| 半宽金矿床微量元素地球化学研究 |
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| 引用本文： | 孙丽娜,王恩德.半宽金矿床微量元素地球化学研究[J].地质与资源,1996,5(3):218. |
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| 作者姓名： | 孙丽娜 王恩德 |
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| 作者单位： | 沈阳黄金学院 |
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| 摘 要： | 半宽金矿床有两类矿石:石英-黄铁矿型和石英-多金属硫化物型。微量元素研究表明元素组合为Bi、Pb、Au、Ag、Zn、Sb、W、Cu、As、Mo。矿石中铅含量是区分黄铁矿型矿石和多金属硫化物矿石的重要指际。金矿化与Co/Ni、Cu+Pb、Rb/Sr值密切相关。1号脉和9号脉矿石微量元素的对比研究表明9号脉Au与Mo、Ag、Hg,As、Pb具显著正相关;1号脉Au与其他元素相关性不明显。9号脉经历三次金矿化,1号脉仅有一次金矿化。从矿石微量元素地球化学研究结果分析,9号脉下部仍有延伸。
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| 关 键 词： | 半宽金矿床 微量元素分布规律 成矿预测 河南 |
| 收稿时间： | 1996-01-22 |
STUDY ON THE MINOR ELEMENTS GEOCHEMISTRY OF BANKUAN GOLD DEPOSIT |
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| Sun Lina,Wang Ende.STUDY ON THE MINOR ELEMENTS GEOCHEMISTRY OF BANKUAN GOLD DEPOSIT[J].Geology and Resources,1996,5(3):218. |
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| Authors: | Sun Lina Wang Ende |
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| Institution: | Shenyang College of Gold |
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| Abstract: | Bankuan gold deposit is located in the north part of Xiaoshan dome that is the eastern part of Qinling oregenic belts. The basement is consisted of Archean-Proterozoic metamor-phic rocks and migmatite complex. The gold bodies are existed in the fracture zones of east-west trending and the discordant zone between Archean and Proterozoic rocks. The sixteen auriferous quartz veins are classed into I vein group and Ⅸvein group based on the geologic characteristics. There were two type ores in Bankuan gold deposit, one is quartz-pyrite ore type, and another is quartz-polymetallic sulfides ore type. The host alterations of silicify and sericitize were closely associated with the mineralization of gold. The study of minor elements in the ore indicated that elements association were Bi -Pb-Au-Ag -Zn-Sb-W-Cu - As-Mo. The content of lead in ore may be used as a discrimination index of ore type. The research of minor elements shows that gold mineralization related to the ratios of Co/Ni、 Cu+Pb and Rb/Sr. Gold has positive correlation to the elements: Mo、 Ag、 Hg、 As、 Pb、 on vein Ⅸ , but has no correlation to any elements on vein I . Based on the clester analysis and correlation,gold mineralization were polystage on vein K and mineralizing process can be divided into three epoches with geologic setting; but only one epoch of mineralizing process were on vein I . Then, the study on the minor elements indicated that the gold mineralization on vein Ⅸ verges downwards. |
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| Keywords: | Bankuan gold deposit minor element distribution pattern metallogenic prognosis Henan province |
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