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CHARACTERISTICS AND GENESIS SIGNIFICANCE OF THE GOLD-BEARING MINERALS OF SHANGBA GOLD DEPOSIT IN LIXIAN COUNTY, GANSU PROVINCE

Kang Xi-feng

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Abstract

Shangba gold deposit of Lixian County is a rocklype gold deposit found recent years in microplate of south Qinling of Gansu Province,which has large scale,principal host rocks to be silicate,great oxidation zone depth,good leachability and high fineness of gold.According to the study of Shangba gold deposit on its ore fabric,mineral assemblage and gold-bearing minerals,the author finds that the main gold minerals are native gold,electrum and kustelite.Moreover,the main gold-bearing minerals are quartz,limonite and clay mineral,furthermore,small amount of carbon contain gold.Modes of gold occurrence are intergranular gold and fissure gold.The formation and enrichment of gold mineral has a close relation with silicification-sulfide metasomatic and infilling effect.The gold genesis is epithermal type gold deposit.

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Shangba gold deposit of Lixian County is a rocklype gold deposit found recent years in microplate of south Qinling of Gansu Province,which has large scale,principal host rocks to be silicate,great oxidation zone depth,good leachability and high fineness of gold.According to the study of Shangba gold deposit on its ore fabric,mineral assemblage and gold-bearing minerals,the author finds that the main gold minerals are native gold,electrum and kustelite.Moreover,the main gold-bearing minerals are quartz,limonite and clay mineral,furthermore,small amount of carbon contain gold.Modes of gold occurrence are intergranular gold and fissure gold.The formation and enrichment of gold mineral has a close relation with silicification-sulfide metasomatic and infilling effect.The gold genesis is epithermal type gold deposit.

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Available abstract

Shangba gold deposit of Lixian County is a rocklype gold deposit found recent years in microplate of south Qinling of Gansu Province,which has large scale,principal host rocks to be silicate,great oxidation zone depth,good leachability and high fineness of gold.According to the study of Shangba gold deposit on its ore fabric,mineral assemblage and gold-bearing minerals,the author finds that the main gold minerals are native gold,electrum and kustelite.Moreover,the main gold-bearing minerals are quartz,limonite and clay mineral,furthermore,small amount of carbon contain gold.Modes of gold occurrence are intergranular gold and fissure gold.The formation and enrichment of gold mineral has a close relation with silicification-sulfide metasomatic and infilling effect.The gold genesis is epithermal type gold deposit.

Key concepts: Geology, Mineral, Limonite, Geochemistry, Fineness, Sulfide minerals, Silicate minerals, Quartz

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CHARACTERISTICS AND GENESIS SIGNIFICANCE OF THE GOLD-BEARING MINERALS OF SHANGBA GOLD DEPOSIT IN LIXIAN COUNTY, GANSU PROVINCE — Research Paper | ScholarLens