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《Acta Geologica Sichuan》 2010-03
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Migration Forms and Ore-forming Mechanism for Cobalt

ZHENG Dazhong ZHENG Ruofeng(Chengdu Comprehensive Rock and Mineral Testing Center,BGEEMRSP,Chengdu,Sichuan,610081)  
The study of physical and chemical properties of cobalt chemical compounds,chemical compositions of fluid inclusions from cobalt deposits,chemical compositions of cobalt minerals and associated minerals indicates that cobalt was migrated as hydrides,hydroxides,Au-bearing hydrides,hydroxyl compounds and carbonyl-hydroxyl compounds.These compounds were formed in high temperature and high pressure conditions rich in H and CO,and ascended along fractures and fissures to upper crust and decomposed,oxidized,vulcanized and deposited thanks to decrease in pressure and temperature and increase in oxygen fugacity and escape of H2 and O,forming cobalt deposit.
【CateGory Index】: P618.62
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【Citations】
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