| Element—Assemblage Zoning Features of Gold Deposis in the Cambrian Silicalite Formation,Western Qinling |
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| 引用本文： | 刘家军,郑明华,等.Element—Assemblage Zoning Features of Gold Deposis in the Cambrian Silicalite Formation,Western Qinling[J].中国地球化学学报,1997,16(3):271-277. |
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| 作者姓名： | 刘家军 郑明华 |
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| 作者单位： | [1]InstituteofGeochemistry,ChineseAcademyofSciences,Guiyang550002 [2]InstituteofMineralDepoosits,ChengduUniversityofTechnology,Chengdu610059 |
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| 摘 要： | The gold deposits,occurring in the south subzone of western Qinling,are the only typical and important strata-bound gold deposits,which are associated with submarine exhalative sedimentation.The gold deposits include the La‘erma ore deposit,the Qiongmo ore deposit and the Yaxiang ore occurrence.They are hosted i the Cambrian silicalite formation composed of black chert and slate.The presence of typical chert offers important evidence to evaluate the possible submarine exhalative system and its role in the formation of the gold deposits,which are closely associated with peroclation and diffusion in the horizontal,vertical and axial directions,Element-assemblage zonation is clearly seen due to differences in element concentrations in different directions,Such a zonation makes gold.selenium,uranium,copper,stibium,molybdenum,mercury,etc,precipitate in the form of simple or composite orebodies.The establishent of the element-assemblage zonation is highly helpful for evaluating directly the metallogenesis of gold deposits.
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| 关 键 词： | 硅质岩 金矿床 元素分带性 秦岭地区 沉积环境 |
Element-assemblage zoning features of gold deposits in the cambrian silicalite formation, western Qinling |
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| Jiajun Liu,Minghua Zheng,Jianming Liu,Yufeng Zhou,Xuexiang Gu,Bin Zhang.Element-assemblage zoning features of gold deposits in the cambrian silicalite formation, western Qinling[J].Chinese Journal of Geochemistry,1997,16(3):271-277. |
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| Authors: | Jiajun Liu Minghua Zheng Jianming Liu Yufeng Zhou Xuexiang Gu Bin Zhang |
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| Institution: | (1) Institute of Geochemistry, Chinese Academy of Sciences, 550002 Guiyang;(2) Institute of Mineral Deposits, Chengdu University of Technology, 610059 Chengdu;(3) Research Center of Mineral Resources Exploration, Chinese Academy of Sciences, 100101 Beijing |
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| Abstract: | The gold deposits, occurring in the south subzone of western Qinling, are the only typical and important strata-bound gold
deposits, which are associated with submarine exhalative sedimentation. The gold deposits include the La’erma ore deposit,
the Qiongmo ore deposit and the Yaxiang ore occurrence. They are hosted in the Cambrian silicalite formation composed of black
chert and slate. The presence of typical chert offers important evidence to evaluate the possible submarine exhalative system
and its role in the formation of the gold deposits, which are closely associated with percolation and diffusion in the horizontal,
vertical and axial directions. Element-assemblage zonation is clearly seen due to differences in element concentrations in
different directions. Such a zonation makes gold, selenium, uranium, copper, stibium, molybdenum, mercury, etc. precipitate
in the form of simple or composite orebodies. The establishment of the element-assemblage zonation is highly helpful for evaluating
directly the metallogenesis of gold deposits.
This project is supported financially by the National Natural Science Foundation of China and Sino-Austria International Cooperation
Program (4880099). |
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| Keywords: | silicalite formation strata-bound gold deposit element zonation western Qinling |
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