Author:Savage, WHD; Briel, JMDate:1969During the years 1956 and 1957, Messrs. Union Corporation Ltd., drilled 9 boreholes on the farm Springbokdraai 277 I.S situated approximately 10 miles south-east Leslie, Transvaal.Read more
Author:Boshoff, HPDate:1972During 1967 officers of the Institute too samples at three faces in the Dumbe colliery, situated approximately 2 miles (3 km) to the south east of Paulpietersburg, Natal.Read more
Author:Pretorius, EDate:1979During the years 1962 and 1964, seven boreholes were drilled on three farms situated approximately fifteen kilometers south of Delmas by Delmas Colliery Ltd. Of these boreholes three were drilled on the farm Couwenburg, two on Strijdpan and ...Read more
Author:Quass, FWDate:1943This report details a series of six boreholes put down by the Anglo-Transvaal collieries Ltd., on the farm Grootpan in the Witbank District of Transvaal.Read more
Author:Quass, FWDate:1943In September, 1939, an intensive survey of the torbanite occurrences in the vicinity of Mooifontein 287, north of Ermelo, was begun by the Geological survey.Read more
Author:Gaigher, BDate:1944During the period December 1941 to January 1942, three boreholes were put down by the Middleburg Steam Coal and Coke Company on the farms Hartebeesfontein and Blesbokfontein in the Bethal district of Transvaal.Read more
Author:Gaigher, BDate:1944During 1942 a series of 14 boreholes was put down by the South African Iron and Steel Industrial Corporation on the farms Welstand 34, Rietkuil 27, Diepspruit 25 and Roodepoort 24, in the Bethal District of TransvaalRead more
Author:Van der Merwe, CCDate:1945This report deals with the characteristics of the coal as revealed by both these drilling programmes, although boreholes No. 1/41, 2/41 and 3/41 were excluded from the composite samples that were made up.Read more
Author:Savage, WHDDate:1949A series of 12 boreholes was drilled by Messrs.Sebato Investments Ltd. on the north-western portion of Elandsfontein 8 district in the years 1945 and 1946.Read more
Author:Du Plessis, C; Landman, KDate:Jul 2002The report is divided into four parts which consist of seven chapters. Within human settlement context the report’s understanding of sustainable development is one of an integrative and holistic process of maintaining a dynamic balance between ...Read more
Author:Baird, D; Hanekom, NM; Grindley, JRDate:Jan 1986The Swartkops Estuary is an exceptionally valuable environment feature for the Port Elizabeth metropolitan area. Just as Cape Town has Table mountain, so Port Elizabeth has the Swartkops Estuary as a natural area. Despite the intensive urban ...Read more
Author:Baird, D; Marais, JFK; Martin, APDate:1988The 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
Author:Baird, D; Marais, JFK; Martin, APDate:1988The Swartkops estuary has been an object of the study for many years and research results obtained during the past 30 years were considered at a symposium in 1987. This report documents the proceeding of this symposium as well as conclusions ...Read more
Author:Estuarine and Coastal Research Unit, ECRUDate:Apr 1981The estuary falls within a strict security area of the Koingnaas mining concession of De Beers Consolidated Diamond Mines. Due to the active mining operations in the immediate vicinity of the estuary, security clearance is required. The ...Read more
Author:Whitfield, AK; Allanson, BR; Heinecken, TJEDate:Dec 1983Swartvlei 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
Author:O'Connor, TGDate:Oct 1985The purpose of this synthesis of long term experiments was to develop an account of how the principal determinants (rainfall, soil type, woody/grass ratio, herbivory, fire) influence the dynamics of the grass layer of southern African ...Read more
Author:Pierce, SMDate:00 Dec 1984This synthesis provides an inventory of plant phenology in the fynbos biome up to February 1983, and an evaluation of the methods used. Phenology of species, genera and families, and also of communities in terms of growth forms, individuals ...Read more
Author:Wright, Jarrad G; Calitz, Joanne RDate:Jul 2020The study analysed a range of cost-optimal energy system pathways for South Africa for the period 2020-2050, with CO2 emission reductions greater than that achieved by the current 2019 Integrated Resource plan (IRP). Thus, the speed of reducing ...Read more
Author:Rust, FCDate:Jan 2009The importance of science and technology in South Africa in the next decade has been emphasised in the National R&D strategy, and a target expenditure of one per cent of GDP on R&D has been set. Research programmes in transport in the 1990s ...Read more
Author:Smith, Andrew CDate:Sep 2018It is a fundamental Human-Computer Interaction problem to design a tangible programming environment for use by multiple persons that can also be individualised. This problem has its origin in the phenomenon that the meaning an object holds ...Read more