| 大平沟金矿床矿石特征与金的赋存状态 |
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| 引用本文： | 李学智,陈柏林,等.大平沟金矿床矿石特征与金的赋存状态[J].地质与勘探,2002,38(5):49-53. |
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| 作者姓名： | 李学智 陈柏林 |
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| 作者单位： | 1. 新疆地质调查院第一地质调查所,乌鲁木齐,830011
2. 中国地质科学院地质力学研究所,北京,100081 |
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| 摘 要： | 大平沟金矿床是受韧性剪切带控制的中温动力变质热液矿床，金矿石主要为蚀变糜棱岩型，夹少量钾长石石英脉型，矿石结构有变晶结构、交代－充填结晶结构两主要类型，矿石构造以块状构造、团块状构造、细脉状构造和浸染状构造为主。金呈独立金矿物（主要为自然金）出现，以包体金、裂隙金、连生金和粒间金等形式嵌布于黄铁矿、黄铜矿、石英、钾长石及方解石等主要载金矿和中，金矿物形态多样，粒度以中细粒为主。上述特点与我国东部地区产于太古变质岩（绿岩带）中的金矿床具有可对比性，也与矿床成因研究的认识相吻合。
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| 关 键 词： | 赋存状态 金矿物 矿石特征 金矿床 韧性剪切带 变晶结构 交代－充填结晶结构 |
| 文章编号： | 0495-5331(002)5-0049-05 |
| 修稿时间： | 2001年11月20 |
ORE FEATURES AND GOLD OCCURRENCE OF THE DAPINGGOU GOLD DEPOSIT, XINJIANG, NORTHWEST CHINA |
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| LI Xue-zhi,CHEN Bai-lin,CHEN Xuan-hu,WANG Xiao-feng,WANG Ke-zhuo,CHENG Zheng-le,YANG Yi,YANG Feng.ORE FEATURES AND GOLD OCCURRENCE OF THE DAPINGGOU GOLD DEPOSIT, XINJIANG, NORTHWEST CHINA[J].Geology and Prospecting,2002,38(5):49-53. |
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| Authors: | LI Xue-zhi CHEN Bai-lin CHEN Xuan-hu WANG Xiao-feng WANG Ke-zhuo CHENG Zheng-le YANG Yi YANG Feng |
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| Institution: | LI Xue-zhi 1,CHEN Bai-lin 2,CHEN Xuan-hua 2,WANG Xiao-feng 2,WANG Ke-zhuo 1,CHENG Zheng-le 2,YANG Yi 1,YANG Feng 1 |
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| Abstract: | Dapinggou gold deposit is a medium-temperature dynamic metamorphic hydrothermal type deposit controlled by ductile shear zones. It is characterized mainly as altered mylonite type and with partly K-feldspar-quartz vein type. Ore textures are mainly blastic and metasomatic- infilling crystallization. Ore structures are mainly block, crumb, veinlet and disseminated. Gold in the ores appears as independent gold minerals like native gold, occurring in the major gold-carrying minerals like pyrite, chalcopyrite, quartz, K-feldspar and calcite at the state of inter-granular, interlocking, crevice and enclosure. With different shape, the gold minerals are commonly medium-fine grain size. The characteristics of the gold mineral are similar to those deposits in the metamorphic rocks of Archean greenstone belt in the eastern China. |
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| Keywords: | occurrence gold mineral ore feature Dapinggou gold deposit |
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