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- W2093719892 abstract "Calculated ore-bearing coefficient in the Vrshnik ore body was 0.78%, meaning thatwithin the ore body boundaries only 22% of mass is not mineralized somehow, which ishighly compatible with remaining three ore bodies within the Buchim porphyry coppermine. The calculated value of variation coefficient (V) has shown value of 70% that isin the range of 43-100%, which displays that this ore body belongs to the third group ofdeposits with uneven mineralization. An average copper, gold and silver concentrationswere determined as 0.305% Cu, 0.18g/t Au and 0.91 g/t Ag, respectively. Minimaleconomic content (MEC) within the Vrsnik ore body, as represent of this kind ofmineralization, was determined as 0.160% Cu. In similar manner was calculated thelowest copper boundary (cutoff grade), which have shown value of 0.138% Cu and thusallowing certain decrease of contents in exploited ore. Also, there were calculated socalled copper monometal values, which included influence of the present gold and silverin the ore. Calculated copper monometal was set at relatively fair 0.399% Cu thatrepresents solid mainstay for exploitation of copper in these low percentage ores.Calculated ore reserves in this particular ore body were 13 577 267 t of ore with 0.305%Cu, 0.18 g/t Au and 0.91 g/t Ag and increased mine life for additional 6 years." @default.
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- W2093719892 date "2014-06-20" @default.
- W2093719892 modified "2023-10-14" @default.
- W2093719892 title "TECHNO-ECONOMIC PARAMETERS RELATED TO THE VRSHNIK CU-AU ORE BODY, BUCHIM COPPER MINE, EASTERN MACEDONIA" @default.
- W2093719892 doi "https://doi.org/10.5593/sgem2014/b13/s3.080" @default.
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