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Gold Science and Technology ›› 2014, Vol. 22 ›› Issue (6): 18-25.doi: 10.11872/j.issn.1005-2518.2014.06.018

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Study on Geology，Geochemistry and Its Metallogenic Significance of Baimaya Gold Deposit

ZHANG Zhijun1，GONG Qingjie2，LIU Chenxi3，SHEN Liusheng1   

  1. 1.Tianjin North China Geological Exploration Bureau，Tianjin   300181，China；
    2.China University of Geosciences，Beijing   100083，China； 
    3.No.514 Geological Party of North China Geological Exploration Bureau，Chengde   067000，Hebei，China
  • Received:2014-06-30 Revised:2014-08-10 Online:2014-12-28 Published:2015-01-14

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Abstract:

The Baimaya gold deposit located in north of the Kang-Dian was typical quartz vein-altered rock type gold deposit in the Kangding complex rock mass.Old metamorphic crystalline complex mining area exposed basement and formed strong blocky rock rigidity mainly with amphibolite plagioclase，spun silk the schist as well as tectonic schist，etc.Key component of ore mineral was quartz that accounted for more than 90%，and contained a small amount of sericite，pyrite and other sulfide minerals.Fracture of mining area was seemed to be the SN direction with brittle-ductile shear fracture，which displayed various characteristics of the activity.Through studying the main elements of ore deposit geochemistry，rare earth elements，sulfur isotope，and fluid inclusion，obviously，surrounding rock and altered rock of the Baimaya gold deposit in rare earth elements distribution curve belonged to the right type.δ34S of the gold deposit varied between 2.1‰ and 4.4 ‰ with the average of 1.6‰，and containing fluid inclusions in ore was characterized by rich CO2 The Baimaya gold deposit presented fault development with metallogenic substances brought by the deep magmatic fluid that could improve the surrounding rock and enrichment，which was of great significance for further research and the ore-prospecting work in the future.

Key words: geochemistry, ore forming fluid, Baimaya gold deposit, Kangding ore field

CLC Number: 

  • P618.51

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