Abstract: In this article factors that affect the comminution behavior of heterogeneous diorite rocks obtained from two quarry locations in Botswana were investigated. Diorite rocks are in great abundance in Botswana and they are increasingly viewed as a relatively inexpensive and reliable alternative construction material to sustain the infrastructure growth in Botswana. The diorite rock samples collected from both the Central and North-Eastern districts were studied for structural similari...
Abstract: Coal pyrolysis and gasification are promising options for the future of Botswana as the country has large coal reserves with severe limitations in terms of export options. Coal characterization facilities will be required in order to harness its full potential and methods such as proximate, ultimate and chemical structure analysis (FTIR, Raman spectroscopy and X-ray diffraction techniques) were investigated. The paper presents a brief history of pyrolysis and gasification, typical ...
Abstract This study looked at the participation of women in quarry mine pits of Ebonyi state and their well-being , covering the three senatorial zones of Ebonyi north, Ebonyi central and south. In these zones, six (6) local government areas were covered. The involvement of these women at the quarry mine pits were investigated through a number of issues which include the factors that lead them to participate in the stone mine pits whether on grounds of poverty, lack of education, nearness of ...
ABSTRACT Historically, the operations of Goldfields Ghana, Damang Mine had generated grade control models using smallest mining unit (SMU) of 2 m x 5 m x 3 m. Management has introduced the use of larger excavators example the Bucyrus RH 90C and RH120E O&K with bucket size 3.5 m hence, there is therefore the need to review the SMU being used for various pits for the Grade Control Modeling Procedures which will relate to the ability of the equipment to select ore or waste with minimal dilution...
ABSTRACT Geochemical mapping and multivariate factor analysis were performed on multi-element soil geochemical data from Bogosu area in southwestern part of Ghana. Multi-element soil geochemical data have been used in soil geochemistry for the characterization of underlying lithology as their surface expressions are often based on the elements’ spatial distribution (Grunsky and Smee, 2003). The objectives of the study were to determine the spatial distribution of the elements, determine el...
ABSTRACT This study considered the mineralogical, elemental composition in form oxides and engineering properties such as particle size, specific gravity, bulk density; water content and atterberg limits of two kaolin deposits in Kpankorogi in Edu Local Government of Kwara State and in Ijero-Ekiti in Ijero-Ekiti Local Government Area, Ekiti State.This is with a view to assessing their potentials for Various industrial applications. The analyses includes X-Ray Diffraction (XRD and X-Ray Fluo...
ABSTRACT Green gram(Vigna radiataL.) has recently become an important crop in Kitui County because of its high economic returns and short growing season.The main objective of this study was therefore to develop a GIS-based Multi-criteria analysis for Green gram production in Kitui County using Geographic Information Sytem (GIS) based multi-criteria evaluation. Three main criteria were selected for analysis (soil, climate and topography) and 8 sub criteria (soil texture, soil dept...
ABSTRACT The Mwitika-Makongo research area occurs within the Neoproterozoic Mozambique metamorphic belt in Kenya and is located in Kitui East sub-county of Kitui County. The area is bounded by longitudes 38° 18'E and 38° 26'E and latitudes 1° 22'S and 1° 32'S. This area is easily accessed from the Nairobi-Thika-Kitui-Zombe road or the Nairobi –Machakos-Kitui-Zombe road. From previous geological works, it had been established that several mineral resources of economic potential like iron...
ABSTRACT Gold Fields Ghana Limited (GFGL) has several gold mining concessions situated in Ghana with granted Mining Leases of which the Teberebie Mine is an essential part and still in production. The Teberebie Mine which is found within the Takwaian district is located some 70 km north of the city of Takoradi, and 10 kilometres south-west of Tarkwa. The Mantraim central project known as "Mantraim Central" is a part of the main Mantraim project which has been drilled extensively to grade con...
ABSTRACT Combinations of geological, geophysical and geochemical techniques have been used to explore gold deposits at Misaki within the Iramba-Sekenke Greenstone Belt (ISGB) in Singida region. The Misaki area is occupied by different rocks including homogeneous coarse-grained granite containing numerous xenoliths (> 5 vol. %), tonalite, K-rich granite and pegmatite, and dolerite dykes. All granitic rocks have been intruded by dolerite dykes, cut by epidote veins and are found juxtaposed to a...
Abstract In this study, sodium cyanide leaching technology has been used to recover gold from tailings that are used by Mawelo small scale miners, located in Chunya district, Mbeya region, Tanzania. The sample collected was sent for analysis of mineralogical composition and average particle size. The fractions retained on each sieve, which ranged 180 – 500 μm were used in the leaching experiments. The leaching was implemented using sodium cyanide with concentration in the range of 500 – ...
ABSTRACT The 22.5 km2 Kobada project which is located in the Kangaba Cercle of the Koulikouro region of Mali, is owned and operated by African Gold Group Inc. (AGG), a Canadian junior exploration company (Fig. 1.1 shows perimeter for 22.5 km2; fig. 1.9 shows perimeter for consolidated permit of 215 km2). Notably the permit hosts a soil anomaly greater than 500 ppm arsenic that extends over 12 km of strike length and one kilometre of width, which is offset to the west of extensive artisanal su...
ABSTRACT The main aim of this dissertation was to identify pathfinder elements for gold and generate new gold targets for further exploration at Chirano Gold Mining Area. A geochemical data was generated from 521 soil samples which were analysed for 51 elements and evaluated using multivariate statistical methods. Principal Components and Factor Analyses were used to reduce the data into two groups and Cluster Analysis conducted to find element associations hence pathfinders for gold. Ano...
ABSTRACT Economic gold mineralization at Amoanda project area is hosted mainly in the footwall quartzite of the Banket series of the group. Igneous rocks generally are barren in both Amoanda project area and Greater Damang project area. However, core logs and sections from extensive deep drilling at Greater Damang has identified a deep-seated mineralized diorites body whereas igneous intrusive rocks in Amoanda which is suspected to be having similar characteristics show no gold mineralization...