钴的赋存状态及其在找矿和资源评估中的意义

THE OCCURRENCE STATE OF COBALT AND ITS SIGNIFICANCE IN PROSPECTING AND RESOURCE ASSESSMENT

通过分析含钴矿物类型的多样性 ,得出地球系统中钴呈硫化物、类硫化物、铁氧化物和呈类质同像代替铁多种赋存状态及其受晶体化学因素控制特点。基于钴赋存状态的不同 ,提出当前钴的地球化学找矿和矿产资源评估中仅以钴量化丰度值作为化探异常和矿石品位判据的局限性。

Through the analysis on diversity of cobalt mineral, it was obtained that the state of occurrence of cobalt and controlling factor of crystal chemistry in earth system. The state of occurrence of cobalt consists of sulphide, similar sulphide, ferriferous oxide and ferrous isomorphism. Based on the difference of the occurrence state of cobalt, it is limited that the current criterion of geochemical exploration anomaly and ore grade only depends on the abundance of cobalt in prospecting and resource assessment. Additionally, the siqnificance of state abundance of elements was emphasized in providing more useful mineral resource information.