Techno-economic parameters of the Northeastern part of Central Part Ore Body, Bučim Copper Mine, Republic of North Macedonia

Tasev, Goran and Filev, Kiril and Serafimovski, Dalibor and Serafimovski, Todor (2021) Techno-economic parameters of the Northeastern part of Central Part Ore Body, Bučim Copper Mine, Republic of North Macedonia. Geologica Macedonica, Special Issue No.5 (5). pp. 173-178.

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Abstract

Calculated ore-bearing coefficient in the Northeastern part of the Central Ore Body, Bučim Mine was 0.51%, meaning that within the ore body boundaries 49% of mass is not mineralized somehow, which is slightly different than the remaining three ore bodies within the Bučim porphyry copper mine. The calculated value of variation coefficient (V) has shown value of 58.65% that is in the range of 43–100%, which
displays that this ore body belongs to the third group of deposits with uneven mineralization. An average copper and gold concentrations were determined as 0.229% Cu and 0.232 g/t Au, respectively. Minimal economic content (MEC) within the Northeastern part of the Central Ore Body, as represent of this kind of mineralization, was determined as 0.205% Cu. In similar manner was calculated the lowest copper boundary (cutoff grade), which have shown value of 0.127% Cu and thus allowing certain decrease of contents in exploited ore. Also, there were calculated so called copper monometal
values, which included influence of the present gold in the ore. Calculated copper monometal was set at relatively fair 0.2388% Cu that represents solid mainstay for exploitation of copper in these low percentage ores. Calculated ore reserves in this particular part of the Central Part ore
body were 12 303 965 t of ore with 0.229% Cu, and 0.232 g/t Au and increased mine life for additional 2.15 years.

Item Type:	Article
Subjects:	Natural sciences > Earth and related environmental sciences
Divisions:	Faculty of Natural and Technical Sciences
Depositing User:	Goran Tasev
Date Deposited:	29 Oct 2021 08:56
Last Modified:	29 Oct 2021 08:56
URI:	https://eprints.ugd.edu.mk/id/eprint/28658

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