Techno-economic parameters related to the Bunardzik Cu-Au ore body, Buchim copper mine, Eastern Macedonia

Gjorgiev, Lazar and Serafimovski, Dalibor and Tasev, Goran (2023) Techno-economic parameters related to the Bunardzik Cu-Au ore body, Buchim copper mine, Eastern Macedonia. Natural Resources and Technology, XVII (1). pp. 4-11. ISSN 1857-6966

Text 1_TECHNO-ECONOMIC PARAMETERS RELATED TO THE BUNARDZIK Cu-Au ORE_2023.pdf - Published Version Download (1MB)

Abstract

The calculated ore-bearing coefficient in the Bunardzik ore body was 0.82%, meaning that within the ore body boundaries only 18% of the mass is not mineralized somehow, which is highly compatible with the remaining three ore bodies within the Buchim porphyry copper mine. The calculated value of the variation coefficient (V) has shown a value of 54% that is in the range of 43- 100%, which displays that this ore body belongs to the third group of ore bodies with uneven
mineralization. Average copper, gold and silver concentrations were determined as 0.30% Cu, 0.35 g/t Au and 1.0 g/t Ag, respectively. Minimal economic content (MEC) within the Bunardzik ore body, as a representation of this kind of mineralization, was determined as 0.2099% Cu. In a similar manner was calculated the lowest copper boundary (cutoff grade), which has shown a value of 0.1399% Cu thus
allowing a certain decrease in the contents of the exploited ore. Also, the so called copper monometal values were calculated, which included the influence of the present gold and silver in the ore. The calculated copper monometal was set at relatively fair 0.399% Cu that represents solid mainstay for exploitation of copper in these low percentage ores. Thee calculated ore reserves in this particular ore
body were 24 042 751 t of ore with 0.257% Cu, 0.35 g/t Au and 0.91 g/t Ag and increased mine life for additional 4.4 years.

Item Type:	Article
Subjects:	Natural sciences > Earth and related environmental sciences
Divisions:	Faculty of Natural and Technical Sciences
Depositing User:	Lazar Gorgiev
Date Deposited:	29 Aug 2023 12:25
Last Modified:	29 Aug 2023 12:25
URI:	https://eprints.ugd.edu.mk/id/eprint/32106

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