Assessment of viability of an ore deposit depends on the accurate estimation of the quantity
and quality of the commodity, which is a function of the sample data quality. SAMEVA Limited,
a fully owned Ghanaian company, wants to acquire Kojina Gold deposit as an investment
opportunity in the gold industry of Ghana. The decision to invest in the mining industry
comes with huge capital requirement and the associated risks are very high. The major
objectives with regards to evaluating the viability of the deposit are; to define appropriate
mineralized zone based on available drill core data, use an appropriate estimation method to
create a model that accurately predicts grade and tonnes and finally use a suitable financial
model to establish the viability or otherwise of the Kojina project. An Ordinary krigged
geostatistical model was used to estimate the quantity and quality of gold within the deposit
based primarily on diamond drill holes. The Net Present Value (discounted cash flow) method
of financial analysis was used to arrive at the investment decision on the Kojina deposit.
Capital and Operating Costs estimates used were based on benchmarking of adjacent mine
operations within the catchment area of Kojina. Using appropriately planned drilling and
representative sampling as well as predominant use of diamond core gives more accurate
information with no contamination and has structural orientation which allows for better
geologic and structural mapping therefore helping define the mineralization zones more
accurately. The mineralization zone defined based on reverse circulation holes gave
37,413,998 tonnes at 1.47g/t whereas that based on the diamond holes gave 26,674,888
tonnes at 1.57g/t. Again, based on the more accurate deductions from diamond holes, the NetPresent value of the project was estimated at USD 187,796,325 with a payback period of three
CDR, C (2021). ESTABLISHING THE KOJINA GOLD DEPOSIT AS A VIABLE MINING VENTURE FOR SAMEVA LTD, GHANA. Afribary.com: Retrieved April 15, 2021, from https://afribary.com/works/establishing-the-kojina-gold-deposit-as-a-viable-mining-venture-for-sameva-ltd-ghana
Coalition, CDR. "ESTABLISHING THE KOJINA GOLD DEPOSIT AS A VIABLE MINING VENTURE FOR SAMEVA LTD, GHANA" Afribary.com. Afribary.com, 01 Apr. 2021, https://afribary.com/works/establishing-the-kojina-gold-deposit-as-a-viable-mining-venture-for-sameva-ltd-ghana . Accessed 15 Apr. 2021.
Coalition, CDR. "ESTABLISHING THE KOJINA GOLD DEPOSIT AS A VIABLE MINING VENTURE FOR SAMEVA LTD, GHANA". Afribary.com, Afribary.com, 01 Apr. 2021. Web. 15 Apr. 2021. < https://afribary.com/works/establishing-the-kojina-gold-deposit-as-a-viable-mining-venture-for-sameva-ltd-ghana >.
Coalition, CDR. "ESTABLISHING THE KOJINA GOLD DEPOSIT AS A VIABLE MINING VENTURE FOR SAMEVA LTD, GHANA" Afribary.com (2021). Accessed April 15, 2021. https://afribary.com/works/establishing-the-kojina-gold-deposit-as-a-viable-mining-venture-for-sameva-ltd-ghana