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Metal Mine ›› 2013, Vol. 42 ›› Issue (08): 80-83.

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Geochemical Characteristics of Trace Elements in Fengcun Lead-zinc Deposits

Li Xingyuan1,2,3,Zhou Yongzhang1,2,3,An Yanfei1,2,3,Lu Wenchao1,2,3,Bai Mingliang1,3   

  1. 1.Guangdong Provinical Key Laboratory of Mineral Resources and Geological Processes;2.Department of Earth Sciences,Sun Yat-sen University;3.Center for Earth Environment & Resources,Sun Yat-sen University
  • Online:2013-08-15 Published:2013-09-27

Abstract: According to the survey and analysis of trace elements in Donggangling limestone of Fengcun lead-zinc mine,the results show: Mn content ranges from 208.3×10-6 to 3 191×10-6,with the average Mn content of 1 027.42×10-6;Sr content ranges from 28.69×10-6 to 488.9×10-6,with the average Sr content of 300.45×10-6.w(Sr) /w (Ba)>1,it may be the normal marine sediments.And,w(Sr)/w(Cu) is generally greater than 10,indicating that the sedimentary of limestone is in a closed,dry,anoxic reduction environment.The Pb,Zn contents are significantly higher than the crustal abundance.It is inferred that Donggangling limestone is the main source of the ore.Besides,based on the w(U)/w(Th)>1 in some ore samples,it indicates that Fengcun lead-zinc deposit has the characteristics of sedimentary superimposed hydrothermal reformation type deposit,resulting from the hydrothermal reformation at latter period.

Key words: Fengcun lead-zinc deposits, Donggangling limestone, Trace element, Sedimentary environment, Hydrothermal reformation