| 云南老王寨金矿煌斑岩蚀变、矿化过程中元素活动规律 |
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| 引用本文： | 黄智龙,王联魁.云南老王寨金矿煌斑岩蚀变、矿化过程中元素活动规律[J].岩石矿物学杂志,1997,16(1):10-21. |
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| 作者姓名： | 黄智龙 王联魁 |
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| 作者单位： | 中国科学院地球化学研究所(黄智龙)，中国科学院广州地球化学研究所(王联魁) |
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| 摘 要： | 广泛分布于云南老王寨金矿、与金矿化在时间上、空间上密切共生的煌斑岩普遍遭受不同程度的蚀变，部分经历了矿化作用，根据岩石的蚀变程度及是否矿化可将本区煌斑岩发成新鲜（弱蚀变）、蚀变、矿化三种。质量平衡方程对煌斑岩蚀变、矿化过程中元素活动规律的计算结果表明，引起本区煌斑岩蚀变的流体为一种含过渡元素、新石元素、挥发性元素和亲硫元素（或成矿元素）的富硅、铝碱性流体，这种流体可能是本区煌斑岩石浆演化到晚期分异出来的产物；引起本区煌斑岩矿化的为富含Ｋ２Ｏ、ＣａＯ、ＣＯ２、Ｆ、Ｃｌ、Ｓ、Ａｓ、Ｓｂ、Ａｕ、Ａｇ等元素的流体，这种流体具有多源性
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| 关 键 词： | 煌斑岩 蚀变 矿化过程 元素迁移 云南老王寨金矿 |
The Regularity of Element Activity during the Alteration and Mineralization of Lamprophyres in the Laowangzhai Gold Deposit,Yunnan Province |
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| Huang Zhilong.The Regularity of Element Activity during the Alteration and Mineralization of Lamprophyres in the Laowangzhai Gold Deposit,Yunnan Province[J].Acta Petrologica Et Mineralogica,1997,16(1):10-21. |
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| Authors: | Huang Zhilong |
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| Abstract: | Widely distributed in the Zhenyuan gold deposits and closely related to gold mineralization in time and space,lamprophyres underwent different degrees of alteration and partly experienced mineralization.According to degrees of alteration and mineralization,lamprophyres in the orefield might be divided into fresh (Weakly altered),altered and mineralized ones.According to calculations by the mass balance equation for element activity regularity in tye process of lamprophyic alteration and mineralization,it is shown that fluids responsible for lamprophyric alteration were Si ,Al rich alkaline fluids containing transitional,lthophile,volatile and chalcophile(or ore forming)elements.These fluids are considered to have been products of crystallization of lamprophyric magma.The fluibs responsible for lamprophyric mineralization were enriched in such components as K 2O,C aO,CO 2,F,Cl,S,As,Sb,Au,and Ag,thus exhibiting multi source character. |
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| Keywords: | lampoophyre alteration mineralization element migration Laowangzhai gold deposit of Yunnan Province |
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