| 内蒙古虎拉林地区砂金与岩金的关系 |
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| 引用本文： | 王治华,刘荫椿,王科强,刘桂阁,张勇.内蒙古虎拉林地区砂金与岩金的关系[J].黄金地质,2004,10(1):6-10. |
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| 作者姓名： | 王治华 刘荫椿 王科强 刘桂阁 张勇 |
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| 作者单位： | 武警黄金地质研究所,河北,廊坊,065000 |
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| 摘 要： | 虎拉林地区砂、岩金矿的空间位置关系十分密切。在虎拉林河上中下游及虎拉林岩金矿分别采取样品，结果表明虎拉林河砂金粒度大，分选较差，磨圆度差；砂金形态总体上以粒状为主；溶蚀系数均值小于1。微量元素含量特征表明砂金的主要物质来源是近源，与岩金矿关系密切且具有继承性。虎拉林岩金矿床的矿石中自然金颗粒粗大，矿体的上部遭到剥蚀，虎拉林河砂金主要来源于虎拉林岩金矿床，砂金可作为岩金的找矿标志。自然金化学-结晶温度图表明砂金的原生Au源为中低温热液矿床。
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| 关 键 词： | 砂金 岩金 磨圆度 物质来源 溶蚀系数 内蒙古 |
| 文章编号： | 1006-558X(2004)01-0006-05 |
Relationship between gold placers and gold deposits in Hulalin, Inner Mongolia |
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| WANG Zhi-hua,LIU Yin-chun,WANG Ke-qiang,LIU Gui-ge,ZHANG Yong.Relationship between gold placers and gold deposits in Hulalin, Inner Mongolia[J].Gold Geology,2004,10(1):6-10. |
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| Authors: | WANG Zhi-hua LIU Yin-chun WANG Ke-qiang LIU Gui-ge ZHANG Yong |
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| Abstract: | Gold placers and gold deposits are intimate spatially in Hulalin.Sampling in the upper,middle and lower streams of Hulalin river and in the deposits,the results indicate that placer gold grains are coarse, poorly sorted and poorly rounded.The form of placer gold are predominately granular and their mean value of dissolution coefficient is less than 1.The content characteristics of microelements suggest that the gold placers are proximal to ore deposits and intimate with gold deposits by inheritance.The grain size of native gold in the ores of the gold deposits is megagrained and the upper part of the gold deposits suffered denuding.Placer gold mainly derives from the gold deposits in Hulalin river and the placer gold can be taken as the criteria for gold deposit.The chemistry-temperature diagrams of native gold indicate that placer gold originates from middle-low-temperature hydrothermal deposits. |
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| Keywords: | gold deposit degree of roundness matter origin dissolution coefficient Inner Mongolia |
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