Department of Earth Science: Recent submissions
Now showing items 61-80 of 338
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The use of derivative analysis and aquifer parameter estimation to refine a conceptual model: A case study approach, Western Cape, South Africa
(University of Western Cape, 2021)Hydrogeological characterization of an aquifer system is a first step to determine groundwater quantity, yield potential, socio-economic value, storage capacity and aquifer transmissivity properties of an aquifer as a water ... -
The effect of particle size separation on the enrichment and recovery of rare earth elements from South African coal fly ash
(University of Western Cape, 2021)There has been increasing interest in finding alternative sources for Rare Earth Elements (REEs) due to their application in green energy and Coal Fly Ash (CFA) has been found to be a viable potential source. Thus ... -
Porosity and Permeability Distribution in the Deep Marine Play of the Central Bredasdorp Basin, Block 9, Offshore South Africa
(University of the Western Cape, 2006)This study describes porosity and permeability distribution in the deep marine play of the central Bredasdorp Basin, Block 9, offshore South Africa using methods that include thin section petrography, X-ray diffraction, ... -
Characterization of flowpaths to improve the prediction of vegetation impacts on hydrological processes in semi-arid mountainous catchments of the Cape Fold Belt
(University of Western Cape, 2021)Mountainous areas are important water sources in many landscapes. An understanding of how mountainous catchments function is important particularly in semi-arid areas, where water shortages are prevalent. In addition to ... -
Assessment of the water quality and quantity of the upper Liesbeek River dominated by Cannon Spring discharges: Ecological considerations for the Cannon Spring developmen
(University of Western Cape, 2021)The ecology of spring fed rivers has been under-studied in South Africa. As a result, little is known or documented on the effects of seasonal variation of flows on the species diversity, distribution and abundance of ... -
Structural controls on groundwater flow in the Clanwilliam area
(University of the Western Cape, 2005)Deformation of the western part of the Table Mountain Group rocks during the Cape Orogeny created a series of folds and associated fractures. The subsequent continental break-up of Gondwana led to the development of large ... -
Effects of acid concentration on the extraction of rare earth elements from South African Coal Fly Ash
(University of Western Cape, 2021)Coal is seen as a reliable and secure energy source in many countries around the world despite the development of a number of alternative sources of energy. A rise in global energy demand has led to an increase in coal ... -
The ecohydrology of the Fransehoek Trust Wetland: water, soils and vegetation.
(University of the Western Cape, 2010)The research was driven by a need to increase the knowledge base concerning wetland ecological responses, as well as to identify and evaluate the factors driving the functioning of the Franschhoek Trust Wetland. An ... -
Preferential flow modelling in a vadose zone using macro 5.0 - Cape Flats porous sands and Mpumalanga highveld clays case studies
(University of the Western Cape, 2008)Understanding fluid flow and solute transport within the vadose (unsaturated) zone is an essential prerequisite for protection of groundwater from contaminant sources occurring overland. Preferential flow paths in the ... -
The use of constructed wetlands to ameliorate discharge water from coal mines in the Witbank Coalfield
(University of Western Cape, 2021)Mining has a lengthy history in South Africa, and subsequent beneficiation processes have been conducted with little regard for the environment, thus leaving the land with un-rehabilitated abandoned mines. Currently, most ... -
The partitioning of evapotranspiration in apple orchards from planting until full-bearing age and implications for water resources management
(University of Western Cape, 2021)Orchard evapotranspiration (ET) is a complex flux which has been the subject of many studies. It often includes transpiration from the trees, cover crops and weeds, evaporation from the soil, mulches, and other orchard ... -
Spatial and temporal variations of inundation and their influence on ecosystem services from a shallow coastal lake. A case study of Soetendalsvlei in the Nuwejaars catchment, South Africa
(University of Western Cape, 2021)Enhancing our understanding of wetland properties and the ecosystem services provided by wetlands within a dynamic landscape, is fundamental to ensuring appropriate management strategies for enhanced biodiversity and ... -
Comparative Study of the Chemostratigraphic and Petrophysical characteristics of Wells A-Al, A-Ll, A-Ul and A-Il in the Orange Basin, South Atlantic Margin, Offshore South Africa.
(University of the Western Cape, 2009)Many hydrocarbon reservoirs are situated in barren sequences that display poor stratigraphic control. Correlation between the wells can become extremely difficult and traditional correlation techniques can prove to be ... -
Investigating the effects of nutrients and chlorophyll concentrations on the water quality of the Nuwejaars River, Cape Agulhas, Western Cape
(University of Western Cape, 2021)The Nuwejaars River flows into the largest natural freshwater lake in South Africa, Soetendalsvlei, which relies on and interacts with the Nuwejaars River. Therefore, the water quality of the Nuwejaars River plays a role ... -
Environmental modelling of wetland distribution in the Western Cape, South Africa: A climate change perspective
(University of Western Cape, 2021)Wetlands have been recognised as one of the most intrinsically valuable and threatened ecosystems in the world. Global estimates indicate that wetlands are being lost or transformed at a rapid rate, exacerbated by projected ... -
Multispectral remote sensing of vegetation responses to groundwater variability in the greater floristic region of the Western Cape, South Africa
(University of Western Cape, 2021)Groundwater dependent vegetation (GDV) communities are increasingly threatened by the transformation of the natural environment to different land use/land cover, over-exploitation of groundwater resources and the proliferation ... -
Spatial distribution and abundance of microplastics particles in the bed sediment of Zeekoevlei Lake, Cape Town
(University of Western Cape, 2021)Microplastics (MPs) are an emerging micro-pollutant that pose a threat to the ecological integrity of freshwater rivers and wetlands. Most previous work on MPs pollution has focused on marine environments. This study aimed ... -
Developing a citizen science framework for water resources protection to facilitate operationalization of resource directed measures at catchment level, South Africa
(University of Western Cape, 2021)Maintenance of water resources protection practice for water availability, uninterrupted water utilization, and for ecosystem integrity is critical for sustainable achievement of resource security for all. Therefore, ... -
Developing a citizen science framework for water resources Protection to facilitate operationalization of resource Directed measures at catchment level, South Africa
(2021)Maintenance of water resources protection practice for water availability, uninterrupted water utilization, and for ecosystem integrity is critical for sustainable achievement of resource security for all. Therefore, ... -
Understanding spatial patterns of dispersal and deposition of fine sediment and adsorbed phosphates in the Wiesdrift Wetland on the Nuwejaars River, Cape Agulhas
(University of the Western Cape, 2021)River catchments in agricultural areas are strongly influenced by runoff from cultivated or grazed fields, and nutrient loading of these fields can result in large quantities of nitrates and phosphates being transported ...