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Gold Science and Technology ›› 2014, Vol. 22 ›› Issue (3): 48-53.doi: 10.11872/j.issn.1005-2518.2014.03.048

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Research on the Ore Characteristics and Occurrence of Gold in  Kangdenongshe Gold Polymetallic Deposit，Qinghai Province

LU Cai1，2   

  1. 1.Qinghai Bureau of Nonferrous Metals Exploration，Xi’ning   810000，Qinghai，China；
    2.Qinghai Aluminum Gold Co.，Ltd.，Xi’ning    810000，Qinghai，China
  • Received:2014-01-15 Revised:2014-03-06 Published:2014-11-04

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Abstract:

Kangdenongshe gold-polymetallic deposit locates at the southeast section of the East Kunlun metallogenic belt，whose gold orebody occurs in the interlayer fracture zone between the lower Permian series of Ma’erzheng Group volcanic and the carboniferous system of Hao’teluowa Group limestone.The ore-controlling structure features NWW and NW ruptures mainly caused by compression-compression and twists.The major ore types are barite-type gold，lead，and zinc ore，while the metallic minerals mainly include pyrite，sphalerite，galena，chalcopyrite，tetrahedrite，bornite，etc.The beneficial components in the ore are Pb，Zn，Ag，Cu，and Ba.The gold minerals are mainly electrum and a small portion of native gold.The occurrence status is mainly inter-granular gold，followed by inclusion gold，and then a little fracture gold.The gold granularity is mainly fine granule visible gold and particle gold which has a close relation with the gangue and is hardly to conduct cleavage.Pure flotation cannot effectively recycle the gold from the ore，so the combination of cyaniding and floatation is recommended.

Key words: ore-controlling structure, ore rocks, intergranular gold, metallurgical performance, east Kunlun metallogenic belt

CLC Number: 

  • P618.51

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