[an error occurred while processing this directive] Global Geology 2021, 24(1) 15-22 DOI:     ISSN: 1673-9736 CN: 22-1371/P

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Article by Tian L
Article by Yu YAXH
 
 
 
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 Three - dimensional geological modelling and direction of hydrothermal alteration of Horne deposit, Blake River Group,Quebec,Canada
 TIAN Liya,YU Yunliang and XU Haibo
 College of Earth Sciences,Jilin University,Changchun 130061,China
Abstract:  The Horne deposit with rich Cu and Au in Noranda region of Black River Group in Quebec has high economic significance. Current researches on Horne deposit are mostly based on two-dimensional maps and statistical data. It is hard to reflect the spatial structure and characteristics of Horne orebody directly. In this paper,GIS was used to digitize the mining plan-view maps at different depths,stope maps,the boundary of the massive sulfide in drilling trajectories as well as the grade data of Au and Cu of Horne deposit. Meanwhile,the authors established the grade attribute database. Subsequently the three-dimensional ( 3D) geological model and grade attribute model of Horne orebody were established by Geological Object Computer Aided Design ( GOCAD) . Positions of two vents and directions of hydrothermal alteration in Horne deposit were inferred based on the property of the major fault,characteristics of hydrothermal alteration,the enrichment morphology and spatial distribution of high-grade Cu in the Cu attribute model.
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