| 内蒙古朱拉扎嘎金矿火山岩岩(矿)相学及成矿意义 |
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| 引用本文： | 刘妍,杨岳清.内蒙古朱拉扎嘎金矿火山岩岩(矿)相学及成矿意义[J].矿床地质,2002,21(3):304-310. |
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| 作者姓名： | 刘妍 杨岳清 |
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| 作者单位： | 中国地质科学院矿产资源研究所,北京,100037 |
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| 基金项目： | 本文为中国地质调查局定向基金项目"内蒙古朱拉扎嘎金矿地质特征及外围找矿"的部分成果 |
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| 摘 要： | 笔者对内蒙古朱拉扎嘎金矿做了详细的镜下岩（矿）相学研究工作,首次发现火山岩（包括石英角斑岩,粗面流纹岩,团粒状充纹岩,变矿化流纹岩,蚀变霏细岩等）和其他火山活动的痕迹。改变了过去人们对该矿床成因的认识。火山活动不仅带来了大量熔浆热物质,而且带带来了大量的成矿金属元素,为矿床的形成准备了丰富的物质基础和良好的成矿环境。因此,与中元古代朱拉扎嘎毛道组地层沉积同期发生的火山作用对朱拉扎嘎金矿的形成起着重要的作用。
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| 关 键 词： | 岩相学 火山活动 酸性火山岩 内蒙古 金矿床 成矿环境 火山岩 |
| 文章编号： | 0258-7106(2002)03-0304-07 |
Facieology and Mineragraphy of Volcanic Rocks from Zhulazhaga Gold Deposit in Inner Mongolia and Their Significance |
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| Liu Yan and Yang Yueqing.Facieology and Mineragraphy of Volcanic Rocks from Zhulazhaga Gold Deposit in Inner Mongolia and Their Significance[J].Mineral Deposits,2002,21(3):304-310. |
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| Authors: | Liu Yan and Yang Yueqing |
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| Abstract: | Based on detailed facieologic and mineragraphic studies of the Zhulazhaga gold deposit, the authors discovered for the first time volcanic rocks consisting of quartz keratophyre, trachyliparite, lumpal rhyolite, altered and mineralized rhyolite, and altered eurite, and other evidence of volcanic activity. Strong metasomatism and alteration associated with gold mineralization took place between volcanic magma and strata during the Middle Proterozoic volcanic activity. Therefore, the synsedimentary volcanic activity within the Zhulazhagamaodao Formation must have played an important role in the formation of the Zhulazhaga gold deposit. |
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| Keywords: | facieology and mineragraphy felsic volcanic rocks Zhulazhaga Inner Mongolia |
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