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Journal articles on the topic 'Granite – South Africa'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 January 2023

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1

de Beer, C. H., and P. H. Macey. "Lithostratigraphy of the Mesoproterozoic Windpoort Granite (Spektakel Suite), western Namaqualand, South Africa." South African Journal of Geology 122, no. 2 (2019): 249–56. http://dx.doi.org/10.25131/sajg.122.0017.

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AbstractThe Windpoort Granite is a porphyritic, leucocratic granite belonging to the Spektakel Suite, a group of late- to post-tectonic granites intruded into the orthogneisses and supracrustal metamorphic rocks in western Namaqualand. Like other granites of this type, it is devoid of penetrative tectonic foliation, at most displaying a magmatic foliation parallel to the boundaries of the intrusion. Its main characteristic setting it apart from other Spektakel Suite granites in western Namaqualand is its tightly packed arrangement of small stubby alkali feldspar phenocrysts. Its U-Pb LA-ICPMS

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2

Vonopartis, Leonidas, Paul Nex, Judith Kinnaird, and Laurence Robb. "Evaluating the Changes from Endogranitic Magmatic to Magmatic-Hydrothermal Mineralization: The Zaaiplaats Tin Granites, Bushveld Igneous Complex, South Africa." Minerals 10, no. 4 (2020): 379. http://dx.doi.org/10.3390/min10040379.

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The stanniferous granites of the Zaaiplaats Tin Field are part of the A-Type Lebowa Granite Suite, within the greater Bushveld Igneous Complex of northeast South Africa. The tin field comprises three granites: (1) the Nebo, a leucocratic, equigranular biotite granite; (2) The brick-red hypidiomorphic Bobbejaankop granite, which is extensively microclinized with chloritized biotite and characteristic synneusis-textured quartz; and (3) The variably altered roof facies of the Bobbejaankop granite known as the Lease microgranite. The Bobbejaankop and Lease granites were both extensively mined for

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3

Cole, Doug. "Heritage stone in Cape Town, South Africa." Geological Society, London, Special Publications 486, no. 1 (2018): 305–23. http://dx.doi.org/10.1144/sp486.3.

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AbstractCape Town was founded in 1652 and many of its historical buildings are constructed of local natural stone. Malmesbury Group slate was exploited from 1666 and used to build Cape Town Castle, which is the oldest building in Cape Town. Two other local stones, Cape granite and Table Mountain sandstone were utilized for buildings from 1850. A medium-grained granite named Paarl Grey was exploited from an area adjacent to the town of Paarl, 50 km east of Cape Town, from 1890. This granite is the most extensively-used natural stone in Cape Town.The resource fields of natural stone near Cape To

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Macey, P. H., R. J. Thomas, H. P. Smith, D. Frei, and P. J. le Roux. "Lithostratigraphy of the Naros Granite (Komsberg Suite), South Africa and Namibia." South African Journal of Geology 124, no. 3 (2021): 795–804. http://dx.doi.org/10.25131/sajg.124.0040.

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Abstract The Naros Granite occurs as a large, northwest-trending ovoid batholith roughly 30 km long and 15 km wide straddling the Orange River border between South Africa and Namibia, 25 km northeast of Onseepkans. It consists mainly of a leucocratic to mesocratic grey, coarse-grained equigranular hornblende-biotite granite-granodiorite that is locally mildly feldspar porphyritic. Small, ovoid mafic autoliths are common and characteristic of the Naros Granite. The composition of the unit varies from granite to granodiorite with a minor leucogranitic phase observed along the southern margin of

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Clemens, J. D. "Preface." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 100, no. 1-2 (2009): v—vi. http://dx.doi.org/10.1017/s175569100901620x.

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The Sixth Hutton Symposium on the Origin of Granites and Related Rocks was held on July 2–6, 2007 at the University of Stellenbosch, South Africa, founded on granite, nestled at the feet of towering mountains and fringed by the rolling winelands of the Western Cape. This Special Issue opens with Master’s historical account of how the Cape granites influenced 18th and early 19th century thinking on the origins of these rocks. The fascinating fact is that the granites of the Western Cape were apparently the first intrusive granites recognised outside Britain. The balance of the volume contains a

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Robb, L. J., F. M. Meyer, C. J. Hawkesworth, and N. J. Gardiner. "Petrogenesis of Archaean granites in the Barberton region of South Africa as a guide to early crustal evolution." South African Journal of Geology 124, no. 1 (2021): 111–40. http://dx.doi.org/10.25131/sajg.124.0021.

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ABSTRACT The Barberton region of South Africa is characterized by a broad variety of granite types that range in age from ca. 3.5 Ga to 2.7 Ga and reflect the processes involved in the formation of Archaean continental crust on the Kaapvaal Craton. These granites are subdivided into three groups, as follows: A tonalite-trondhjemite-granodiorite (TTG) suite diapirically emplaced at 3 450 Ma and 3 250 Ma into pre-existing metamorphosed greenstone belt material. TTG melts were derived from melting amphibolite in the lower crust, with individual plutons being emplaced at various crustal levels. Th

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Bulakh, Andrey, Paavo Härmä, Elena Panova, and Olavi Selonen. "Rapakivi granite in the architecture of St Petersburg: a potential Global Heritage Stone from Finland and Russia." Geological Society, London, Special Publications 486, no. 1 (2020): 67–76. http://dx.doi.org/10.1144/sp486-2018-5.

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AbstractRapakivi granites were in use during the Middle Ages in Finland. Their most spectacular use, however, was for structures built in St Petersburg between 1760 and 1917. Remarkable examples are the majestic and slender Alexander Column and the 112 columns of St Isaac's Cathedral. All Rapakivi granite was extracted from the Wiborg Rapakivi granite batholith in several quarries around the municipality of Virolahti in SE Finland (old Russia). Today, the 1640 Ma-old Wiborg batholith is the most important area for natural stone production in Finland and in the Leningrad region, Russian Federat

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8

Moeletsi, R. S., and S. G. Tesfamichael. "ASSESSING LAND COVER CHANGES CAUSED BY GRANITE QUARRYING USING REMOTE SENSING." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-3/W2 (November 16, 2017): 119–24. http://dx.doi.org/10.5194/isprs-archives-xlii-3-w2-119-2017.

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Dimension stone quarrying in the area between Rustenburg and Brits in the North West Province of South Africa has been in existence for over 70 decades. The unique characteristics of the granite deposits in South Africa resulted in making the country a global producer of the granite rocks. This led to intensified quarrying activities between Rustenburg and Brits town. However, this surface mining method, has a potential to impact the environment in a negative way causing loss in vegetation, depletion of natural resources, loss of scenic beauty and contamination of surface water resources. To a

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le Roux, Rikus, Jacques Bezuidenhout, and Hennie Smit. "INDOOR RADON MEASUREMENTS FOR THE SOUTH AFRICAN WEST COAST PENINSULA." Radiation Protection Dosimetry 191, no. 2 (2020): 144–49. http://dx.doi.org/10.1093/rpd/ncaa139.

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Abstract Granite commonly contains high concentrations of uranium, with consequent high exhalation of radon. The geology of the West Coast peninsula of South Africa is dominated by granite, and a recent article predicted potentially high indoor radon concentrations in this region’s two largest towns, Vredenburg and Saldanha. This research aimed to measure indoor radon levels in these towns. Measurements were first done for a minimum of 3 d during warmer months, with houses typically being more ventilated. Thirty-four homes in Vredenburg and 27 in Saldanha were measured, and the average indoor

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10

Thomas, R. J. "Geochronology of the Sikombe Granite, Transkei, Natal Metamorphic Province, South Africa." South African Journal of Geology 106, no. 4 (2003): 403–8. http://dx.doi.org/10.2113/106.4.403.

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11

BROWNING, C., and P. H. MACEY. "LITHOSTRATIGRAPHY OF THE GEORGE PLUTON UNITS (CAPE GRANITE SUITE), SOUTH AFRICA." South African Journal of Geology 118, no. 3 (2015): 323–30. http://dx.doi.org/10.2113/gssajg.118.3.323.

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12

Poujol, M., J. Jaguin, J.-F. Moyen, P. Boulvais, and J.-L. Paquette. "Archaean S-Type granites: petrology, geochemistry and geochronology of the Lekkersmaak and Willie plutons, Kaapvaal Craton, South Africa." South African Journal of Geology 124, no. 1 (2021): 87–110. http://dx.doi.org/10.25131/sajg.124.0004.

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Abstract S-type granites correspond to reworking of pre-existing continental material and form by partial melting of (meta)sediments. Early-to-mid Archaean S-type granites are rare and are more frequently found, usually as relatively small intrusions, during the Neoarchaean and the Archaean-Proterozoic transition. In the context of Archaean geology, their paucity is therefore significant, in that it matches the uncommon nature of processes during this period. In this study, we focus on the Late Mesoarchaean Willie pluton and Neoarchaean Lekkersmaak pluton, which crop out to the south of the Mu

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13

Wang, Shengyun, Honghai Fan, Jinyong Chen, and Donghuan Chen. "Zircon U–Pb Geochronology, Whole-Rock Geochemistry and Petrogenesis of Biotite Granites in the Gaudeanmus Area, Namibia." Minerals 10, no. 1 (2020): 76. http://dx.doi.org/10.3390/min10010076.

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The Gaudeanmus area is located at the southern Central Zone of the Damara orogenic belt in south-western Africa. In this paper, we investigate the whole rock major and trace element compositions and Sr–Nd–Pb isotopic compositions of the biotite granite, and determine the age of the samples utilising U–Pb zircon dating methods. Our results provide an LA–collector inductively plasma mass spectrometer (ICP–MS) zircon U–Pb age for the biotite granite of 540 ± 4 Ma (i.e., earliest Cambrian). The biotite granites show the characteristics of metaluminous compositions belonging to high-K calc–alkaline

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14

Scheepers, R., and A. N. Nortjé. "Rhyolitic ignimbrites of the Cape Granite Suite, southwestern Cape Province, South Africa." Journal of African Earth Sciences 31, no. 3-4 (2000): 647–56. http://dx.doi.org/10.1016/s0899-5362(00)80012-3.

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15

Mutileni, N. G., B. A. Egan, and D. I. Thompson. "Veld management strategies of the endangered Woodbush Granite Grassland, Limpopo, South Africa." South African Journal of Botany 109 (March 2017): 357–58. http://dx.doi.org/10.1016/j.sajb.2017.01.137.

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16

Groenewald, C. A., and P. H. Macey. "Lithostratigraphy of the Mesoproterozoic Yas-Schuitdrift Batholith, South Africa and Namibia." South African Journal of Geology 123, no. 3 (2020): 431–40. http://dx.doi.org/10.25131/sajg.123.0029.

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Abstract The granitic and leucogranitic Yas and Schuitdrift Gneisses occur together as a large ovoid pre-tectonic batholith that crosses the Orange River border between South Africa and Namibia. They occur in the central parts of the Kakamas Domain in the Namaqua Sector of the Namaqua-Natal Metamorphic Province where they intrude, and are deformed together with, slightly older (~1.21 Ga) orthogneisses and granulite-facies metapelitic gneisses. The Yas Gneiss occurs mainly on the outer perimeter and northern parts of the batholith and comprises equigranular leucogranite gneiss and biotite grani

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17

Jordaan, Marie, and Abraham E. Van Wyk. "Gymnosporia swazica (Celastraceae), a new species from southern Africa." Phytotaxa 192, no. 4 (2015): 296. http://dx.doi.org/10.11646/phytotaxa.192.4.7.

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Gymnosporia swazica, a new restricted-range southern African species, is described and illustrated here. Known from only a few localities in Swaziland and bordering parts of South Africa (Mpumalanga and northeastern KwaZulu-Natal), G. swazica grows as an understorey shrub or small tree in forest, often among granite boulders. Diagnostic characters for G. swazica include chartaceous leaves, usually shorter than 25 mm, 3-valved capsules usually 6–7 mm long, which are smooth, green turning yellow, and a white aril partially covering the brownish seed. Its closest relative appears to be G. buxifol

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18

Vonopartis, L. C., R. Booysen, P. A. M. Nex, J. A. Kinnaird, and L. J. Robb. "Combined satellite and portable XRF exploration mapping of the Zaaiplaats tin field, South Africa." South African Journal of Geology 125, no. 1 (2022): 45–60. http://dx.doi.org/10.25131/sajg.125.0006.

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Abstract The Zaaiplaats tin field is host to two of the historically most significant tin mines in South Africa. The geological maps of Zaaiplaats and Groenfontein have not been updated since the 1980s and 1950s respectively and warrant a renewed investigation. Cassiterite is hosted in the Bobbejaankop and Lease granites, of the Zaaiplaats and Groenfontein tin mines, which are part of the Lebowa Granite Suite of the Bushveld Complex. Tin mineralisation is primarily hosted as low-grade disseminations and within networks of high-grade hydrothermal pipes and lenticular ore-bodies. One difficulty

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Roelofse, F., H. de Bruiyn, D. Cornell, and M. Kristofferson. "Lithostratigraphy of the Palaeoproterozoic Verena Granite." South African Journal of Geology 123, no. 1 (2020): 117–28. http://dx.doi.org/10.25131/sajg.123.0007.

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Abstract The Verena Granite forms part of the Palaeoproterozoic Lebowa Granite Suite of the Bushveld Complex and was named after the village of Verena in the Mpumalanga Province of South Africa. It occurs over an area of ~600 km2 and is intrusive into the Rooiberg Group, the Rashoop Granophyre Suite and the Klipkloof Granite. It is in turn intruded by the Makhutso Granite, the youngest known granite of the Lebowa Granite Suite. The Verena Granite is characterised by its coarse to very coarse-grained nature, its pinkish to reddish colours and its porphyritic texture defined by the presence of l

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HARRIS, C., and J. VOGELI. "OXYGEN ISOTOPE COMPOSITION OF GARNET IN THE PENINSULA GRANITE, CAPE GRANITE SUITE, SOUTH AFRICA: CONSTRAINTS ON MELTING AND EMPLACEMENT MECHANISMS." South African Journal of Geology 113, no. 4 (2010): 401–12. http://dx.doi.org/10.2113/gssajg.113.4.401.

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21

Grantham, G. H., A. R. Allen, D. H. Cornell, and C. Harris. "Geology of Nicholson's point granite, Natal Metamorphic Province, South Africa: the chemistry of charnockitic alteration and origin of the granite." Journal of African Earth Sciences 23, no. 3 (1996): 465–84. http://dx.doi.org/10.1016/s0899-5362(97)00013-4.

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22

Ferré, E. C., and L. Améglio. "Preserved magnetic fabrics vs. annealed microstructures in the syntectonic recrystallised George granite, South Africa." Journal of Structural Geology 22, no. 8 (2000): 1199–219. http://dx.doi.org/10.1016/s0191-8141(00)00026-2.

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23

Grobler, D. F., and F. Walraven. "Geochronology of Gaborone Granite Complex extensions in the area north of Mafikeng, South Africa." Chemical Geology 105, no. 4 (1993): 319–37. http://dx.doi.org/10.1016/0009-2541(93)90134-5.

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24

Westraat, JanusD, AlexanderF M. Kisters, Marc Poujol, and Gary Stevens. "Transcurrent shearing, granite sheeting and the incremental construction of the tabular 3.1 Ga Mpuluzi batholith, Barberton granite–greenstone terrane, South Africa." Journal of the Geological Society 162, no. 2 (2005): 373–88. http://dx.doi.org/10.1144/0016-764904-026.

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25

Farina, Federico, Gary Stevens, and Arnaud Villaros. "Multi-batch, incremental assembly of a dynamic magma chamber: the case of the Peninsula pluton granite (Cape Granite Suite, South Africa)." Mineralogy and Petrology 106, no. 3-4 (2012): 193–216. http://dx.doi.org/10.1007/s00710-012-0224-8.

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26

Robb, L. J., L. A. Freeman, and R. A. Armstrong. "Nature and longevity of hydrothermal fluid flow and mineralisation in granites of the Bushveld Complex, South Africa." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 91, no. 1-2 (2000): 269–81. http://dx.doi.org/10.1017/s0263593300007434.

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The Lebowa Granite Suite of the Bushveld Complex is a large, 2054 Ma old, A-type batholith, characterised by numerous relatively small magmato-hydrothermal, polymetallic ore deposits. The mineralisation is represented by a three-stage paragenetic sequence: early magmatic Sn-W-Mo-F ores (600°C > T > 400°C), followed by a Cu-Pb-Zn-As-Ag-Au paragenesis (400°C > T > 200°C) and then late-stage Fe-F-U mineralisation (< 200°C). The first stage of mineralisation (typified by the endogranitic Zaaiplaats tin deposit) is related to incompatible trace element concentration during crystal fr

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Moore, Iain S. F., Elizabeth A. Brown, Ian R. H. Telford, and Jeremy J. Bruhl. "Chromosome evolution in Bulbine glauca (Asphodelaceae or Xanthorrhoeaceae subfam. Asphodeloideae) indicates six species, not one." Australian Journal of Botany 64, no. 3 (2016): 206. http://dx.doi.org/10.1071/bt15242.

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The genus Bulbine Wolf has ~130 species in Africa and only seven species in Australia. Base chromosome numbers in African and Australian Bulbine are x = 7 and x = 12, respectively. This raises the possibility of Australian Bulbine being of polyploidy origin or, alternatively African Bulbine may have evolved through dysploid reduction. Previous chromosome counts in Bulbine glauca (Raf.) E.M.Watson were predominantly 2n = 46, with aneuploid numbers of 2n = 45, 44, 48, 47, 40 and 41 also being encountered within and between populations. Novel chromosome counts are presented here for a wide sample

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Clemens, J. D., and G. Stevens. "S- to I- to A-type magmatic cycles in granitic terranes are not globally recurring progressions. The cases of the Cape Granite Suite of Southern Africa and central Victoria in southeastern Australia." South African Journal of Geology 124, no. 3 (2021): 565–74. http://dx.doi.org/10.25131/sajg.124.0007.

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Abstract Recurring progression from S- to I- to A-type granites has been proposed for a subset of granitic rocks in eastern Australia. The wider applicability and the validity of this idea is explored using the Cape Granite Suite (CGS) of South Africa and the granitic and silicic volcanic rocks of central Victoria, in southeastern Australia. Within the CGS there is presently little justification for the notion that there is a clear temporal progression from early S-type, through I-type to late A-type magmatism. The I- and S-type rocks are certainly spatially separated. However, apart from a si

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Lana, C. "Geology and geochemistry of a granite-greenstone association in the southeastern Vredefort dome, South Africa." South African Journal of Geology 106, no. 4 (2003): 291–314. http://dx.doi.org/10.2113/106.4.291.

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Walraven, F. "Notes on the age and genetic relationships of the Makhutso Granite, Bushveld Complex, South Africa." Chemical Geology: Isotope Geoscience section 72, no. 1 (1988): 17–28. http://dx.doi.org/10.1016/0168-9622(88)90033-4.

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Dietvorst, Eugene. "Geochronology of Gaborone Granite Complex extensions in the area north of Mafikeng, South Africa — Comments." Chemical Geology 122, no. 1-4 (1995): 285–87. http://dx.doi.org/10.1016/0009-2541(94)00150-7.

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Grobler, D. F., and F. Walraven. "Geochronology of Gaborone Granite Complex extensions in the area north of Mafikeng, South Africa — Reply." Chemical Geology 122, no. 1-4 (1995): 288–90. http://dx.doi.org/10.1016/0009-2541(94)00151-w.

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33

Strydom, Johnnie, Jared da Silva, and Odilon Kongolo. "Emergency rehabilitation of Selby interchange on M2, in Johannesburg, South Africa." MATEC Web of Conferences 364 (2022): 04001. http://dx.doi.org/10.1051/matecconf/202236404001.

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In this paper, the retrofitting and rehabilitation of the M2 Selby interchange, on the M2 in Johannesburg, Gauteng, South Africa, is presented. After noting large shear cracks on the pier columns, the highway had to be closed down, for 10 months. The client for the project was the Johannesburg Roads Agency (JRA), the contractor was Stefanutti Stocks Civils, and the consultant was WSP. The project commenced with the design of jacking towers which were used to jack up and support the drop-in slabs. The support system was designed to be used as a kit that can be reused in future. The demolition o

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L. DREYER, LÉANNE, FRANCOIS ROETS, and KENNETH C. OBERLANDER. "Two new Oxalis (Oxalidaceae) species, including 5 varieties, from the Richtersveld of South Africa." Phytotaxa 314, no. 2 (2017): 231. http://dx.doi.org/10.11646/phytotaxa.314.2.4.

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Two new species of Oxalis (Oxalidaceae) from the Richtersveld are described, namely Oxalis canaliculata and O. magnifolia. These widespread species are morphologically distinct and easily identified, but both contain populations in which individuals consistently differ morphologically from typical varieties. The typical variety of Oxalis canaliculata is widespread throughout the Richtersveld, while O. canaliculata var. trifoliolata is known from a single population and O. canaliculata var. graniticola is known only from granite outcrops. Oxalis magnifolia includes the typical variety that is w

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Doggart, S., P. H. Macey, and D. Frei. "Lithostratigraphy of the Mesoproterozoic Twakputs Gneiss." South African Journal of Geology 124, no. 3 (2021): 783–94. http://dx.doi.org/10.25131/sajg.124.0041.

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Abstract The Twakputs Gneiss is a garnetiferous, K-feldspar megacrystic, biotite granite-granodiorite orthogneiss. It represents a major unit in the Kakamas Domain of the Mesoproterozoic Namaqua-Natal Metamorphic Province extending about 250 km between Riemvasmaak in South Africa and Grünau in southern Namibia. The Twakputs Gneiss occurs as foliation-parallel, sheet-like bodies tightly infolded together with granulite-facies paragneisses into which it intrudes along with a variety of other pre-tectonic granite and leucogranite orthogneisses. These rocks were subsequently intruded by late-tecto

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Misra, Saumitra, Jürgen Reinhardt, and Allan H. Wilson. "Petrochemical evolution of the White Mfolozi Granite pluton: Evidence for a late Palaeoarchaean A-type granite from the SE Kaapvaal Craton, South Africa." Lithos 286-287 (August 2017): 480–501. http://dx.doi.org/10.1016/j.lithos.2017.05.022.

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Colgan, M. S., G. P. Asner, S. R. Levick, R. E. Martin, and O. A. Chadwick. "Topo-edaphic controls over woody plant biomass in South African savannas." Biogeosciences Discussions 9, no. 1 (2012): 957–87. http://dx.doi.org/10.5194/bgd-9-957-2012.

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Abstract. The distribution of woody biomass in savannas reflects spatial patterns fundamental to ecosystem processes, such as water flow, competition, and herbivory, and is a key contributor to savanna ecosystem services, such as fuelwood supply. While total precipitation sets an upper bound on savanna woody biomass, the extent to which substrate and terrain constrain trees and shrubs below this maximum remains poorly understood, often occluded by local-scale disturbances such as fire and trampling. Here we investigate the role of hillslope topography and soil properties in controlling woody p

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Colgan, M. S., G. P. Asner, S. R. Levick, R. E. Martin, and O. A. Chadwick. "Topo-edaphic controls over woody plant biomass in South African savannas." Biogeosciences 9, no. 5 (2012): 1809–21. http://dx.doi.org/10.5194/bg-9-1809-2012.

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Abstract. The distribution of woody biomass in savannas reflects spatial patterns fundamental to ecosystem processes, such as water flow, competition, and herbivory, and is a key contributor to savanna ecosystem services, such as fuelwood supply. While total precipitation sets an upper bound on savanna woody biomass, the extent to which substrate and terrain constrain trees and shrubs below this maximum remains poorly understood, often occluded by local-scale disturbances such as fire and trampling. Here we investigate the role of hillslope topography and soil properties in controlling woody p

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Raith, Johann G., and Walter Prochaska. "Tungsten deposits in the Wolfram Schist, Namaqualand, South Africa; strata-bound versus granite-related genetic concepts." Economic Geology 90, no. 7 (1995): 1934–54. http://dx.doi.org/10.2113/gsecongeo.90.7.1934.

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Steiner, K. E. "Three new species of Diascia (Scrophulariaceae) from the Western Cape, South Africa." Bothalia 39, no. 1 (2009): 11–17. http://dx.doi.org/10.4102/abc.v39i1.226.

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Three new annual species of Diascia Link Otto are described from the Western Cape Province of South Africa. D. collina is characterized by greyish magenta flowers with two divergent yellow sacs containing oil-secreting trichomes. It is restricted to granite outcrops in the vicinity of Saldanha Bay, from the West Coast National Park and Langebaan north to Vredenburg. D. pusilla is closely related to D. collina. but differs from that species in having smaller flowers with shorter, ± parallel sacs, and posticous filaments that lack a protuberance where they bend sharply backwards towards the uppe

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Schlag, C., and A. Willgallis. "Similarities in tin mineralization associated with the Brandberg granite of South West Africa/Namibia and granites in northern Nigeria, revealed by geochemical data." Journal of African Earth Sciences (and the Middle East) 7, no. 1 (1988): 307–10. http://dx.doi.org/10.1016/0899-5362(88)90075-9.

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Scheepers, R., R. D. O'Brien, and A. E. Schoch. "An occurrence of bavenite in the Cape Granite Suite, southwestern Cape Province, South Africa, and its implication on the formation of the host pegmatite." South African Journal of Geology 120, no. 2 (2017): 223–30. http://dx.doi.org/10.25131/gssajg.120.2.223.

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Abstract Bavenite, (Ca4[(Al,Be)4(Si9(O,OH)26-n)](OH)2+n), is present in a pegmatite of the Paarl Pluton, a metaluminous I-type granite of Late Precambrian age. We are not aware of any other previous description of a beryllium mineral occurrence in the Cape Granite Suite. The pegmatite consists essentially of quartz and microcline microperthite together with albite, calcite and fluorite. A hydrothermal alteration assemblage of epidote, chlorite and bavenite occurs in vugs and veins within the pegmatite. Stilbite, which is stable below 170ºC, is also present, but not texturally related to the al

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Denge, Elelwani, and Christopher Baiyegunhi. "Geochemical and Petrographical Characteristics of the Madzaringwe Formation Coal, Mudrocks and Sandstones in the Vele Colliery, Limpopo Province, South Africa: Implications for Tectonic Setting, Provenance and Paleoweathering." Applied Sciences 11, no. 6 (2021): 2782. http://dx.doi.org/10.3390/app11062782.

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The sedimentary rocks of the Madzaringwe Formation in the Tuli Basin have been investigated using geochemical and petrographic methods to reveal their source area composition, tectonic setting, provenance and paleoweathering conditions. The petrographic studies show that the rocks consist mostly of clay minerals and quartz. The major elements geochemistry indicates that the rocks of the Madzaringwe Formation have the same source area. Based on the discriminant function plots, it can be inferred that the rocks are of quartzose sedimentary provenance, suggesting that they were derived from a cra

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Kröner, A., J. Wong, and H. Xie. "The oldest granite clast in the Moodies conglomerate, Barberton greenstone belt, South Africa, and its likely origin." South African Journal of Geology 121, no. 1 (2018): 43–50. http://dx.doi.org/10.25131/sajg.121.0001.

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HICKS, N., M. ELBURG, and T. ANDERSEN. "U-PB AND HF ISOTOPE CONSTRAINTS FOR EMPLACEMENT OF THE NKANDLA GRANITE, SOUTHEASTERN KAAPVAAL CRATON, SOUTH AFRICA." South African Journal of Geology 118, no. 2 (2015): 119–28. http://dx.doi.org/10.2113/gssajg.118.2.119.

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Kovaleva, Elizaveta, and Gerlinde Habler. "Spatial distribution of zircon with shock microtwins in pseudotachylite-bearing granite gneisses, Vredefort impact structure, South Africa." Journal of Structural Geology 129 (December 2019): 103890. http://dx.doi.org/10.1016/j.jsg.2019.103890.

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Harris, Chris, Kevin Faure, Roger E. Diamond, and Reyno Scheepers. "Oxygen and hydrogen isotope geochemistry of S- and I-type granitoids: the Cape Granite suite, South Africa." Chemical Geology 143, no. 1-2 (1997): 95–114. http://dx.doi.org/10.1016/s0009-2541(97)00103-4.

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Mutele, Litshedzani, Alazar Billay, and John Paul Hunt. "Knowledge-Driven Prospectivity Mapping for Granite-Related Polymetallic Sn–F–(REE) mineralization, Bushveld Igneous Complex, South Africa." Natural Resources Research 26, no. 4 (2017): 535–52. http://dx.doi.org/10.1007/s11053-017-9325-8.

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Raith, J. G. "Petrogenesis of the Concordia Granite Gneiss and its relation to WMo mineralization in western Namaqualand, South Africa." Precambrian Research 70, no. 3-4 (1995): 303–35. http://dx.doi.org/10.1016/0301-9268(94)00049-w.

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Dyck, Brendan, and Marian Holness. "Microstructural evidence for convection in high-silica granite." Geology 50, no. 3 (2021): 295–99. http://dx.doi.org/10.1130/g49431.1.

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Abstract High-silica (&gt;70 wt% SiO2) granites (HSGs) are critical carriers of tin, copper, and other melt-incompatible elements, yet much remains unknown about the mechanisms responsible for their formation. One of the key issues is the apparent lack of evidence for crystal-melt segregation (e.g., modal layering), without which little can be inferred about the dynamics (or lack thereof) of crystallizing HSGs. We examined the crystallographic orientation relationships of clustered quartz crystals from the 300-m-thick Bobbejaankop sill, Bushveld Complex, South Africa. We report an inward i

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