1. Application of the multi-attribute anomaly model for prospecting potential at depth: A case study of the Haiyu Au deposit in the Jiaodong Gold Province, China.
- Author
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Jian, Wang, Lixin, Zhu, Shengming, Ma, Shixin, Tang, Liangliang, Zhang, and Weiwei, Zhou
- Subjects
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MINES & mineral resources , *ORE deposits , *PROSPECTING , *MASS transfer , *GEOCHEMISTRY , *MINERALOGY , *CASE studies , *SULFIDE minerals - Abstract
Exploration geochemistry has become an indispensable tool in the discovery of certain types of mineral deposit. The multi-attribute anomaly model, as a geochemical exploration tool for prospecting potential at depth, is widely applied to indicate the enrichment and depletion of multi-elements coexisting in certain types of deposits. In the Haiyu gold deposit, the system mass-transfer μ anomaly (μ > 0.15) represents the zones affected by element exchange and fluid migration during metallogenic processes. Values of ΔC Na O-A < −20 kg and μ Na < −50% represent fluid activity zones, while ΔC S O–A > 1000 g and ΔC Na O-A < −20 kg suggest the existence of mineral sulfides. The correlations among S-FeO-Au indicate fertile rocks and barren rocks in different locations. The positive anomalies of pathfinder elements indicate the occurrence of numerous polymetallic sulfides and the enrichment of multi-elements coexisting in the Haiyu gold deposit. The deeper and larger multi-attribute anomalies in the No. 30 profile of the Haiyu Au deposit indicate that the prospecting potential at depth mainly focuses on the extension of the footwall along the NE-NNE Sanshandao-Cangshang Fault (F3). In summary, the Haiyu Au deposit has great prospecting potential for additional deep-seated orebodies. • We have studied the characteristics of alteration and mineralization zoning of Jiaojia-type gold deposit in detail. • We have used mass transfer concepts and equations to explain the observed chemistry and mineralogy associated with the Haiyu Au deposit. • We have established suitable geochemical exploration indicators of Jiaojia-type gold deposit by the application of the multi-attribute anomaly model. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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