Browsing Masters Degrees (Earth Sciences) by Title
Now showing items 42-61 of 96
-
An investigation of the petrogenesis of the Buddusò I-type granites and its mafic enclaves in Sardinia, Italy.
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT: There is still great debate surrounding the petrogenesis of I-type granites with mafic enclaves. The granite controversy indulges three prevalent processes/models surrounding the typical range in chemistry ... -
The Lithological and Structural Characterisation of the Sperlingputs Shear Zone in Southern Namibia
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT: The Richtersveld Magmatic Arc (RMA) forms a major ~200km wide Palaeoproterozoic block within the Mesoproterozoic Namaqua Metamorphic Province (NMP). The RMA consist of rafts of Orange River Group volcanic ... -
The lithostratigraphy and structural components of the Eureka Shear Zone, southern Namibia
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: The newly recognised Eureka Shear Zone (ESZ) in southern Namibia is a Late-Mesoproterozoic to Early Neoproterozoic high strain zone in the Namaqua sector of the Namaqua Natal Metamorphic Province (NNMP). ... -
The lithostratigraphy of Cenozoic deposits along the south-east Cape coast as related to sea-level changes
(Stellenbosch : Stellenbosch University, 1989-08)AFRIKAANSE OPSOMMING: Senosoiese sedimente langs die suidooskus van die Kaapprovinsie is periodiek deur verskeie outeurs vir meer as 'n eeu bestudeer. In hierdie aanbieding word die Iiteratuur saamgevat en vele ... -
Magma accumulation and segregation during regional-scale folding : the Holland’s dome granite injection complex, Damara belt, Namibia.
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: Mid-crustal, upper amphibolite-facies rocks in the south Central Zone magmatic arc of the Damara belt in central Namibia contain kilometre-scale networks of intrusive, sheet-like leucogranites. These ... -
Measurement of bioactive trace metals (Cu and Zn) in the Southern Ocean : validation of sampling protocol and ICP-MS based analytical method
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: A method comprising an improved seawater collection protocol and subsequent Inductively Coupled Plasma Mass Spectrometry (ICP-MS) based analytical technique was validated through an intercalibration ... -
The mid-crustal architecture of a continental arc - a transect through the South Central Zone of the Pan-African Damara Belt, Namibia
(Stellenbosch : University of Stellenbosch, 2010-03)ENGLISH ABSTRACT: The NE-trending South Central Zone of the Pan-African (ca. 550-500) Damara orogen in central Namibia exposes deeply eroded mid-crustal rocks, thought to represent the magmatic arc of the Damara orogen. ... -
Mine water geochemistry and management : two case studies and a new treatment method
(Stellenbosch : Stellenbosch University, 2000-12)ENGLISH ABSTRACT: Mine water, that is all forms of water associated with and affected by mining operations is probably the largest area of concern in the environmental geology of mining. This study looks at the ... -
A mineralogical and geochemical study of the tin deposit at NAD-mine in the Rooiberg tin field
(Stellenbosch : Stellenbosch University, 1994-12)ENGLISH ABSTRACT: The NAD deposit forms part of the A-Mine Complex in the Rooiberg tin field in the north-western Transvaal. Mining started in 1986 and the mine was closed recently following a decline of tin prices and ... -
Mineralogical and geochemical variations in the UG2 reef at Booysendal and Zondereinde mines, with implications for beneficiation of PGM
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The layered intrusion of the Bushveld Complex, South Africa hosts the world’s largest concentration of platinum group elements (PGE), which are principally mined from three mineralised horizons namely, ... -
A mineralogical approach to quantifying ore variability within a polymetallic Cu-Pb-Zn Broken Hill-type deposit and its implications for geometallurgy
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: A detailed two-part mineralogical study was undertaken on a polymetallic Cu-Pb-Zn ore from the Aggeneys-Gamsberg Ore District to quantify which mineral characteristics of the lithological ore types are ... -
Mineralogical characterisation of chromite in the UG2 Reef from Waterval Mine, Western bushveld : implications for minerals processing
(Stellenbosch : University of Stellenbosch, 2010-03)ENGLISH ABSTRACT: The Bushveld Complex of South Africa contains three of the most important platinum deposits in the world namely the Merensky Reef, the Upper Group Two (UG2) chromitite reef and the Platreef. These three ... -
Mineralogy and provenance of the Namakwa Sands heavy mineral satellite deposits
(Stellenbosch : Stellenbosch University, 2012-12)ENGLISH ABSTRACT: Five areas proximal to the world class Namakwa Sands heavy mineral deposit have been studied and include the farms Houtkraal Remainder Portion 2, Houtkraal Remainder, Geelwal Karoo, Graauwduinen and ... -
Modelling the architecture of distal sand-rich lobe deposits : an example from Fan 2, Skoorsteenberg Formation, Tanqua Karoo, South Africa
(Stellenbosch : University of Stellenbosch, 2009-03)Fan 2, one of five submarine fan systems of the Tanqua fan complex in the south-western Karoo Basin, South Africa, is subdivided into Lower, Middle and Upper units. Here, detailed analysis of the internal architecture ... -
Multi-disciplinary 3-D reservoir characterization and flow simulation of Aptian/Albian silicate sandstone reservoirs in Bredasdorp Basin, offshore South Africa
(Stellenbosch : Stellenbosch University, 2014-12)ENGLISH ABSTRACT: Geological models remain the required input in flow simulators for use by reservoir engineers to simulate performance and optimize oil recovery. The lack of complete subsurface information however, continues ... -
Noble gas and radiocarbon constraints on the residence times of groundwater in and around the City of Cape Town
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: The TMG Aquifer is one of the largest aquifer systems in the country and is currently targeted as a potential source of potable water for the City of Cape Town (CoCT) in times of water stress. This study ... -
Numeric geochemical reaction modelling, incorporating systems theory and implications for sustainable development : study on East Rand basin acid mine drainage, Witwatersrand, South Africa
(2014-12)ENGLISH ABSTRACT: In recent years acid mine drainage (AMD) has become the focus on many mine sites throughout the world. The Witwatersrand gold mines have been the main focus of AMD in South Africa due to their extensive impact ... -
The origin of rhythmic magmatic layering in coarse-grained porphyritic S-type granite of the Peninsula pluton, Cape Granite Suite, South Africa
(Stellenbosch : Stellenbosch University, 2013-12)ENGLISH ABSTRACT: Rhythmic magmatic layering in granites is an intriguing feature that has been reported from plutons with contrasting chemical compositions from a wide range of tectonic settings. Layered granites are rare ... -
Orthopyroxene stability within Kimberlite magma : an experimental investigation
(Stellenbosch : Stellenbosch University, 2012-03)ENGLISH ABSTRACT: The common presence of large volumes of coarse-grained olivine in kimberlite magmas has been proposed to attest to the volume of mantle xenolith material that has been disaggregated during the ascent of ... -
Parameters affecting accuracy and reproducibility of sedimentary particle size analysis of clays
(Stellenbosch : Stellenbosch University, 2004-04)ENGLISH ABSTRACT: The main aim of this study is to establish a standard procedure for all sedimentary particle size analysis methods specifically for clay minerals and mixtures thereof. Not only will it improve accuracy ...
