1503_651674.pdf — page 20

Chen et al.: Metallogenic setting and material source of Caihong copper-lead-zinc polymetallic deposit 
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APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 15(3): 651-674. 
http://www.aloki.hu ● ISSN 1589 1623 (Print) ● ISSN 1785 0037 (Online) 
DOI: http://dx.doi.org/10.15666/aeer/1503_651674 
 2017, ALÖKI Kft., Budapest, Hungary 
derived from magmatic sulfur. The source region that can supply the ore-forming 
materials shall be later than plate subduction and the deformation and metamorphism, 
and shall have proper distance and magmatic hydrothermal migration pathway. The 
regional stress shall take the tension stress as primary. Evidences suggest that Zhongbao 
granite body is formed in the collision-extension transformation stage of the plates in 
the Early Permian (Chen et al., 2013), which is later than the time of regional 
metamorphism and deformation (Wu et al., 1992). Moreover, Caihong ore district has 
obviously W geochemical anomaly, and has obviously north-east trending distribution 
with Cu, Pb, Zn elements (Xue et al., 2012), indicating that north-east trending fault in 
ore district could be the migration pathway of magmatic hydrothermal. In addition, the 
content characteristic of REE in veined ore sulfide is obviously similar with Zhongbao 
granite body. According to the above evidences, it can be concluded that the intrusion of 
Zhongbao granite body and subsequent hydrothermal activity in Early Permian is the 
main cause of forming late veined ore body, which provide the source of ore-forming 
sulfur and main fluid. The hydrothermal solution migrates along the late NE trending 
extension fault and activates ore-forming elements in host rock, forming the veined Cu, 
Pb, Zn ore body in fault development part. As the main structure activities in this stage 
region has been finished, the late veined ore body has been kept better and no 
deformation and metamorphism. 
Conclusions 
The following conclusions are obtained through above discussion: 
1. The genetic type of Caihong Cu, Pb, Zn polymetallic deposit is volcanic 
exhalation sedimentary- magmatic hydrothermal superimposed type. 
2. The first metallogenic stage is formed in the oceanic crust subduction island-arc 
rift setting in the Middle-Late Silurian. Metallogenic sulfur is derived from the mixing 
of continental marginal arc volcanic magmatic sulfur and sulfur reduced by seawater 
sulfate in the same period, and ore-forming fluid is derived from the mixing of 
submarine hydrothermal solution and volcanic magmatic water.  
3. The second metallogenic stage is formed by the invasion of Zhongbao granitic 
body and late magmatic hydrothermal action in the collision-extension transformation 
stage of the plates in Early Permian. Metallogenic sulfur is derived from magmatic 
sulfur of Zhongbao granite, and ore-forming fluid is derived from the mixing of deep 
magmatic water and atmospheric precipitation. The genetic type of this stage is the 
hydrothermal filling metasomatic type after magma stage. 
Acknowledgements. This study was financially supported by the project of Metallogical condition 
research and ore prospecting target area evalution of copper-gold-iron metallogenic belt in Kuruktag 
(2011BAB06B04) .We appreciate the engineers of Caihong deposite for their help and fruitful discussion 
during our field investigations. 
REFERENCES 
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An, W., Cao, Z.M., Zheng, J.B., Liu, J., and Chen, M. (2003): The development of study 
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Science 18: 773-782. (in Chinese with English abstract) 
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Barriga, F.J., and Kerrich, R. (1984): Extreme 18O-enriched volcanics and 18O-evolved