grant cawthorn bushveld complex

The Bushveld Complex, a product of interaction among ...

The Bushveld Complex is a large magmatic province of uncertain origin. Its perceived immensity has attracted speculations of extraterrestrial origin by meteorite ... Cawthorn et al. (1991) challenged this proposal on the grounds that the REE contents of B3 are too low for it to be parental to

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Bushveld 2006 PorterGeo

Monday 1 May, 2006. The first day of the tour was devoted to a classroom short course on the Formation, Geology Metallogeny of the Bushveld Complex presented by the renowned expert, Prof. Grant Cawthorn, the Platinum Industry's Professor of Igneous Petrology, School of Geosciences, University of the Witwatersrand.

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Immiscible iron and silicarich liquids in the Upper Zone ...

Immiscible iron and silicarich liquids in the Upper Zone of the Bushveld Complex Author links open overlay panel Lennart A. Fischer a b Meng Wang a Bernard Charlier a c Olivier Namur a R. James Roberts d Ilya V. Veksler e f R. Grant Cawthorn g François Holtz a

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grant cawthorn bushveld complex

Home Products Mobile Crusher grant cawthorn bushveld complex. Platinum Wikipedia. Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverishwhite transition name is derived from the Spanish term platino, meaning "little silver". ...

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Geology 314 Accretion of the Bushveld complex

Figure 1: Map and cross section in the Bushveld Complex (Winter 2002) . The Bushveld complex crops out in the Northern part of South Africa, in the provinces of NorthWest, Limpopo and Mpumalanga.

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Layered intrusions (eBook, 1996) []

[R Grant Cawthorn;] Written by leading experts in the field, this work summarises the important aspects relating to layered intrusions, with almost universal coverage of the subject. ... A Review of Mineralization in the Bushveld Complex and some other Layered Mafic Intrusions Chapter 5. The Skaergaard Intrusion Chapter 6.

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ICDP Workshop Agenda

Drilling the Bushveld Intrusion ICDP Workshop Agenda September 7 Sunday Holiday Inn Rosebank ... 10:00 Grant Cawthorn (Wits): Bushveld Overview: (a) Structure emplacement, (b) Petrology and metallogenesis ... Is there a particular geographic region of the Bushveld complex .

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Distribution of mafic sills in the Transvaal Supergroup ...

The emplacement level of the Bushveld Complex transgresses across some 5 km of the stratigraphy of the upper formations of the Transvaal Supergroup. ... Distribution of mafic sills in the Transvaal Supergroup, northeastern South Africa. A. Button and R. G. Cawthorn. Journal of ... Distribution of mafic sills in the Transvaal Supergroup ...

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Two: OVERVIEW OF THE BUSHVELD COMPLEX UPSpace

the Wonderkop fault (Eales and Cawthorn, 1996). Cawthorn and Webb (2001) proposed that Hall's initial model was correct, in that the eastern and the western limb of the Bushveld Complex are linked and formed within a single lopolithic intrusion.

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مجتمع Grant Cawthorn Bushveld

MISC{Cawthorn_relationshipbetween, author = {R. Grant Cawthorn and Christopher A. Lee and Robert P. Schouwstra and Peter Mellowship}, title = {RELATIONSHIP BETWEEN PGE AND PGM IN THE BUSHVELD COMPLEX}, year = {}} The abundances of the platinumgroup elements (PGE), and their relative proportions .

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grant cawthorn bushveld complex

PDFEmplacement and Crystallization Time for the Bushveld Complex:PDF/Adobe AcrobatHTMLJOURNAL OF PETROLOGY VOLUME 39 NUMBER 9 PAGES 1998 Emplacement and Crystallization Time for the Bushveld Complex R. GRANT CAWTHORN1 AND ...

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Lateral Variability in the Upper Main Zone, Bushveld ...

each other and appear to connect at depth (Cawthorn Webb, 2001; Webb et al., 2004)(Fig. 1). The predominantly mafic and ultramafic unit of the Bushveld Complex, the Rustenburg Layered Suite (RLS), is stratigraphically subdivided (SACS, 1980) into the Lower, Critical, Main and Upper Zones based on cumulus mineral assemblages (Fig. 1).

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Sills associated with the Bushveld Complex, South Africa ...

Sills associated with the Bushveld Complex, South ⢠gD . ⢠Africa: an estimate of the parental magma compo mon R. GRANT CAWTHORN, G. D~tlES, A. CLUBLEYARMSTRONG.

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Chapter 12: Layered Mafic Intrusions UMass Amherst

Chapter 12: Layered Mafic Intrusions. 2 The form of a typical LMI The Muskox Intrusion Figure 121. From Irvine and Smith (1967), In P. J. Wyllie (ed.), Ultramafic and Related ... Bushveld Complex. After Wager and Brown (1968) Layered Igneous Rocks. Freeman. San Francisco. 10 Upper Zone Appearance of cumulus magnetite (Ferich)

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Bushveld Igneous Complex Explained

The general mineral assemblage of the chromitite seams in the Bushveld Complex consists of olivine + chromite, chromite +/ bronzite + plagioclase, chromite + plagioclase, and chromite + clinopyroxene. ... Cawthorn. R. Grant. 2010. The Platinum Group Element Deposits of the Bushveld Complex in South Africa. Platinum Metals Review. 54.

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Vs structure of the crust containing the Bushveld Complex

structure of the crust containing the Bushveld Complex ... Cawthorn et al., 2006). It intruded into the intracratonic sedimentary sequences of the Transvaal Supergroup and is stratigraphically divided into the Rooiberg Group (RG), the Rashoop Granophyre Suite (RGS), .

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Petrogenesis of the Platreef, Bushveld Complex, South ...

The Bushveld Complex consists of three major regions: the Eastern and Western Lobes, and the Northern Limb (Figure 1). In the Eastern and Western lobes the mineralization is hosted in the interior of the Complex, in the Merensky Reef and UG2 Chromitite layers.

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Geological interpretations from the PGE distribution in ...

CAWTHORN, Geological interpretations from the PGE distribution in the Bushveld Merensky and UG2 chromitite reefs. The 4th International Platinum Conference, Platinum in transition 'Boom or Bust', The Southern African Institute of Mining and Metallurgy, 2010.

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Cr and Sr: Keys to parental magmas and processes in the ...

Cr and Sr: Keys to parental magmas and processes in the Bushveld Complex, South Africa; Post on 09Sep2016. 212 views. Category: Documents. 0 download. Report. Download; TRANSCRIPT. maSo. the Main Zone, there is further addition of a ferrobasaltic magma, with 6% MgO, 111 ppm Cr and 350 ppm Sr, that is consistent.

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Bushveld Complex, South Africa

The Bushveld complex is a (65,000 km2) layered intrusive. It contains many magmatic ores, pegmatitic and hydrothermal ore deposits and has metamorphosed the floor rocks of the intrusive. The major deposits are of platinum group elements, chrome, nickel, vanadium and uranium. It is a large complex ...

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Igneous and Metamorphic Studies Group Meeting 15 18 ...

Igneous and Metamorphic Studies Group Meeting 15 ... 14:00 Enigmas and debates about the Bushveld Complex Grant Cawthorn 14:00 – 14:20 SynBushveld diorite sheet intrusions in the Main Zone: A ... lithologies at Turfspruit, Northern Limb, Bushveld Complex, South Africa 5 .

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Production Resources in South Africa PMM

You are here: Introduction. The PGM resources of the Bushveld Igneous Complex (BIC) were discovered by Hans Merensky and Andries Lombaard in 1924. Within the complex, three horizons, the Merensky Reef, UG2 Chromitite and the Platreef are mined for PGMs and make the BIC the largest PGM resource in .

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