Geology: Recent submissions
Now showing items 1-20 of 33
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Coupling NCA dimensionality reduction with machine learning in multispectral rock classification problems
(MDPI, https://www.mdpi.com/, 2021-08-05)Though multitudes of industries depend on the mining industry for resources, this industry has taken hits in terms of declining mineral ore grades and its current use of traditional, time consuming and computationally ... -
Contaminant binding and bioaccessibility in the dust from the Ni-Cu mining/smelting District of Selebi-Phikwe (Botswana)
(Wiley Periodicals LLC, https://www.wiley.com/, 2022-08-22)We studied the dust fractions of the smelting slag, mine tailings, and soil from the former Ni-Cu mining and processing district in Selebi-Phikwe (eastern Botswana). Multi-method chemical and mineralogical investigations ... -
Spectral angle mapping and AI methods applied in automatic identification of placer deposit magnetite using multispectral camera mounted on UAV
(https://www.mdpi.com, 2022-02-20)The use of drones in mining environments is one way in which data pertaining to the state of a site in various industries can be remotely collected. This paper proposes a combined system that employs a 6-bands multispectral ... -
Use of the geochemical and biological sedimentary record in establishing palaeo-environments and climate changein the Lake Ngami basin, NW Botswana
(Elsevier, www.sciencedirect.com, 2006)Sediment samples from a continuous 4.6m profile in the dry bed of Lake Ngami in NW Botswana were analysed for geochemistry and dated using both 14C and TL methods. Certain units in the profile were found to be diatom rich ... -
Assessment of groundwater pollution vulnerability and modelling of the Kanye Wellfield in SE Botswana—a GIS approach
(Elsevier Science Ltd, http://www.elsevier.com/locate/pce, 2004)Botswana is a semi-arid country with limited recharge to groundwater resources. Groundwater however is a major source of water for domestic, industrial and agricultural uses. There is therefore the need to ensure that the ... -
Sedimentological and geochemical evidence for palaeo-environmental change in the Makgadikgadi subbasin, in relation to the MOZ rift depression, Botswana
(Elsevier www.elsevier.com/locate/palaeo, 2005)This work considers new evidence for palaeo environmental change taking place during the Pleistocene in northern Botswana. Duricrusted strandlines along the northeastern margin of Sua Pan provide palaeo-environmental data ... -
A ca. 200Ma hiatus between the Lower and Upper Transvaal Groups of southern Africa: SHRIMP U–Pb detrital zircon evidence from the Segwagwa Group, Botswana: Implications for Palaeoproterozoic glaciations
(Elsevier www.elsevier.com/locate/epsl, 2006)The Segwagwa Group of southeastern Botswana, a correlate of the Pretoria Group of the Transvaal Supergroup of South Africa, consists of a major sequence of siliciclastic sedimentary rocks, minor carbonates and basaltic to ... -
Origins of strandline duricrusts around the Makgadikgadi Pans (Botswana Kalahari) as deduced from their chemical and isotope composition
(Elsevier www.elsevier.com/locate/sedgeo, 2009)Trace elements togetherwith some O and C isotope analysiswere undertaken on duricrust strandline deposits in the palaeo-Makgadikgadi sub-basin (PMSB) to provide insight into palaeo-climatic conditions through the interpretation ... -
Environmental chemistry and mineralogy of particulate air matter around Selebi Phikwe nickel–copper plant, Botswana
(Elsevier www.elsevier.com/locate/mineng, 2004)This study aimed at chemically and mineralogically characterizing whole particulate air matter (PAM) occurring at the Selebi Phikwe nickel–copper (Ni–Cu) area in Botswana, and postulating its possible environmental ... -
Rainfall interpolation using a remote sensing CCD data in a tropical basin – A GIS and geostatistical application
(Elsevier, www.elsevier.com/locate/pce, 2007)This paper is aimed at developing a geostatistical model to improve interpolated annual and monthly rainfall variation using remotely- sensed cold cloud duration (CCD) data as a background image. The data set consists of ... -
A continental scale water balance model: a GIS-approach for Southern Africa
(Pergamon www.elsevier.com/locate/pce, 2003)A distributed GIS-based hydrological model is developed using GIS and computational hydrology techniques. The model is based on water balance consideration of the surface and subsurface processes. The surface water balance ... -
A continental scale water balance model: a GIS-approach for Southern Africa
(Pergamon www.elsevier.com/locate/pce, 2003)A distributed GIS-based hydrological model is developed using GIS and computational hydrology techniques. The model is based on water balance consideration of the surface and subsurface processes. The surface water balance ... -
The Okavango giant mafic dyke swarm (NE Botswana): its structural significance within the Karoo Large Igneous Province
(Elsevier www.elsevier.com/locate/jsg, 2005)The structural organization of a giant mafic dyke swarm, the Okavango complex, in the northern Karoo Large Igneous Province (LIP) of NE Botswana is detailed. This N1108E-oriented dyke swarm extends for 1500 km with a ... -
The Neoproterozoic Mwashya–Kansuki sedimentary rock succession in the central African Copperbelt, its Cu–Co mineralisation, and regional correlations
(Elsevier www.elsevier.com/locate/gr, 2007)Rocks of the Neoproterozoic Mwashya Subgroup (former Upper Mwashya) form the uppermost sedimentary unit of the Roan Group. Based on new field and drill hole observations, the Mwashya is subdivided into three formations: ... -
The Mesoproterozoic Irumide belt of Zambia
(Elsevier www.elsevier.com/locate/jafrearsci, 2006)The Mesoproterozoic Irumide belt is a northeast-trending structural province stretching from central Zambia to the Zambia–Tanzania border and northern Malawi. Mesoproterozoic and Neoproterozoic transcurrent shear zones ... -
Petrology and geochemistry of the Neoproterozoic Nguba and Kundelungu Groups, Katangan Supergroup, southeast Congo: Implications for provenance, paleoweathering and geotectonic setting
(Elsevier www.elsevier.com/locate/jafrearsci, 2006)The Nguba and Kundelungu Groups constitute the middle and upper parts of the Neoproterozoic Katangan Supergroup, respectively, and consist of conglomerates, sandstones, mudrocks and carbonates. During deposition, the ... -
Lithostratigraphic position and petrographic characteristics of R.A.T. (‘‘Roches Argilo-Talqueuses’’) Subgroup, Neoproterozoic Katangan Belt (Congo)
(Elsevier www.elsevier.com/locate/jafrearsci, 2005)The Neoproterozoic Katangan R.A.T. ("Roches Argilo-Talqueuses") Subgroup is a sedimentary sequence composed of red massive to irregularly bedded terrigenous-dolomitic rocks occurring at the base of the Katangan succession ... -
Sulphur isotope constraints on formation conditions of the Luiswishi ore deposit, Democratic Republic of Congo (DRC)
(Elsevier www.elsevier.com/locate/jafrearsci, 2005)Luiswishi is a Congo-type Neoproterozoic sediment-hosted stratiform Cu–Co ore deposit of the Central Africa Copperbelt, located northwest of Lubumbashi (DRC). The ores form two main Cu–Co orebodies hosted by the Mines ... -
Characterization of enriched lithospheric mantle components in ∼2.7 Ga Banded Iron Formations: An example from the Tati Greenstone Belt, Northeastern Botswana
(Elsevier www.elsevier.com/locate/precamres, 2009)Major and trace element, samarium (Sm)–neodymium (Nd) and lead (Pb) isotopic analyses of individual mesobands of five Banded Iron Formations (BIFs) and associated volcanic and sedimentary rocks from the Neoarchean Tati ... -
Genesis of sediment-hosted stratiform copper–cobalt deposits, central African Copperbelt
(Elsevier www.elsevier.com/locate/jafrearsci, 2005)The Neoproterozoic central African Copperbelt is one of the greatest sediment-hosted stratiform Cu–Co provinces in the world, totalling 140 Mt copper and 6 Mt cobalt and including several world-class deposits (P10 Mt ...