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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12245

Title: Evaluation of Placer Deposit Within Ghana a Case Study of the Kwabeng Placer Gold Deposits North Western Flank of Atewa Range, Eastern Region, Ghana
Authors: Nkrumah, Richmond
Agyemang, Kofi
Foli, Dr. Gorden
Gawu, Prof. Simon K.Y
Nude, Prof. Prosper M.
Keywords: Placer deposit
Resource Evaluation
Atewa Range
Issue Date: 11-Nov-2019
Publisher: International Journal of Engineering Research & Technology
Citation: International Journal of Engineering Research & Technology, Vol. 8 Issue 11, November-2019
Abstract: The estimation of Mineral Resources/Reserves (MR) together with the quantification of the distribution of metallurgical attributes provide strong evaluation of the large alluvial gold deposits within Kwabeng and its surrounding , which occurs along the north western flank of the famous Atewa Range. This reduces the risk arising from uncertainties within the ore body as far as geological and metallurgical information are concern and also improve decision making process during the production stage of the mining project. Hand dug Pits data formed the basis for the estimation of the MR as well as the determination of the spatial distribution of the metallurgical parameters of the Kwabeng deposits. A typical grid density of 200m x 50m was used for the pitting. Detailed logging of pit samples together with processing provided first-hand information concerning the metallurgical behavior of the gold bearing gravels and subsequent distribution of these parameters. The estimation of the MR have been based on an initial estimation of the gold grade and gravel section using the inverse distance weighting (IDW) technique and subsequent estimation of the resources using the volume and mean grade of the ore. A total volume of 19328000m3 gold bearing gravels were estimated at average grade of 0.46g/m3 and fine ounces of 261,728 oz based on the gold fines of 920 for the alluvial gold within the area. The gold within the study area are usually coarse in nature with majority of the coarse gold occurring at the upstream of the drainages in the area. Clayey materials also represent large portion of the gold bearing gravels in almost all the sampled areas.
Description: An article published by International Journal of Engineering Research & Technology
URI: http://hdl.handle.net/123456789/12245
Appears in Collections:College of Engineering

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