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J4 ›› 2012, Vol. 20 ›› Issue (4): 96-103.

• article • Previous Articles     Next Articles

Analysis on the Mineralization Structure  of Gold Orefield in Xiaoqinling Midle-orebelt

WANG Xingcun1，NIU Shuyin2，3，YAN Jianshe1，SUN Weizhi1，SUN Aiqun2，FENG Jianzhi1，CHEN Chao2，3，XU Jianchang1，WANG Shequan1，CUI Xiexiang1，WANG Zheng2，LI Bin2   

  1. 1.Key Laboratory of Gold and Silver Polymetallic Metallogenic Series and Deep Prediction of Henan Province，No.1 Geological Team of Henan Geological Exploration and Exploitation Bureau，Luoyang   471023，Henan，China；
    2.College of Resources，Shijiazhuang University of Economics，Shijiazhuang   050031，Hebei，China；
    3.College of Earth Sciences and Resources，China University of Geosciences （Beijing），Beijing   100083，China
  • Received:2012-04-12 Revised:2012-06-28 Online:2012-08-28 Published:2013-01-23

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Abstract:

The middle belt of Xiaoqinling gold field is ore-bearing fluid penetration ductile and brittle shear zone of Laoyachan antiform wing formation of auriferous quartz veins.It is not only of long extension，larger extending  and wide veins.Distribution has large and medium-sized gold mine of Wenyu，Dongchuang，Yangzhaiyu，Chang’ancha，Jindongcha and other.We reviews background of metallogenic geological，analyze the characteristics of ore-controlling structures，discuss the ore-forming.The studies indicate that ore-forming fluid comes mainly from deep source，through the multistage evolution of mantle plume，penetration to the ductile shear zone of accumulation and mineralization，formation of gold-bearing quartz veins.Even a mother lode gold reserves to the whole mining area from 50% to 90%.We recommended not to evaluate the scale of ore deposits according to mining right，but to the natural distribution，including guiding mining deep and peripheral prospecting.

Key words: Mineralization, Ore-controlling structure, Mantle branch structure, Resource appraisal, Western Henan

CLC Number: 

  • P618.51

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