang-Wuchuan fault has controlled the distribution of gold field. The places where tectonic rocks and hydrothermal alteration have been developed are significant for ore-formation, re-forming fluids were low in salt and rich in CO 2 . The temperatures of ore-forming fluids were mid-high, and pressures of that of gold deposits in dutile shear zones were high. H, O, C isotope compositions show that fluids ware related to magma during ore-formtion and affected by meteoric water. Ore sulfur was mantle and lower crust sources. The prospecting district is near the fault area from Liangqian to Songshubei. |
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| Keywords: | gold deposits mineralization ore genesis Daqinshan |
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