Grant Cawthorn Bushveld Complex

The Platinum Group Element Deposits of the Bushveld ...

The Bushveld Complex (see Figure 2) is an enormous irruption of magma (molten rock) sourced deep within the Earth. The extent of the magma flow was at least 300 km in diameter. In the order of 1 million km 3 of magma was emplaced in a (geologically) …

The Bushveld Complex, South Africa | SpringerLink

19.05.2015· Tegner C, Cawthorn RG, Kruger FJ (2006) Cyclicity in the main and upper zones of the Bushveld Complex, South Africa: crystallization from a zoned magma sheet. J Petrol 47:2257–2279 Google Scholar Teigler B, Eales HV (1993) Correlation between chromite composition and PGE mineralization in the critical zone of the western Bushveld Complex.

grant cawthorn bushveld complex - lecarignan.fr

grant cawthorn bushveld complex - kontaktladen.eu. The Bushveld Complex formed by the crystallization of successive injections of magma, which were sufficiently closely spaced in time that each previo ... R. Grant Cawthorn. 1. Department of Geology, University of the Witwatersrand. PO Wits, 2050, South Africa * * Corresponding author.

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

Sills associated with the Bushveld Complex, South Africa: an estimate of the parental magma composition Author links open overlay panel R. Grant Cawthorn …

Bushveld Igneous Complex - Wikipedia

The Bushveld Igneous Complex (BIC) is the largest layered igneous intrusion within the Earth's crust. It has been tilted and eroded forming the outcrops around what appears to be the edge of a great geological basin: the Transvaal Basin.It is approximately 2 billion years old and is divided into four different limbs: the northern, southern, eastern, and western limbs.

Extensions to the platinum resources of the Bushveld …

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A Short Geological Review of the Bushveld Complex

The Bushveld Complex is the world’s largest layered intrusion, and because of its unique char- acter most other layered intrusions are compared with it. The Bushveld Complex, as exposed at cur- rent levels of erosion, consists eastern, western and northern limbs, see Figure 1, and is some seven to nine kilometres thick. The large scale lay- ering forms the basis for a simple subdivision, see ...

The Bushveld Complex in the Context of theThe Bushveld ...

• The 2’060 Ma old Bushveld Complex of about 66’000 km2 extent is a saucer-shaped layered igneous intrusion and one of the great geological wonders of the world. • The Complex is made up of ultramafic to felsic igneous rocks and formed by repeated injection of magma into an enormous chamber. Cooling and fractional mineral crystallisation was a slow process leading to the mineral ...

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

(USGS Grant #05HQGR0158) 1 “Research supported by the U.S. Geological Survey (USGS) under number #05HQGR0158. The views and conclusions contained in this document are those of the non-USGS authors and should not be interpreted as necessarily representing the views, official policies, either expressed or implied, of the U.S. Government.” Introduction The Bushveld Complex, which underlies …

The geometry and emplacement of the Pilanesberg …

The circular 625 km 2 alkaline Pilanesberg Complex, South Africa, contains coeval eruptive and several distinctive intrusive syenitic and foyaitic components, concentrically arran

The Platinum Group Element Deposits of the Bushveld ...

By R. Grant Cawthorn. School of Geosciences, University of the Witwatersrand, Private Bag 3, Johannesburg 2050, South Africa; E-mail: [email protected] There are enough platinum group element deposits in the Bushveld Complex in South Africa to supply world demands for many decades or even a century using current mining techniques ...

grant cawthorn bushveld complex - lecarignan.fr

grant cawthorn bushveld complex - kontaktladen.eu. The Bushveld Complex formed by the crystallization of successive injections of magma, which were sufficiently closely spaced in time that each previo ... R. Grant Cawthorn. 1. Department of Geology, University of the Witwatersrand. PO Wits, 2050, South Africa * * Corresponding author.

[PDF] The Bushveld Complex | Download Full eBooks for …

Download full The Bushveld Complex Book or read online anytime anywhere, Available in PDF, ePub and Kindle. Click Get Books and find your favorite books in the online library. Create free account to access unlimited books, fast download and ads free! We cannot guarantee that The Bushveld Complex book is in the library. READ as many books as you like (Personal use). Magmatic Ore Deposits ...

The Bushveld Complex, South Africa | Semantic Scholar

The mafic rocks of the Bushveld Complex, South Africa, were emplaced into a stable cratonic shield some 2.06 b.y. ago, and have remained remarkably well preserved from deformation, metamorphism and low temperature alteration, at least partly by its isostatic impact on the entire crustal thickness. The generation and emplacement of possibly 1 million km3 of magma within 65,000 years …

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

Two expressions of the transition from mafic cumulates to ...

R. Grant Cawthorn, University of the Witwatersrand; Department of Geoscience; In the Bushveld Complex of South Africa, numerous granitic and granophyric rocks termed the Lebowa Granite and Rashoop Granophyre Suites, respectively, overlie the layered ultramafic-mafic rocks of the Rustenburg Layered Suite. Despite their close spatial and temporal association, the granites and granophyres are ...

- Universität Leoben/Forschungsportal

Grant Cawthorn; Organisationseinheiten. Lehrstuhl für Rohstoffmineralogie; Details. Titel in Übersetzung: Macguinnessite [(Mg,Cu)2CO3(OH)2] in chromitite xenoliths from Onverwacht, Eastern Bushveld Complex, South Africa: Originalsprache: Englisch: Titel: 18th General Meeting of the IMA: Seiten: 142-142: Status: Veröffentlicht - 2002: Beziehungsdiagramm anzeigen. 360 Link ...

Extensions to the platinum resources of the Bushveld …

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Connectivity between the western and eastern limbs of the ...

Abstract The mafic layered rocks of the Bushveld Complex are 6–8 km thick and crop out over an area of 65,000 km 2 . Previous interpretations of the Bouguer gravity anomalies suggested that the intrusion consisted of two totally separate bodies. However, the mafic sequences in these arcuate western and eastern limbs are remarkably similar, with at least six petrologically distinctive layers ...

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[PDF] The Bushveld Complex | Download Full eBooks for …

Download full The Bushveld Complex Book or read online anytime anywhere, Available in PDF, ePub and Kindle. Click Get Books and find your favorite books in the online library. Create free account to access unlimited books, fast download and ads free! We cannot guarantee that The Bushveld Complex book is in the library. READ as many books as you like (Personal use). Magmatic Ore Deposits ...

grant cawthorn bushveld complex - pizzeria-latrattoria.de

Grant Cawthorn Bushveld Complex. The bushveld complex of south africa is a large layered intrusive suite of cumulate rocks for which the parental magma is not directly obtainableowever, we report here indirect evidence from a. Get price; The Residual or Roof Zone of the Bushveld Complex, South . R. Grant Cawthorn. in The geological succession of an area in the southeastern Bushveld Complex ...

Cawthorn, R.G. (2013) The Residual or Roof Zone of the ...

Cawthorn, R.G. (2013) The Residual or Roof Zone of the Bushveld Complex, South Africa. Journal of Petrology, 54, 1875-1900.

Two expressions of the transition from mafic cumulates to ...

R. Grant Cawthorn, University of the Witwatersrand; Department of Geoscience; In the Bushveld Complex of South Africa, numerous granitic and granophyric rocks termed the Lebowa Granite and Rashoop Granophyre Suites, respectively, overlie the layered ultramafic-mafic rocks of the Rustenburg Layered Suite. Despite their close spatial and temporal association, the granites and granophyres are ...

Extensions to the platinum resources of the Bushveld …

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- Universität Leoben/Forschungsportal

Grant Cawthorn; Organisationseinheiten. Lehrstuhl für Rohstoffmineralogie; Details. Titel in Übersetzung: Macguinnessite [(Mg,Cu)2CO3(OH)2] in chromitite xenoliths from Onverwacht, Eastern Bushveld Complex, South Africa: Originalsprache: Englisch: Titel: 18th General Meeting of the IMA: Seiten: 142-142: Status: Veröffentlicht - 2002: Beziehungsdiagramm anzeigen. 360 Link ...

E-ISSN 1471–0676 ., 2010, 54, (4), 203• Platinum Metals Review

The Platinum Group Element Deposits of the Bushveld Complex 205 in South Africa By R. Grant Cawthorn SAE 2010 World Congress 216 A conference review by Timothy V. Johnson Effect of Particle Size of Platinum and Platinum-Cobalt Catalysts 223 on Stability Against Load Cycling By Koichi Matsutani, Katsuichiro Hayakawa and Tomoyuki Tada “Handbook of Green Chemistry – Green …

Connectivity between the western and eastern limbs of the ...

Abstract The mafic layered rocks of the Bushveld Complex are 6–8 km thick and crop out over an area of 65,000 km 2 . Previous interpretations of the Bouguer gravity anomalies suggested that the intrusion consisted of two totally separate bodies. However, the mafic sequences in these arcuate western and eastern limbs are remarkably similar, with at least six petrologically distinctive layers ...

Bushveld Complex Research Papers - Academia.edu

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The role of contamination in the evolution of the Platreef ...

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