Academic literature on the topic 'Hydrogeology – South Africa – Transvaal'

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Journal articles on the topic "Hydrogeology – South Africa – Transvaal"

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Fourie, S. P. "The Transvaal, South Africa, Threatened Plants Programme." Biological Conservation 37, no. 1 (1986): 23–42. http://dx.doi.org/10.1016/0006-3207(86)90032-7.

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Morton, K. L. "Hydrogeology of the Venetia Diamond Mine, South Africa." South African Journal of Geology 106, no. 2-3 (September 1, 2003): 193–204. http://dx.doi.org/10.2113/106.2-3.193.

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Eriksson, P. G., and C. W. Clendenin. "A review of the transvaal sequence, South Africa." Journal of African Earth Sciences (and the Middle East) 10, no. 1-2 (1990): 101–16. http://dx.doi.org/10.1016/0899-5362(90)90049-k.

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Bennett, Brett M., and Frederick J. Kruger. "Forestry in Reconstruction South Africa: Imperial Visions, Colonial Realities." Britain and the World 8, no. 2 (September 2015): 225–45. http://dx.doi.org/10.3366/brw.2015.0192.

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This articles analyses the establishment of state forestry programs in the Orange Free State and Transvaal following the end of the South African War/Second Anglo-Boer War (1899–1902). British imperial administrators, led by Alfred Milner, sought to reconstruct the economy of the Transvaal and Orange Free State by using personnel who had worked previously in India and Egypt rather than by drawing on local experts in the Cape Colony or Natal Colony. Colonial foresters from the Cape Colony used the opportunities provided by reconstruction to export Cape-centric ideas about forest management to the Transvaal and Orange Free State. Ultimately, Milner's desire to bring in a top-rate forester from India failed, although his program of reconstruction instead brought in foresters from the Cape Colony who helped to harmonise South African forestry practices before Union in 1910. The interpretation put forward in this article helps to explain how Cape foresters exported ideas about climatic comparison and afforestation from the Cape into the rest of South Africa.
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Coppins, B. J. "Two New Species of Micarea From South Africa." Lichenologist 31, no. 6 (November 1999): 559–65. http://dx.doi.org/10.1006/lich.1999.0234.

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AbstractTwo new species of Micarea are described from South Africa: M. almbornii Coppins, on loose sandstone from Stellenbosch (Western Cape) and M. endoviolascens Coppins, on damp soil from Transvaal. A note is given on Lecidea geïna Stizenb.
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Lundquist, J. E. "Fungi Associated withPinusin South Africa Part I. The Transvaal." South African Forestry Journal 138, no. 1 (September 1986): 1–14. http://dx.doi.org/10.1080/00382167.1986.9630036.

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Rosinski, J., and G. M. Morgan. "Ice-forming nuclei in transvaal, Republic of South Africa." Journal of Aerosol Science 19, no. 5 (October 1988): 531–38. http://dx.doi.org/10.1016/0021-8502(88)90205-4.

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Meyer, F. M., and L. J. Robb. "The geochemistry of black shales from the Chuniespoort Group, Transvaal Sequence, eastern Transvaal, South Africa." Economic Geology 91, no. 1 (February 1, 1996): 111–21. http://dx.doi.org/10.2113/gsecongeo.91.1.111.

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Eicker, A., and Derek A. Reid. "Clathrus transvaalensis, a new species from the Transvaal South Africa." Mycological Research 94, no. 3 (April 1990): 422–23. http://dx.doi.org/10.1016/s0953-7562(09)80372-9.

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Klapwijk, Menno. "Minute Glass Beads from the North-Eastern Transvaal, South Africa." South African Archaeological Bulletin 46, no. 153 (June 1991): 34. http://dx.doi.org/10.2307/3889011.

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Dissertations / Theses on the topic "Hydrogeology – South Africa – Transvaal"

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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 interbedded chert and dolomites may result from minor cyclical marine trangressions and regressions or be a geochemical response to the periodic flooding of freshwater carbonate and flats and tidal deltas. These fundamental geological differences are reflected in correspondingly different development of karst. Transmissive zones in the chert poor units are generally discrete solution features in massive dolomite, 1 m to 2 m thick. Transmissive zones in the chert rich units comprise thick (up to 60 m) and extremely weathered chert with a high void content resulting from the dissolution of carbonate material. The relative importance of various geological features to the development of the karst was assessed using information from two extensive hydrogeological investigations of the area. From the results it bas been concluded that lithostratigraphy, including the occurrence of palaeokarstic horizons, is the major control of aquifer properties. All other geological features are of lesser importance but may nevertheless be associated with enhanced transmissivi ties in any given unit. Faults and lineaments are the structural features most widely associated with highly transmissive zones. The knowledge gained in this study is applicable elsewhere as the principal hydrogeological characteristics of the study area are common to many of the Chuniespoort Group aquifers in the Pretoria - Witwatersrand - Vereeniging Region.
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Bowen, Teral Barbara. "The geochemical stratigraphy of the volcanic rocks of the Witwatersrand triad in the Klerksdorp area, Transvaal." Thesis, Rhodes University, 1985. http://hdl.handle.net/10962/d1004932.

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This study lias initiated with the aim of identifying the existence of any geochemical criteria which may be used to distinguish between the various volcanic formations within the Witwatersrand triad. The Witwatersrand triad comprises three sequences: the Dominion Group at the base, the Witwatersrand Supergroup in the middle, and the Ventersdorp Supergroup at the top. It is underlain by Archaean basement rocks, and covered by rocks of the Transvaal sequence. The Dominion Group consists of the sedimentary Rhenosterspruit quartzite Formation at the base, overlain by a bimodal component of the Syferfontein Porphyry succession of lavas. Basaltic lavas are the major component of the Rhenosterhoek Formation, while the overlying Formation consists primarily of dacitic porphyries. Intercalations of one lava type within the other are common, however, so each formation is not the exclusive domain of only one lava type. The Witwatersrand Supergroup, a predominantly argillaceous and arenaceous sequence, contains two narrow volcanic horizons, one of wbich, the Jeppestown Amygdaloid (now Crown Formation), consisting of tholeiitic andesites, occurs in the study area. The overlying Ventersdorp Supergroup has, at its base, the basaltic Klipriviersberg Group, of which four out of six formations are present in the study area, namely, the Alberton, Orkney, Loraine and Edenville Formations. This group is succeeded unconformably by the PIatberg Group, consisting of the sedimentary Kameel doorns Formation, followed by the (informal) Goedgenoeg, Makwassie Quartz Porphyry and Rietgat Formations. The Goedgenoeg and Rietgat Formations are basaltic, whil e the Mawassie rocks range from basaltic to dacitic, the majority being tholeiitic andesites and andesites . The Pniel sequence at the top of the Ventersdorp Supergroup consists of the sedimentary Bothaville Formation, and the Allarridge Formation, the lavas of which are basaltic with some andesitic tendencies. A well-defined geochemical stratigraphy was found to exist. From the eleven volcanic formations examined, nine distinct geochemical units emerged, as the Loraine and Edenville Formations were found to have the same geochemical characteristics, as did the Goedgenoeg and Rietgat Formations. Despite having undergone law-grade greenschist facies metamorphism, very clear variation patterns with height are displayed by the immobile elements Ti, P, Kb, Zr and Y, and the light rare earth elements La, Ce and Nd. In contrast, much scatter was observed in the variation patterns of Na, K, Mn, Ba and Rb. Three techniques were employed to effect discrimination between formations - orthosonal discrimination, interelement and ratio vs ratio plots, and discriminant analysis. Confidence limits placed on normal probability plots served to isolate outlier samples for further examination by the various discrimination techniques. A successful test of the efficacy of the discrimination techniques was afforded when fourteen samples from an unknown succession were positively identified as representative of the Klipriviersberg Group
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Riganti, Angela. "The geology and geochemistry of the north-western portion of the Usushwana Complex, South-Eastern Transvaal." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1005570.

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The 2.9 Ga old Usushwana Complex in the Piet Retief-Amsterdam area (south-eastern Transvaal) represents an exposed segment of a layered intrusion. It has the form of a dyke-like body elongated in a northwesterly direction, and extends to an estimated depth of 3000 -5500 m. Lithologically, the Complex consists of a cumulate succession of mafic rocks capped by granitoids and has intruded along the contact between the basement and the supracrustal sequences of the Kaapvaal Craton. Differentiation of an already contaminated gabbroic magma resulted in an ordered stratigraphic sequence comprising progressively more evolved lithotypes, with at least two imperfect cyclic units developed over a stratigraphic thickness of about 700 metres (Hlelo River Section). Meso- to orthocumulate textured gabbros and quartz gabbros grade upwards into magnetite- and apatite-bearing quartz gabbros, interlayered with discontinuous magnetitite horizons. The gabbros in turn grade into hornblende-rich, granophyric granodiorites. The differentiation process is regarded as having been considerably enhanced by the assimilation of acidic material, derived by partial melting of the felsic country rocks at the roof of the magma chamber. Recrystallisation of these rocks gave rise to the microgranites that locally overlie the granodiorites. Mineralogical, textural and geochemical features indicate a relatively advanced fractionation stage, suggesting that the exposed sequence of the Usushwana Complex in the study area represents the upper portion of the intrusion. No significant mineralised occurrences were identified. However, on the basis of similarities between the Usushwana Complex and other mafic layered intrusions which host significant ore deposits, it is suggested that economic concentrations of base metal(Cu-Ni) sulphides, PGE and chromitites are likely to be developed at lower stratigraphic levels.
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Crous, Stephanus Philippus. "The geology, geochemistry and stratigraphic correlations of the farm Rietfontein 70 JS on the south -eastern flank of the Dennilton Dome, Transvaal, South Africa." Thesis, Rhodes University, 1996. http://hdl.handle.net/10962/d1005572.

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The study area is located between Loskop Dam and the town of Groblersdal, on the southeastern flank of the Dennilton dome, and is underlain by lithologies of the Pretoria Group, Bushveld Complex mafics and ultramafics and acid lavas that resort under the Rooiberg felsites. Field work comprised of geological mapping, soil-, hard-rock- and stream sediment geochemistry, various geophysical techniques and diamond drilling. The rocktypes that resembles the Rustenburg Layered Suite on the farm Rietfontein 70JS is subdivided into a Mixed Zone, Critical Zone and Main Zone, on grounds of geochemical and certain geophysical attributes. The Mixed Zone that overlies the Bushveld Complex floor-rocks, is furthermore separated into an i) Lower-, ii) Middle- and, iii) Upper Unit. The Lower Unit of the Mixed Zone consists primarily of magnetite-gabbros, iron-rich pegmatites, harzburgites and feldspathic pyroxenites. The Fe-rich constituents of this stratigraphic horizon generates a pronounced magnetic anomaly within the study area. On the basis of; amongst other parameters, Zr/Rb and Sr/Al₂0₃ ratios, the magnetite-gabbros are postulated to conform to lithotypes in the vicinity of magnetite layers 8 to 14 of Upper Zone Subzone B in a normal Bushveld Complex stratigraphical scenario. Similarly, it is argued that the feldspathic pyroxenites and norites that display elevated chromium values are analogues to normal Critical Zone rocktypes of the Rustenburg Layered Snite. A more elaborate and precise stratigraphic correlation for the Critical zone was, however, not possible. It is advocated that a volume imbalance was created by the hot, ascending mafic magmas of the intruding Bushveld Complex, resulting in the updoming of certain prevailing basement features such as the Dennilton Dome. In addition to this ideology, it is proposed that the Mineral Range Fragment is in fact a large xenolith underlain by mafics, after being detached from the Dennilton Dome during the intrusion event. Evidence generated by this study unequivocally indicate that the potential for viable PGE's, Ni, Cu and Au within a Merensky Reef- type configuration or a Plat Reef-type scenario under a relatively thin veneer of acid Bushveld Complex roof-rocks on the eastern flank of the Dennilton Dome, appears feasible.
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Carruthers, Jane. "Game protection in the Transvaal 1846 to 1926." Thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/23736.

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Faure, Kevin. "A stable isotope study of the Kaap Valley Tonalite, Barberton Mountain Land, South Africa." Master's thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/15849.

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Bibliography: pages 100-109.
The Kaap Valley Tonalite (KVT) was a homogenous hornblende+ biotite tonalite that had been subjected to overail propylitic and potassic alteration. Petrographic studies reveal that carbonate alteration and increased proportions of hydrous minerals occur along the KVT and Barberton greenstone belt contact zone, and along major shear zones within the KVT.
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Brennan, Michael Brendan. "The genesis of ilmenite-rich heavy mineral deposits in the Bothaville/Delmas area, and an economic analysis of titanium, with particular reference to the Dwarsfontein deposit, Delmas district." Thesis, Rhodes University, 1991. http://hdl.handle.net/10962/d1005561.

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A number of ilmenite-rich heavy mineral deposits occur along the northern margin of the intracratonic Karoo basin, and are hosted by the fluvio-deltaic Middle Ecca Group. Coastal reworking of delta front sands within a regressive, microtidal shoreline may be considered as a depositional model for the development of the heavy mineral deposits. An economic analysis of titanium suggests long term positive demand, and sustained high prices for this commodity. An evaluation of the Dwarsfontein ilmenite-rich heavy mineral deposit, using available data, indicates how important it is for deposits of this type to be situated close to an upgrading plant or export harbour.
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Kriel, Lize. "'N Vergelyking tussen Colin Rae en Christoph Sonntag se weergawes van die Boer-Hananwa-oorlog van 1894." Pretoria : [S.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-10192005-111653.

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Teigler, Bernd. "Mineralogy, petrology and geochemistry of the lower and lower critical zones, Northwestern Bushveld Complex." Thesis, Rhodes University, 1991. http://hdl.handle.net/10962/d1005590.

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This study of the lower part of the Rustenburg Layered Suite in the Western Bushveld Complex is based mainly on drill core samples from three localities, which are approximately 130 km apart. The NG-sequence, situated in the northwestern sector of the complex (Union Section, R.P.M.) extends from the floor of the complex to the base of the upper Critical Zone. The sequence is ca. 1800 m thick and it comprises mainly ultramafic cumulates, namely pyroxenites, olivine pyroxenites, harzburgites and dunites. Norites and anorthos ites are present only in minor proportion. Within the upper half of the NG-sequence ten prominent chromitite layers are correlated with the LGI MG4-interval. Correlation is also established between published sequences and the two other sequences studied, located 8 km and 55 km, respectively, east of Rustenburg. Whole-rock chemical data (major and trace elements), microprobe and Sr isotope data are presented. Petrographic studies provide modal analyses and measurements of grain size. All petrographic, mineralogical and other geochemical data point to an origin of the cumulates of the NG-sequence by crystallization from liquids of the U-type lineage and derivatives thereof. No evidence is found for the involvement of parental liquids with a distinctly different composition or crystallization order (A-liquids). However, subtle compositional variations of the parental liquids are evident in slight changes of the Cr content in orthopyroxene or in variations of Sr isotope ratio. The NG-sequence is characterized by intervals with reversed fractionation trends caused by repeated influxes of pristine magma (during periods of high magmatic activity) resulting in a high degree of rejuvenation. These intervals are overlain by others with a normal fractionation trend, interpreted as cumulates formed in periods with low or no magmatic activity, in which fractional crystallization controlled bulk composition of the evolving liquid. The Lower Zone in the NG-sequence is dominated by a progressive shift towards more primitive compositions, while in the Critical Zone fractionation was the major operating process in the magma chamber. However, during deposition of the pyroxenitic lower Critical Zone several replenishment events occurred, during which fresh Cr-rich magma was emplaced. Massive chromitite layers were deposited after mixing between the newly emplaced magma and the resident residual liquid shifted bulk compositions into the primary field of chrome-spinel. Cumulus plagioclase crystallized after bulk composition of the residual liquid was driven to the orthopyroxene plagioclase cotectic by continued fractional crystallization; this occurred once in the Lower Zone, yielding a single, thin norite layer, and again in the upper Critical Zone of the NG-sequence. A facies model is proposed based on the stratigraphic and compositional variations along strike in the Western Bushveld Complex. This model explains the variations by means of the position of the sequence with regard to a feeder system. The olivine- and orthopyroxene-rich, but plagioclase-poor NG-sequence represents the proximal facies, while the SF-sequence (poor in ferromagnesian phases, but plagioclase-rich) is developed as a distal facies, close to the Brits graben.
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De, Bever Johannes Nicolaas. "An overview of the early-proterozoic, auriferous Black Reef placer in the Transvaal Basin." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1005596.

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Books on the topic "Hydrogeology – South Africa – Transvaal"

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Creswicke, Louis. South Africa and the Transvaal war. Toronto: Publisher's Syndicate, 1993.

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Tyler, N. 2200Ma-Old "trace fossils" from the Transvaal Supergroup in the Transvaal. Johannesburg: University of the Witwatersrand, 1986.

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Mitchell, James H. Tartan on the veld: The Transvaal Scottish, 1950₋1993. Johannesburg: Transvaal Scottish Regimental Council, 1994.

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Hendriks, P. G. Waai, vierkleur van Transvaal. Morgenzon: Oranjewerkers Promosies, 1991.

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Dorothea Sarah Florence Alexandra Phillips. Some South African recollections. London: Longmans, Green, 1989.

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Harley, M. The mineralisation at Elandshoogte Gold Mine, Eastern Transvaal, South Africa. Johannesburg: University of the Witwatersrand, 1990.

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Marshall, T. R. The alluvial-diamond fields of the western Transvaal. Johannesburg: Economic Geology Research Unit, University of the Witwatersrand, 1986.

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Marshall, T. R. The alluvial-diamond fields of the western Transvaal. Johannesburg: Economic Geology Research Unit, University of the Witwatersrand, 1986.

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Funston, Malcolm. Bushveld trees: Lifeblood of the Transvaal lowveld. Vlaeberg: Fernwood Press, 1993.

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Sammy Marks: The uncrowned king of the Transvaal. Cape Town: D. Philip, 1991.

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Book chapters on the topic "Hydrogeology – South Africa – Transvaal"

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Hofmann, Axel. "Transvaal Supergroup, South Africa." In Encyclopedia of Astrobiology, 1709. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11274-4_1609.

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Hofmann, Axel. "Transvaal Supergroup, South Africa." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_1609-3.

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Hofmann, Axel. "Transvaal Supergroup, South Africa." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2020. http://dx.doi.org/10.1007/978-3-642-27833-4_1609-4.

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Hofmann, Axel. "Transvaal Supergroup, South Africa." In Encyclopedia of Astrobiology, 2550. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_1609.

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Bright, Rachel K. "The Transvaal Labour ‘Problem’ and the Chinese Solution." In Chinese Labour in South Africa, 1902–10, 22–37. London: Palgrave Macmillan UK, 2013. http://dx.doi.org/10.1057/9781137316578_3.

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Wade, Peter, and Henk Coetzee. "Risk Assessment of Uranium in Selected Gold Mining Areas in South Africa." In Uranium, Mining and Hydrogeology, 141–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-87746-2_21.

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Coetzee, Henk, Nicolene van Wyk, Peter Wade, Patrich Holmstrom, Håkan Tarras-Wahlberg, and Shane Chaplin. "Migration of uranium in groundwater in three naturally occurring anomalous areas in South Africa." In Uranium, Mining and Hydrogeology, 653–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-87746-2_82.

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van Wyk, Nicolene, and Henk Coetzee. "The distribution of uranium in groundwater in the Bushmanland and Namaqualand areas, Northern Cape Province, South Africa." In Uranium, Mining and Hydrogeology, 639–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-87746-2_80.

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Winde, Frank. "Peat deposits as natural uranium filters? - First results from a case study in a dolomitic gold mining area of South Africa." In Uranium, Mining and Hydrogeology, 499–514. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-87746-2_62.

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Cole, M. M. "The vegetation over mafic and ultramafic rocks in the Transvaal Lowveld, South Africa." In The Ecology of Areas with Serpentinized Rocks, 333–42. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-3722-5_13.

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Conference papers on the topic "Hydrogeology – South Africa – Transvaal"

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Dowdy, T., L. C. Kah, W. Altermann, and J. H. Alexander. "EXPLORATION OF POTENTIAL SEISMITES: ARCHEAN NAUGA FORMATION, TRANSVAAL SUPERGROUP, SOUTH AFRICA." In Joint 69th Annual Southeastern / 55th Annual Northeastern GSA Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020se-345256.

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Ünsal, Tuğçe, and Kübra Yazıcı. "The Importance of Gerbera as a Cut Flower and Advances of It in Scientific Research." In International Students Science Congress. Izmir International Guest Student Association, 2021. http://dx.doi.org/10.52460/issc.2021.010.

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Gerbera, a member of the Asteraceae family, has approximately 30 species known in nature. It has spread naturally in South Africa, Africa, Madagascar, and tropical Asia. The first scientific description of gerberas is J.D. Described by Hooker. It is also known as the Transvaal Daisy or Barberton Daisy. It is the second most produced cut flower after carnation as cut flower in our country. We can divide the scientific studies conducted on the gerbera plant into four groups. Studies in general; To produce 1st quality gerbera by providing the growth of plant height, flower diameter and flower stem with growth regulators, to obtain fast and many plants with tissue culture, to bring new products to the product range with breeding studies and to maintain the vitality of the plant in the process from harvest to consumer It is based on increasing the life of the vase and introducing new solutions to the market. This study was conducted to emphasize the importance of Gerbera as a cut flower and its developments in scientific research.
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