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Browsing by Subject "Geology"

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Application of borehole radar to South Africa’s Ultra-Deep gold mining environment

Author: Trickett, JC ; Stevenson, F ; Vogt, D ; Mason, I ; Hargreaves, J ; Eybers, H ; Fynn, R ; Meyering, M Date: May 2000 Borehole Radar has been identified as the most immediately applicable electromagnetic technique to delineate disruptions to gold reef in the South African Deepmine environment. The economically important Ventersdorp Contact Reef (VCR) has ... Read more
Bibliography of sandy beaches and sandy beach organisms on the African continent

Author: Bally, R Date: 1986 This bibliography covers the literature relating to sandy beaches on the African continent and outlying islands. The bibliography lists biological, chemical, geographical and geological references and covers shallow marine sediments, surf ... Read more
Detection of sinkhole precursors through SAR interferometry: radar and geological considerations

Author: Theron, Andre ; Engelbrecht, Jeanine ; Kemp, J ; Kleynhans, Waldo ; Turnbull, T Date: Jun 2017 Sinkholes are an unpredictable geohazard that endanger life and property in dolomitic terrains. Sinkholes are a significant threat in Gauteng, South Africa’s most populated and urbanized province. Small-scale surface subsidence is frequently ... Read more
Development of a strategic slope management system for use in South Africa

Author: Leyland, R Date: Sep 2010 Despite some preliminary developments for Slope Management Systems (SMS) for the South African Road Network, no functional SMS has been implemented. Slopes along important strategic routes are generally not monitored and only maintained on a ... Read more
Fynbos palaeoecology: A preliminary synthesis

Author: Deacon, HJ ; Hendey, QB ; Lambrechts, JJN Date: Dec 1983 Current knowledge of aspects of the geology, soils and palaeontology relevant to the study of the palaeoecology of the fynbos region, the southern margin of the African continent, is surveyed in nine essays and three introductory reviews. ... Read more
Geology and petrology of road construction materials revisited; paper presented at 13th ARCSMGE conference in Marrakech, Morocco, December 2003

Author: Paige-Green, P Date: May 2004 As the need for road construction materials increased with urban and rural development, their availability is decreasing. They are becoming more costly, their extraction usually has serious environmental implications and many of the most ... Read more
Hydrogeological assessment of Acid mine Drainage impacts in the West Rand Basin, Gauteng Province

Author: Hobbs, PJ ; Cobbing, JE Date: Aug 2007 The comparatively short history of acid mine drainage (AMD) in the West Rand Basin (WRB) via mine water decant on the Randfontein Operations property (formerly Randfontein Estates Ltd) of Harmony Gold Mining Company west of Krugersdorp (Figure ... Read more
In-mine (tunnel-to-tunnel) electrical resistance tomography in South African platinum mines

Author: Van Schoor, Michael ; Binley, A Date: Dec 2009 The applicability of tunnel-to-tunnel electrical resistance tomography (ERT) for imaging disruptive geological structures ahead of mining, in an igneous platinum mining environment is assessed. The geophysical targets of interest are slump ... Read more
In-mine electrical resistance tomography for imaging the continuity of tabular orebodies

Author: Van Schoor, Michael Date: Sep 2006 One of the strengths of the electrical resistance tomography (ERT) technique is its flexibility in terms of survey geometries. In this paper an unconventional and novel ERT application that is geometrically analogous to in-seam seismic ... Read more
Introduction to the geophysical methods applicable to coal

Author: Fourie, S ; Van Schoor, Michael ; Vogt, D ; van der Walt, J ; Jikelo, A ; Campbell, G ; Du Plessis, A Date: Jan 2015 This chapter introduces a range of geophysical methods that may be applicable to coal mining and exploration problems. The focus of these discussions is on emphasising the link between geology and physics – and how the different geophysical ... Read more
Karoo biome: a preliminary sythesis. Part 1 - physical environment

Author: Cowling, RM ; Roux, PW ; Pieterse, AJH Date: 1986 This report, the first of three volumes, forms part of the Karoo Biome Project. One of the aims is to synthesize existing knowledge of the Karoo biome and so provide a foundation for further research in areas where it is considered necessary. ... Read more
Late quaternary paleotemperatures derived from a speleothem from Cango caves, Cape Province, South-Africa

Author: Talma, AS ; Vogel, JC Date: Mar 1992 An oxygen isotope temperature record over a large part of the past 30,000 yr has been obtained for the southern Cape Province of South Africa by combining data on the isotopic composition of a stalagmite from a deep cave with that of a confined ... Read more
Optimal sampling schemes applied in geology

Author: Debba, Pravesh Date: May 2010 The presentation was an the University of Pretoria to geology students. It focused on ways to design optimal sampling schemes to target specific minerals. Read more
Proceedings of plumes, plates and mineralisation symposium: an introduction

Author: Hatton, CJ ; De Waal, SA ; Schweitzer, JK Date: Dec 1997 The papers in this special issue consider possible South African plume-related deposits, such as the Ventersdorp and Karoo volcanic rocks, and the Bushveld and Uitkomst Complexes. These magnetic provinces are described and interpreted in the ... Read more
Some variations in petrography of South African Karoo dolerites and the effects thereof on aggregate properties

Author: Leyland, R Date: 2014 The Karoo Dolerite Suite in South Africa is an important source of road construction aggregates both as natural gravel aggregate and as a crushed rock aggregate. The reason for this is the wide distribution of the suite throughout the Karoo ... Read more
Some variations in petrography of South African Karoo dolerites and the effects thereof on aggregate properties

Author: Leyland, R Date: 2015 The Karoo Dolerite Suite in South Africa is an important source of road construction aggregates both as natural gravel aggregate and as a crushed rock aggregate. The reason for this is the wide distribution of the suite throughout the Karoo ... Read more
Swartkops estuary

Author: Baird, D ; Marais, JFK ; Martin, AP Date: 1988 The Swartkops estuary has been an object of study for many years and research results obtained during the past 30 years were considered at a symposium in 1987. This report documents the proceedings of this symposium as well as conclusions and ... Read more
Swartvlei (CMS11)

Author: Whitfield, AK ; Allanson, BR ; Heinecken, TJE Date: Dec 1983 Swartvlei ranks among the most intensively studied of all Cape estuarine systems. The hydrology of the Swartvlei catchment has been investigated by then the Department of Water Affairs, hydrographic survey have been conducted by the Coastal ... Read more
Waterberg coalfield airborne geophysics

Author: Fourie, S ; Henry, G ; Marè, L Date: Jul 2009 Major objective of the project is to initiate semi-regional exploration of the Waterberg Coalfield to the benefit of the Industry. Read more
What lies beneath: detecting sub-canopy changes in savanna woodlands using a three-dimensional classification method

Author: Fisher, JT ; Witkowski, TF ; Erasmus, BFN ; Mograbi, PJ ; Asner, GP ; Van Aardt, JAN ; Wessels, Konrad J ; Mathieu, Renaud SA Date: Jul 2015 Question: Increasing population pressure, socio-economic development and associated natural resource use in savannas are resulting in large-scale land cover changes, which can be mapped using remote sensing. Is a three-dimensional (3D) woody ... Read more

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