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J4 ›› 2012, Vol. 20 ›› Issue (3): 10-17.

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Regional Metallogenic Characteristics of the Au-Ag Polymetallic Deposits in Mapeng Area,Western Hebei Province

CHEN Chao1,2,NIU Shuyin1,2,GAO Yincang3,WANG Baode2,SUN Aiqun2,MA Baojun2,LI Yingjie2,WANG Zili4   

  1. 1.China University of Geosciences,Beijing   100083,China;
    2.Shijiazhuang University of Economics,Shijiazhuang   050031,Hebei,China;
    3.Comprehensive Geological Institute of Shijiazhuang,Shijiazhuang   050081,Hebei,China;
    4.Tianjin North China Geological Exploration Bureau,Tianjin   300170,China
  • Received:2012-02-29 Revised:2012-04-20 Online:2012-06-28 Published:2012-11-12

Abstract:

In recent years,the mineralization-concentrated regions with gold-silver polymetallic deposits in Mapeng area have been famous as superior ore-forming geological conditions in the whole middle segments of Taihang mountains soon.Twenty-five gold-silver polymetallic deposits(occurrences) have been successively discovered,most of them located around in Mapeng granitic intrusion.But currently eight mineral occurrences with exploiting value have been discovered,in which especially the Shihu gold deposit has become the only large ore deposit,so the regional metallogenic regularities and the metallogenic relevance in these deposits should be summarized in order to guide further ore-prospecting work.Through studying regional geological conditions and contrastively analyzing typical ore deposits with Shihu gold deposit on the southeast of Mapeng granitic intrusion and Beiyingxigou silver deposit on the southwest of Mapeng granitic intrusion,this paper finds the deposits (occurrences) surrounding the rock have the great analogues in regional structure,strata,magmatic activity,wall-rock alteration,lode features,etc.and they belong to yanshanian unified metallogenic series events.Based on this,we summarize the regional metallogenic regularities and the regional metallogenic model,and point out the regional prospecting direction.

Key words: Mantle branch, Metallogenic characteristics, Metallogenic model, Au-Ag Polymetallic deposits, Middle section of Taihang mountains, Mapeng area

CLC Number: 

  • P618.51

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