Diagenetic-metallogenic ages of pyritic cherts and their implications in Mojiang nickel-gold deposit in Yunnan Province, China
作者: Weixuan FangRuizhong HuGuiqing XieWenchao SuLiang Qi
作者单位: 1Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences
2Northwest Geological Exploration Bureau, Chinese National Nonferrous Metal Corporation
刊名: Chinese Science Bulletin, 2001, Vol.46 (21), pp.1823-1827
来源数据库: Springer Journal
DOI: 10.1007/BF02900560
关键词: metallogenic ageage by Sm-Nd isochronal methodage by Rb-Sr isochronal methodMojiang nickel-gold deposit
英文摘要: Abstract(#br)Diagenetic-metallogenic ages of pyritic cherts formed by the syn-sedimentation of hydrothermal vent and ages of the Jinchang Rock Formation in the Mojiang large nickel-gold deposit in the Ailaoshan gold metallogenic belt have been discussed on the basis of chronology of isotopic geochemistry. Nickel-gold-bearing pyritic cherts in the mining were formed by syn-sedimentation of hydrothermal vent in the Late Devonian, i.e. age by Sm-Nd isochronal method ( t ) = (358±8.6) (2σ) Ma and age by Rb-Sr isochronal method ( t ) = (354.7±0.72) (2σ) Ma. On the other hand, deep-water cherts from the Jinchang Rock Formation of the Upper Devonian in the area were initiated at the same time; that is, age by Sm-Nd isochronal method ( t ) = (359±21) (2σ) Ma and age by Rb-Sr isochronal method ( t...
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影响因子:1.319 (2012)

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关键词翻译
关键词翻译
  • metallogenic 金属成矿的
  • China 中国
  • deposit 沉积
  • their 他们的
  • nickel