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Dissertations / Theses on the topic 'Aquifers – South Africa – Loxton'

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Published: 4 June 2021

Last updated: 3 February 2022

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1

Marais, Leander Hugo. "A hydrogeochemical evaluation of groundwater in fractured rock aquifers using trace elements and stable isotopes at Loxton in the Central Karoo." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52081.

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Thesis (MSc)--Stellenbosch University, 2001.<br>ENGLISH ABSTRACT: This study was conducted to assess groundwater characteristics of geologically different fracture rock aquifers, at different depths, by means of chemical, isotope and 14C-dating results and to test for a "deeper seated aquifer", with different characteristics. Jurassic dolerite dykes and sills, Cretaceous kimberlite fissures and pipes, as well as EW trending sinusoidal megafolds, comprise the structural domains of the study area. Fluvial sandstone and mudstone of the Beaufort Group are the dominant lithology of the study a

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2

King, Georgina. "The development potential of Kwazulu-Natal aquifers for rural water supply." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1005550.

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The supply of water to 'disadvantaged' areas of KwaZulu-Natal has in the past received low priority. Local government is now faced with supplying water to large, sometimes dispersed, rural populations. Groundwater has been utilised informally as a water supply for some years, but the impetus provided by the Department of Water Affairs and Forestry's White Paper has compelled those responsible for water supply to seriously consider groundwater as a sustainable option. The development potential or success of groundwater in its role as a reliable water supply is dependent on acceptance of the res

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3

Bush, Richard Alan. "A hydrogeological assessment of the Uitenhage-Kuils River area, Cape Province, South Africa." Thesis, Rhodes University, 1987. http://hdl.handle.net/10962/d1001901.

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4

Venables, Anthony John. "A hydrogeological assessment of the Uitenhage-Coega artesian system." Thesis, Rhodes University, 1985. http://hdl.handle.net/10962/d1003815.

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The Uitenhage artesian aquifer north-west of Port Elizabeth in South Africa, is one of the few artesian groundwater systems in Southern Africa. The Uitenhage - Coega, and Kruis River areas, are the most important portions of the Uitenhage Artesian System in terms of water abstraction and water use. This study concentrates on the Uitenhage - Coega area and in particular, on the Coega Ridge where the Table Mountain Sandstone (TNS) aquifer occurs at relatively shallow depths. The investigation is aimed at assessing the geological, hydrogeological and hydrochemical characteristics of the HIS and a

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5

Manyama, Kinsley. "Hydrogeophysical characterisation of shallow coastal aquifers in the Western Cape, South Africa." University of the Western Cape, 2017. http://hdl.handle.net/11394/5972.

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Magister Scientiae - MSc (Environ & Water Science)<br>Coastal aquifers present a key groundwater resource for freshwater supply in many coastal zones of Africa, and its availability is largely driven by the physical hydrogeological properties. An understanding of the aquifer properties in coastal areas is fundamental in that these aquifers present unique resource largely controlled to a very large extent by its geological and hydrological features and process. This study thus analysed information of resistivity variation of formations, drilling samples, water levels and slug test data, in an a

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6

Sigonyela, Vuyolwethu. "Towards understanding the groundwater dependent ecosystems within the Table Mountain Group Aquifer: a conceptual approach." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9454_1183462560.

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<p>Understanding of Groundwater Dependent Ecosystems (GDEs) and their extent within the Table Mountain Group (TMG) aquifer is poor. To understand the dependence to basic ecological and hydrogeological concepts need explanation. The use of current literature aided in identification and classification. From the literature it has come clear that groundwater dependence centers around two issues, water source and water use determination. The use of Geographical Information System (GIS) showed its potential in proof of water sources. Rainfall data and a Digital Elevation Model (DEM) for the Uniondal

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7

Netili, Khangweleni Fortress. "A preliminary understanding of deep groundwater flow in the Table Mountain group (TMG) aquifer system." Thesis, University of the Western Cape, 2007. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_3671_1194349953.

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<p>The Table Mountain Group (TMG) Aquifer is the second largest aquifer system in South Africa, after dolomites. This aquifer has the potential to be a signinficant source of water for the people of the Western Cape. The occurrence of hot water springs in the TMG in relation with the main geological fault systems in SOuth Africa shows that deep flow systmes do exist. Little is known about these deep aquifer systems in South Africa (i.e. flow mechanisms). To close the above-mentioned knowledge gap, this study was initiated. The current study gave a review of some of the aspects that needs to be

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8

Nakwafila, Albertina Nuusiku. "Salinisation source(s) and mechanism(s) in shallow alluvial aquifers along the Buffels River, Northern Cape Province, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96826.

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Thesis (MSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Several areas in Namaqualand are affected by elevated levels of salinity; including the shallow alluvial aquifers along the Buffels River catchment. The chemistry of rainwater that recharges these aquifers has low salt-loads, but the groundwater system is very saline. The shallow alluvial aquifers are an important source of water for several communal areas along the river both for domestic and agricultural purposes. Groundwater is also used for the copper and diamond mining activities along the river. Prior to this study, the so

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9

Parsons, Roger Paul. "The exploration and evaluation of groundwater units south and west of Graaf-Reinet, Cape Province, South Africa." Thesis, Rhodes University, 1987. http://hdl.handle.net/10962/d1007351.

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The investigation reported in the thesis concerns an area south and west of Graaff-Reinet, in the Cape Province. The research projec t identified the existence of four groundwater units. The aquifers predominantly occur in Beaufort Group sediments and the boundary of each unit is formed by dolerite intrusives or with topographical highs. The objective of the study was to quantitatively assess these units in terms of both quantity and quality for possible future development as a municipal supply for Graaff-Reinet. In order to achieve the objective, fieldwork was carried out involving a hydrocen

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10

Botha, F. S. "Ground water resource development in hard crystalline rock aquifers on the Nebo Plateau, South Africa." Diss., University of Pretoria, 2000. http://hdl.handle.net/2263/26292.

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11

Nxantsiya, Zusakhe. "A study of the southwestern Karoo basin in South Africa using magnetic and gravity data." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/4748.

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The early efforts of Booth, Johnson, Rubidge, Catuneanu, de Wit, Chevallier, Stankiewicz, Weckmann and many other scientists in studying the Karoo Supergroup has led to comprehensive documentation of the geology on the main Karoo Basin with regards to understanding the age, sedimentology, sedimentary facies and depositional environments. In spite of these studies, the subsurface structure, variations in thickness of various formations in large parts of the basin, the location and orientation of subsurface dolerite intrusions, and the depth to magnetic and gravity sources remains poorly documen

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12

Foster, Michael Benedict John. "Geological control of aquifer properties of the Chuniespoort Group in the Klip River Valley and Natalspruit Basin, Transvaal." Thesis, Rhodes University, 1988. http://hdl.handle.net/10962/d1013338.

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The aquifer of the study area occupies an escarpment and low lying limestone plain, and exhibits a Vaal River type karst. The four dolomitic formations present fall into two distinct aquifer forming types; chert poor units and chert rich units. The chert poor units of the Oaktree and Lyttelton Formations were deposited in a subtidal environment and were probably dolomi tised in a migrating schizohaline environment during basin subsidence and shoreline trangression. The chert rich units of the Monte Christo and Eccles Formations were deposited in the shallow subtidal to supratidal zones and the

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13

Woodford, A. C. "The exploration and evaluation of groundwater units in the Van Rynevelds Pass Dam Basin, north of Graaff-Reinet, Cape Province." Thesis, Rhodes University, 1989. http://hdl.handle.net/10962/d1013275.

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This thesis deals with a groundwater investigation conducted in the Van Rynevelds Pass Dam basin, north of Graaff-Reinet, in the Cape Province. The objective of the study was to assess the groundwater potential of the basin in terms of its development and exploitation as a municipal supply. In order to achieve this objective, fieldwork was carried out involving a hydrocensus, geological/geophysical mapping, drilling, aquifer testing and hydrochemical sampling. The fieldwork was conducted during the period January 1983 to February 1984. The investigation revealed that the most significant groun

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14

Botha, F. S. "Ground water resource development in hard crystalline rock aquifers on the Nebo Plateau, South Africa." Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-01312007-152347/.

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15

Dippenaar, Matthys Alois. "Characterisation of some fractured-rock aquifers in Limpopo province, South Africa : review and case study." Diss., University of Pretoria, 2008. http://hdl.handle.net/2263/28689.

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This dissertation collates all available data from the Department of Water Affairs and Forestry’s (DWAF’s) National Groundwater Database (NGDB), DWAF’s Groundwater Resource Information Project (GRIP) and tests conducted during the progress of this project in order to evaluate Basement aquifers. The project was commenced at the request of the Water Research Commission (WRC), situated in Pretoria, South Africa. The study area (Limpopo and Luvuvhu-Letaba Water Management Areas, WMA1 and WMA2 respectively) is underlain by fractured, crystalline Basement terrain. The influences of structures (i.e.

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16

Martinelli, Giorgio Luigi. "The hydrogeology of a Karoo basalt/sandstone contact aquifer moretele II district Republic of Bophuthatswana southern Africa." Thesis, Rhodes University, 1988. http://hdl.handle.net/10962/d1001902.

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As part of a development programme in the Moretele II District, the Government of the Republic of Bophuthatswana, commissioned in 1983 the building of a dry system coal-fired power station. The lack of local surface water to cool the power station resulted in a decision to investigate the potential of the ground water resources. The resources will be required to supply an anticipated 30 year water demand. Because of the high capital investment and the importance of establishing an accurate assessement of the ground water potential there was a need for a comprehensive and detailed hydrogeologic

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17

Mlisa, Andiswa. "Spatial decision support system for hydrogeological studies in Table Mountain Group Aquifers, Western Cape Province, South Africa." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/2473.

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Thesis (MA (Geography and Environmental Studies))--University of Stellenbosch, 2007.<br>The Western Cape province of South Africa is a water scarce area with a Mediterranean climate. The majority of rainfall occurs in the cold winter months and the area experiences hot and dry summers. Studies done to investigate various water supply and water demand management options for the City of Cape Town, concluded that the Table Mountain Group (TMG) aquifer has the potential of yielding high volumes (estimated at 70Mm3/a) of good quality water, but that further research about this source as a pote

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18

Madi, Kakaba. "Neotectonics and its applications for the exploration of groundwater in the fractured Karoo aquifers in the Eastern Cape,South Africa." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/362.

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This study is part of an NRF sponsored research project entitled “Neotectonics and its applications for the exploration of groundwater in the fractured Karoo aquifers in the Eastern Cape” under the NRF Niche area of Water Resources Management and Sustainable Development in the Eastern Cape Province. The identification of relatively highly productive wells in the Karoo fractured aquifers is extremely difficult. This study aims to identify neotectonic zones and lower stress fields, and apply the results to groundwater exploration in the Eastern Cape Province. The methodologies adopted in this st

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19

Samuels, Donovan. "Hydraulic properties of the vadose zone at two typical sites in the Western Cape for the assessment of groundwater vulnerability to pollution." Thesis, University of the Western Cape, 2007. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6812_1216299974.

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<p>Aquifer vulnerability assessment is increasingly becoming a very significant basis in order to fulfill the water demands in South Africa. Knowledge of soil hydraulic properties that consists of the soil water retention and hydraulic conductivity functions is a prerequisite for predicting solution transport in soils. The overall objective of the study was to develop a database of hydraulic properties for collected undisturbed samples and to test selected models by making use of this database.</p>

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20

Carstens, Alewyn Johannes. "Evaluation of microbiological and physico-chemical quality of water from aquifers in the North West Province, South Africa." Thesis, North-West University, 2013. http://hdl.handle.net/10394/8999.

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Contamination of groundwater that is suitable for drinking is of growing concern as the water supply of South Africa is becomingincreasingly limited. This is especially the case in the North West province, with its semi – arid climate and variable rainfall patterns. The aim of the study was to evaluate the microbiological and physico – chemical qualities of groundwater obtained from selected DWA (Department of Water Affairs) monitoring boreholes in the Mooi River and Harts River catchment areas. Physico -chemical parameters included temperature, pH, electrical conductivity (EC), sa

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21

Mokoena, Portia Leah. "Novel approach of using Hydrogeochemistry, Hydrogeologic and Hydrostratigraphic techniques in evaluating coastal aquifers in Heuningnes catchment, South Africa." University of the Western Cape, 2019. http://hdl.handle.net/11394/7960.

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Philosophiae Doctor - PhD<br>The increasing population in search for better social and economic development in coastal areas puts groundwater resources under pressure because of the high fresh water demand for domestic and agriculture use. Seawater intrusion is widely recognised as major concern in coastal aquifers across the globe and is influenced by multiple factors, being climate variation which is projected to adjust recharge of groundwater because of decreased precipitation patterns and to increase sea level variations and over-abstraction due to high freshwater demand as a result of inc

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22

Van, Der Schyff Malikah. "Using hydrogeochemistry and geophysical techniques to determine the extent of connectivity between Langerban road and Elandsfontein aquifer system, West Coast, South Africa." University of Western Cape, 2020. http://hdl.handle.net/11394/7308.

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Magister Scientiae (Integrated Water Resource Management)<br>The heterogeneity in groundwater systems suggest that not all aquifers are connected in groundwater systems. This study is about the interaction between aquifers within groundwater system. Langebaan Road and Elandsfontein aquifers in the West Coast groundwater aquifer system were chosen as case studies. These units were chosen because the previous studies on groundwater excluded the aspect of connectivity between aquifers from methods perspective which is the focus on the current study. The second reason for the study area was the pr

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23

Madi, Kakaba. "Targeting and characterizing potentially high yield aquifers in the neotectonic zones in the Eastern Cape Province in South Africa." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1021270.

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The Eastern Cape Province has, besides the three known neotectonic belts (southern, eastern and northern) a fourth zone, which is inactive. This inactive zone is located almost in its central part north of the southern neotectonic zone, and south of the northern neotectonic belt. The three above mentioned neotectonic belts (southern, eastern and northern) were chosen for this study, each one with its own characteristics. This study aims at characterizing and targeting potentially high yield aquifers in the neotectonic zones in the Eastern Cape Province. The methods used in this study include:

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24

Haricombe, Erin. "Transport and fate of chemical and microbial tracers at University of Western Cape (UWC) campus site, Cape Flats aquifer of South Africa." University of the Western Cape, 2016. http://hdl.handle.net/11394/5233.

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>Magister Scientiae - MSc<br>Extreme weather events in combination with geographical changes in groundwater utilization, groundwater availability, aquifer recharge, and ultimately changes in the quality of water resources, are expected in the future. As a consequence of changing weather patterns and urbanization the demand for groundwater is likely to increase in certain areas. We know that most waterborne pathogenic health epidemics are associated with contamination of farm water and wastewater. There is however limited understanding of the nature and extent of chemical, physical and biologi

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25

Biedler, Murray W. "Delineation of buried stream channels using geophysical techniques." Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1005498.

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This study sets out to evaluate the use of geophysical methods for delineating buried stream channels, which can act as zones of preferential flow within a less hydraulically conductive aquifer. This information is important for gaining an understanding of flow dynamics of alluvial systems. The most reliable method of delineating the dimensions of aquifers is by drilling, which is an expensive proposition and is best preceded by a preliminary geophysical study to help define target zones for a drilling program. The study area is located adjacent to the Coerney River in the Sundays River Valley

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26

Mahed, Gaathier. "Development of local sampling and monitoring protocol for radioactive elements in fractured rock Acquifers in South Africa using a case study in Beaufort West." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8802_1297844143.

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<p>The aim of this study was to test whether one could use the same methods as used for sampling heavy metals and apply them to radioactive elements. Furthermore a sampling protocol was developed, the first of its kind, for the sampling of radioactive elements in fractured rock aquifers. This was achieved by initially examining local as well as international manuals and methods. The aforementioned was done in conjunction with a literature review of the movement of radioactive elements in these fractured rock aquifers. Beaufort West was utilised as a study area and the geology, hydrogeology and

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27

Yu, Liuji. "Measurement of the bulk flow and transport characteristics of selected fractured rock aquifer systems in South Africa: a case study of the Balfour Formation in the Eastern Cape Province." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/415.

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Hydrogeologists have faced serious challenges worldwide in the characterization of fractured rock aquifers due to the heterogeneous nature of the imbedded geology. The bulk flow parameters in the Karoo strata in South Africa are specifically uncertain since most models are based on homogenous block systems. As part of a WRC research project, entitled “Measurement of the bulk flow and transport characteristics of selected fractured rock aquifer systems in South Africa”, this study focuses on the characterization, borehole drilling, flow parameter measurements and groundwater quality assessment

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28

Fortuin, Mildred. "A geographic information systems approach to the identification of Table Mountain group aquifer "type areas" of ecological importance." Thesis, University of the Western Cape, 2004. http://etd.uwc.ac.za/index.php?module=etd&amp.

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The Table Mountain group aquifer system has the potential to be an important supply of water. Although the aquifer system is used to some extent, a number of aspects relating to the aquifer system are poorly understood and unquantified. This study aimed to take into consideration the importance of differenct ecosytems, which is essential in predicting the effects of groundwater abstruction. However, the ecological requirements of systems that depend on groundwater are poorly understood. This project identified &quot<br>type areas&quot<br>for further detailed research into the impacts of large-

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29

Solomon, Henok Goitom. "Application of multivariate statistics and Geographic Information Systems (GIS) to map groundwater quality in the Beaufort West area, Western Cape, South Africa." Thesis, UWC, 2013. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_4718_1395924268.

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<p><font face="TimesNewRomanPSMT"> <p align="left">Groundwater in arid and semi-arid areas like the Karoo region of South Africa is an important source of domestic, agricultural and industrial source of fresh water. As a scarce resource, it requires extensive quality control and protection through innovative methods and efficient strategies. The town of Beaufort West and its vicinity use groundwater as a major source of municipal and private water supply. Forty nine groundwater samples were collected from spatially referenced boreholes located in and around the town of Beaufort West and were a

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30

Holland, Martin. "Hydrogeological characterisation of crystalline basement aquifers within the Limpopo Province, South Africa." Thesis, 2011. http://hdl.handle.net/2263/25713.

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Geologically complex crystalline aquifers are distributed extensively in Africa and also underlie large parts of the semi-arid Limpopo Province where some of the greatest groundwater needs in South Africa occur. The importance of these basement aquifers makes it vital to identify high yielding hydrogeological zones that can be targeted for water supply, to sustain areas of high population density with few or no alternative water sources. The biggest challenge is to understand the factors that determine the secondary permeability of these weathered-fractured rock aquifers. The focus of this stu

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31

Rambuwani, Rudzani Vincent. "Hydrogeological characterisation and water supply potential of Lebalelo South, Limpopo Province of South Africa." Diss., 2020. http://hdl.handle.net/11602/1603.

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MESHWR<br>Department of Hydrology and Water Resources<br>Lebalelo area of Sekhukhune district is one of many areas in South Africa experiencing portable water scarcity, especially during prolonged dry season. Due to the dominance of low yielding aquifers in South Africa, it is essential to manage groundwater resources in these low yielding aquifers. However, the management of low yielding aquifer is difficult in areas like Labelelo where the hydrogeological characteristics of the aquifers are understudied. This study investigated the hydrogeological characteristics of the aquifers in the area

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32

Ndwambi, Khuthadzo. "Investigation of Groundwater Potential in Naledi Local Municipality, North West Province, South Africa." Diss., 2016. http://hdl.handle.net/11602/843.

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Nyawo, Bongizenzo Langelihle. "Groundwater and surface water interaction in the Uitenhage Artesian Basin, Eastern Cape, South Africa: case study of the Swartkops and Coega aquifer." Thesis, 2017. http://hdl.handle.net/10539/23509.

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Dissertation Submitted to the University of the Witwatersrand in the Fulfilment of the Master’s Degree in Geology (Hydrogeology) Faculty of Science University of the Witwatersrand Date: May 2017<br>The state of water quality in the Swartkops River catchment in the Uitenhage area, Eastern Cape Province, South Africa, continues to be degraded by anthropogenic activities, which include municipal waste water, industrial waste and agricultural runoff. The study area consists of two aquifers (Swartkops and Coega) that are separated by the fault (Coega fault). In the study area there are two main

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34

Nemaxwi, Phathutshedzo. "Estimation of Groundwater Recharge Response from Rainfall Events in a Semi-Arid Fractured Aquifer: Case Study of Quaternary Catchment A91H, Limpopo Province, South Africa." Diss., 2015. http://hdl.handle.net/11602/861.

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Maluleke, H. L. "Microbiological and physico-chemical quality of surface and groundwater sources and its socio-economic impact in the Mpheni - Elim Village, Limpopo Province, South Africa." Diss., 2009. http://hdl.handle.net/11602/1017.

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36

Tasaki, Sayomi. "The presence of stygobitic macroinvertebrates in karstic aquifers: a case study in the cradle of humankind world heritage site." Thesis, 2008. http://hdl.handle.net/10210/658.

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Subterranean ecosystems are regarded as the most extensive biome on earth, comprising terrestrial and aquatic systems - the latter constituting freshwater, anchialine and marine systems. This system plays a key role in the distribution and storage of freshwater, once it contains 97% of the world’s total liquid freshwater (Chapter 1), which has been progressively explored in quality and amount. Initial observation of the subterranean environment began with speleological studies by the recognition of a typical fauna adapted to live inside caves. The first studies to provide information about aqu

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Modisha, Reshoketswe Caroline Oudi. "Investigation of the Ramotswa Transboundary Aquifer area, groundwater flow and pollution." Thesis, 2017. http://hdl.handle.net/10539/23568.

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A research report submitted to the Faculty of Science, in partial fulfilment of the requirements for the degree of Master of Science in Hydrogeology, School of Geosciences, University of the Witwatersrand. Johannesburg, June 2017.<br>Groundwater is a principal source of water for many semi-arid countries, including Botswana and South Africa. This is especially true for the rural communities within these regions that lie on the periphery of local water scheme pipelines and make direct use of groundwater. The Ramotswa transboundary aquifer, which supplies local communities and nearby cities with

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Vagis, Georgia Evgenia. "A review of the use of Drastic in assesing the vulnerability of aquifers to contamination, and a case study of the use of Drastic on a localised scale in South Africa." Thesis, 2008. http://hdl.handle.net/10539/4936.

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ABSTRACT The use of DRASTIC – an aquifer vulnerability to contamination assessment tool, is analysed and reviewed for its applicability in helping develop a national aquifer management systems from the vulnerability maps produced by DRASTIC. Furthermore, the use of DRASTIC in assessing the vulnerability of an aquifer on a localised scale has been performed. The study showed that DRASTIC yields accurate results on localised scales where sufficient information is available. The use of DRASTIC on a national scale is subject to the scale of the input data and will only produce an aquifer v

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