Serafimovski, Todor and Filev, Kiril and Tasev, Goran and Stefanova, Violeta (2014) Techno-economic parameters related to the Vrshnik Cu-Au ore body, Buchim copper mine, Eastern Macedonia. International Multidisciplinary Scientific GeoConference (SGEM 14), III (1). pp. 615-622. ISSN 1314-2704
Preview |
Text
Complete paper Serafimovski et al Buchim Vrshnik 2014.pdf Download (2MB) | Preview |
Abstract
Calculated ore-bearing coefficient in the Vrshnik ore body was 0.78%, meaning that
within the ore body boundaries only 22% of mass is not mineralized somehow, which is
highly compatible with remaining three ore bodies within the Buchim porphyry copper
mine. The calculated value of variation coefficient (V) has shown value of 70% 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, gold and silver concentrations
were determined as 0.305% Cu, 0.18g/t Au and 0.91 g/t Ag, respectively. Minimal
economic content (MEC) within the Vršnik ore body, as represent of this kind of
mineralization, was determined as 0.160% Cu. In similar manner was calculated the
lowest copper boundary (cutoff grade), which have shown value of 0.138% 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 and silver
in the ore. Calculated copper monometal was set at relatively fair 0.399% Cu that
represents 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.
| Item Type: | Article |
|---|---|
| Subjects: | Natural sciences > Earth and related environmental sciences |
| Divisions: | Faculty of Natural and Technical Sciences |
| Depositing User: | Goran Tasev |
| Date Deposited: | 25 Jun 2014 09:41 |
| Last Modified: | 25 Jun 2014 09:41 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/10176 |
Actions (login required)
 |
View Item |