| 河北小营盘金矿床的地质环境 |
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| 引用本文： | 王魁元.河北小营盘金矿床的地质环境[J].地球科学,1988(6). |
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| 作者姓名： | 王魁元 |
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| 作者单位： | 天津地质矿产研究所 |
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| 摘 要： | 小营盘金矿床的含金石英脉主要赋存在两个地层单位中,第一个是浅色的麻粒岩段,第二个是暗色的变粒岩段。变火山岩地球化学特征表明,它们生成的最有利的构造环境是岛弧模式;控矿构造是倒转向斜翼部的冲断层;容矿围岩变质级别达到角闪岩相和麻粒岩相。根据物理化学条件所计算的金的成色与国外金矿床相比,该矿床是近地表条件下形成的。
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| 关 键 词： | 金矿床 麻粒岩 变粒岩 岛弧模式 河北省 |
THE GEOLOGICAL SETTING OF XIAOYINGPAN GOLD DEPOSITS IN HEBEI |
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| Wang Kuiyuan.THE GEOLOGICAL SETTING OF XIAOYINGPAN GOLD DEPOSITS IN HEBEI[J].Earth Science-Journal of China University of Geosciences,1988(6). |
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| Authors: | Wang Kuiyuan |
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| Institution: | Tianjin Institute of Geology and Mineral Resources |
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| Abstract: | The gold-bearing quartz veins are mainly located in two stratigra-phic units in Xiaoyingpan gold deposits, the first is light-coloured granulite group, and the second is dark-coloured granulitite group. The geochemical character of metavolcanics has shown that their most favourable tectonic environment was an arc-island model. The structural control over the ore deposits was a thrust in the limb of the overturned syncline. The host rocks were metamorphosed to the amphibolite and granulite facies. The percentage of gold, was calculated based on the physical-chemical conditions. In contrast to foreign gold deposits, the deposits were formed in near surface conditions. |
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| Keywords: | granulite granulitite gold deposits atc-island model Hebei province |
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