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Platreef

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Journal Article
Published: 01 December 2016
South African Journal of Geology (2016) 119 (4): 623–638.
... Mine. These localities access the Platreef of the northern Bushveld Complex. Platinum-group element enrichment trends in the BMS are similar in the Overysel and Sandsloot samples, although the overall PGE concentrations in the Overysel BMS are lower than those in the Sandsloot BMS. A general decoupling...
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Journal Article
Published: 01 November 2015
The Canadian Mineralogist (2015) 53 (6): 1109–1127.
... , Voordouw et al. 2010 ). However, in the Platreef of the Bushveld Complex, the abundance of (Pt,Pd)-bismuthotelluride minerals can be more than 50% ( Holwell et al. 2006 , Holwell & McDonald 2007 , Helmy et al. 2007 , McDonald & Holwell 2011 , Holwell et al. 2013 ). The (Pt,Pd...
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Journal Article
Journal: Economic Geology
Published: 01 December 2013
Economic Geology (2013) 108 (8): 1923–1952.
...Marina A. Yudovskaya; Judith A. Kinnaird; Alexander V. Sobolev; Dmitry V. Kuzmin; Iain McDonald; Allan H. Wilson Abstract Previously unknown Lower zone ultramafic sequences are described beneath the Platreef in the northern limb of the Bushveld Complex (South Africa). The Lower zone is separated...
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Journal Article
Journal: Economic Geology
Published: 01 March 2013
Economic Geology (2013) 108 (2): 365–377.
... is a chemically conservative tracer that indicates the involvement of crustal sulfur in marginal Ni-Cu-(PGE) deposits. In this study we use mass-independent fractionation of sulfur isotopes to evaluate the sulfur budget of the Platreef—the marginal PGE-bearing horizon of the northern limb of the Bushveld Complex...
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Journal Article
Published: 01 December 2012
South African Journal of Geology (2012) 115 (4): 535–550.
...A.A. MITCHELL; R.N. SCOON Abstract Detailed logging of relatively deep drill-core from the Akanani Project, in the northern limb of the Bushveld Complex, South Africa, has afforded new perspectives on the Platreef and its origins. In line with most recent studies, we believe the mineralization...
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Journal Article
Published: 01 December 2011
The Canadian Mineralogist (2011) 49 (6): 1349–1384.
...Marina Yudovskaya; Judith Kinnaird; Anthony J. Naldrett; Andrey V. Mokhov; Iain McDonald; Christian Reinke Abstract The lateral variation in platinum-group mineral (PGM) assemblages in the magmatic constituents of the Platreef, Bushveld Complex, have been investigated using whole-rock PGE data...
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Series: Reviews in Economic Geology
Published: 01 January 2011
DOI: 10.5382/Rev.17.11
EISBN: 9781629490243
...Abstract Abstract The Platreef is one of the largest and most valuable Ni-Cu-PGE orebodies on Earth. It is located at the base of the northern limb of the 2.06 Ga Bushveld Complex and stratigraphic relationships with other limbs of the complex and stratiform orebodies such as the Merensky Reef...
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Journal Article
Journal: Geology
Published: 01 December 2008
Geology (2008) 36 (12): 979–982.
...Sarah C. Penniston-Dorland; Boswell A. Wing; Paul A.M. Nex; Judith A. Kinnaird; James Farquhar; Michael Brown; Elizabeth R. Sharman Abstract The Platreef ore horizon of the Bushveld Complex, South Africa, is the third largest platinum group element ore deposit in the world, but the origin of its...
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Journal Article
Published: 01 March 2008
South African Journal of Geology (2008) 111 (1): 21–26.
...Frederick Roelofse; Lewis D. Ashwal Abstract This paper describes the occurrence of a rare form of exsolution texture known as symplectitic augite in a melagabbronorite from the lower portion of the Platreef in the Northern Sector of the Northern Limb as intersected by the Moordkopje (MO-1) drill...
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Journal Article
Published: 01 December 2007
South African Journal of Geology (2007) 110 (4): 611–616.
...Iain McDonald; David A. Holwell Abstract The Platreef in the northern limb of the Bushveld Complex comprises pyroxenites and gabbros that contain enormous quantities of Ni, Cu and platinum-group elements (PGE) concentrated from a larger volume of magma than represented by the Platreef itself. Chill...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 September 2007
Economic Geology (2007) 102 (6): 1091–1110.
...D. A. Holwell; A. J. Boyce; I. McDonald Abstract The Platreef, the world’s third largest platinum group element (PGE) deposit, is a 10–400-m thick pyroxenitic unit at the base of the northern limb of the mafic Bushveld Complex, hosting PGE mineralization in association with base metal sulfides...
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Journal Article
Published: 01 February 2006
Mineralogical Magazine (2006) 70 (1): 83–101.
...D. A. Holwell; I. McDonald; P. E. B. Armitage Abstract Platinum group mineral (PGM) assemblages in the Platreef at Sandsloot, northern Bushveld Complex, in a variety of lithologies reveal a complex multi-stage mineralization history. During crystallization of the Platreef pyroxenites, platinum...
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Journal Article
Published: 01 September 2005
South African Journal of Geology (2005) 108 (3): 381–396.
...Tawanda D. Manyeruke; Wolfgang D. Maier; Sarah-Jane Barnes Abstract The Platreef is a platinum group elements and base metal enriched mafic/ultramafic layer situated along the base of the northern limb of the Bushveld Complex. The present study contains a detailed petrographic and geochemical...
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Journal Article
Journal: Economic Geology
Published: 01 August 1986
Economic Geology (1986) 81 (5): 1096–1104.
...J. M. Barton; R. Grant Cawthorn; J. White Abstract The Platreef is a thick (greater than 100 m) coarse-grained feldspathic orthopyroxenite which transgresses northward across metasediments of the Transvaal Sequence and onto a granitic floor. It is overlain by main zone gabbronorites. Vertical...
Journal Article
Journal: Economic Geology
Published: 01 July 1985
Economic Geology (1985) 80 (4): 988–1006.
...R. Grant Cawthorn; J. M. Barton; Morris J. Viljoen Abstract The Platreef, on the basal contact of the Rustenburg Layered Suite, has been studied on the farm Overysel, 30 km north of Potgietersrus. The major element, trace element, and Sr isotope geochemistry of the Platreef feldspathic pyroxenite...
Journal Article
Journal: Economic Geology
Published: 01 October 1982
Economic Geology (1982) 77 (6): 1395–1404.
...S. B. Gain; A. B. Mostert Abstract On the farm Drenthe, the Platreef consists of a complex assemblage of norites, melanorites, pyroxenites, serpentinites, and xenoliths of dolomite. It is a zone of up to 250 m thick between the basal contact of the complex and the overlying main zone norites...
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NiO versus Fo in <span class="search-highlight">Platreef</span> olivine. Upper <span class="search-highlight">Platreef</span>, M Plat = <span class="search-highlight">platreef</span>.
Published: 01 September 2005
Figure 4. NiO versus Fo in Platreef olivine. Upper Platreef, M Plat = platreef.
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Plot of Y versus Zr. U Plat = Upper <span class="search-highlight">Platreef</span>, M Plat = Middle <span class="search-highlight">Platreef</span>, L P...
Published: 01 September 2005
Figure 10. Plot of Y versus Zr. U Plat = Upper Platreef, M Plat = Middle Platreef, L Plat = Lower Platreef. Stippled line represents back projection of B1 Bushveld parental magma ( Curl, 2001 ).
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Plot of ( a ), Fe 2 O 3 , ( b ) Al 2 O 3 , ( c ) CaO, ( d ) TiO 2 , (e) SiO...
Published: 01 September 2005
Figure 5. Plot of ( a ), Fe 2 O 3 , ( b ) Al 2 O 3 , ( c ) CaO, ( d ) TiO 2 , (e) SiO 2 and (f) K 2 O versus MgO. Also plotted ar B1 and B3 Bushveld parental magmas ( Curl, 2001 ) and averaged microprobe minerial compositions for the Platreef. U Plat = Upper Platreef, M Plat = Middle Platreef
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Binary variation diagrams showing composition of analysed rocks in comparis...
Published: 10 October 2022
Figure 11. Binary variation diagrams showing composition of analysed rocks in comparison to LZ and UCZ of WBC (data from Maier et al., 2013 ). (a) Al 2 O 3 versus MgO. Rocks are controlled by variable proportions of plagioclase, olivine, orthopyroxene and clinopyroxene. Note that Platreef