Abstract: The Banana Zone Cu-Ag Prospect is within the SW-NE trending Ghanzi-Chobe Belt (GCB), which extends from the Namibia-Botswana border in the south to Shinamba Hills in the north near the Botswana-Zambia border. The Banana Zone is also part of the Ghanzi Project owned by Khoemacau Copper Mining and situated between the Ghanzi and Maun townships, in Botswana. The Banana Zone has inferred resource of over 225.4 million metric tonnes (Mt) grading 0.64% Cu and 8.1 g/t Ag. The GCB consists...
Abstract: Parental magma composition to layered ultramafic to mafic intrusions are commonly studied using rocks occurring along their contact with the surrounding country rock. These include sills, dykes and/or rare chill margins. In comparison to the well-studied ~2.05 Ga Bushveld Complex layered intrusion, no study is available on the parental magma composition of the Molopo Farms Complex layered intrusion in southern Botswana. With a size, approximately 1/3rd of the Bushveld Complex, mafi...
Abstract: Internal erosion and development of seepage pathways is an ever present concern in earth fill dams, and are a major reason for many dam failures. Internal erosional progresses that are responsible for many dam failures are usually difficult to detect at their onset using the currently in-built monitoring systems that are installed during dam construction. Importantly, increased seepage in dams can only be observed after manifesting at the surface, at which time the integrity of the...
Abstract: The NW trending Archean Tati Greenstone Belt is located in the southwestern part of the Zimbabwe Craton, in northeastern Botswana and consists of mafic to felsic volcanic rocks and metasediments. All rocks in the TGB have undergone greenschist facies metamorphism at 2630 ± 70 – 2570 ± 70 Ma and intrusion of granitoids that comprises of granodiorite, tonalites, quartz diorite and monzonite occurred at 2.65- 2.73 Ga. The TGB is host to numerous Au deposits including from NW to...
Abstract: The Moiyabana Coalfield, located ~80 km west of Mahalapye village in the South Eastern Kalahari sub-basin, is one of the potential areas for coal mining in Botswana. This project discusses the petrographic and geochemical results of a detailed investigation carried out on a borehole core of the Moiyabana area, eastern Botswana. Geologically, the Moiyabana coal seams occur in sedimentary rocks of Permian Age and are hosted in the Karoo Supergroup sequence. All coal seams are found w...
Abstract: This study focuses on using electrical resistivity tomography (ERT) to map coal seam and associated structures found within the seams in parts of the Mmamabula Coal Field- central Botswana. The coals of this area belong to the Ecca Group’ s Mmamabula Fm and Mosomane Fm. Several major faults are reported to have affected the Karoo strata in the Mmamabula area. The northern limit of the coalfields is defined by the ENE-trending Zoetfontein Fault which has a downthrow to the no...
Abstract: The Motloutse Complex to the southwestern margin of Zimbabwe Craton is a medium-grade terrane in northeastern Botswana. Some studies consider it as part of the Limpopo Complex high-grade terrane between the Kaapvaal and Zimbabwe cratons, while others argue it as an allochthonous terrane separate to the Limpopo Complex. A number of shear zones are postulated to delineate the extents of Motloutse Complex. Except the northern margin (the Shashe shear zone), the rest of the terran...
Abstract: Expansive soils tend to be fairly high in natural fertility and their unique morphology makes them quite interesting. Soils found in Serowe, Central Botswana, commonly exhibit variable degrees of periodic shrinking and swelling which often leave visible cracks and sometimes undulating micro-topography (gilgai) on the landscape. The use of expansive soils is often constrained due to severe management problems often associated with their physico-chemical properties. Therefore, basic ...
Abstract: The focus of this thesis was on the comparison in breakage behavior of heterogeneous diorite rock obtained at two separate quarry locations in Botswana. There are many problems associated with inefficient size reduction of quarry stones. Generally, when the material is left over sized, it will fail in its downstream operation because during separation/ screening the product will not pass to lower screens and it will require a secondary crushing activity resulting in a waste of ener...
With the emphasis that the study area is a highly mineralized area with high potential for future mining projects due to large iron ore reserves, a total of 21 soil surface samples were investigated in terms of toxic heavy metals (Pb, Cr, Ni, Cu, Zn, Co, and As) using ICP-OES to determine the metal concentrations, define the geochemical baseline during pre-mining conditions, decipher metal sources and their interrelationships using multivariate statistical analysis, and evaluate the contamina...
In thin section preparation, we normally prepare a rock sample of any type and polished it to reach a level of 0.03mm on a polished glass slide to get a thin slice. There are alot of processes that leads to producing a thin slice of a rock sample you will uncover those steps in this article and how they apply to the study of rocks because physical identification of rocks doesn't reveal the birefringence, cleavage, pleochroism, relief, interference color etc. Of a rock sample
ABSTRACT Facies geometry, stratigraphic configuration, structural style, hydrocarbon type and distribution within the paralic Agbada Formation of Middle to Late Miocene age across several fields in the Eastern part of the Coastal Swamp depo-belt were studied using regional 3D seismic, wire-line well logs and biostratigraphic data. The study involved analyses of sequence stratigraphic framework across nine fields using information obtained from twenty- four wells. Ten major stratigraphic bou...
The sandstone in Adu-Achi and environs were subjected to sieve analysis. The aim of this the study is to determine the textural characteristics and depositional environment of the sediments in the Ajali Sandstone. The results of grain size analysis showed that the sandstone range from fine to coarse grained, moderately sorted, mostly platykurtic and negatively skewed indicating sand of fluvial origin ranging from channel floor, point bar to braided rivers, also suggesting moderately to high/t...
The techniques of aeromagnetic data analysis were employed to elucidate depth to magnetic basement sources, leadzinc (pb-zn) mineralisation and heat flow in parts of Southern Benue Trough. The study area covers an area extent of about 18,150 sq. Km, latitude 05 0 30’N - 06 0 30’N and longitude 007 0 30’E - 009 0 00’E. The digital aeromagnetic data consisting of Total Magnetic Intensity with geospatial attributes covering six (6) sheets 302 (Nkalagu), 303 (Abakaliki), 304 (Dangha), 313...
ABSTRACT A shallow geophysical investigation for road surface failure using 2D electrical resistivity imaging profiling was conducted to produce an approximate model of the subsurface resistivity. This study was done with the aim of revealing the horizontal and vertical geological discontinuities using electrical resistivity, an intrinsic property of all materials. Probable zones of untimely failure along the road are then investigated by variation in resistivity. Four traverses were establi...