LA-ICP-MS dating of zircons from Meso- and Neoarchean granitoids of the Pietersburg block (South Africa): Crustal evolution at the northern margin of the Kaapvaal craton

LA-ICP-MS dating of zircons from Meso- and Neoarchean granitoids of the Pietersburg block (South... 1 Introduction</h5> Located in Southern Africa, the Archean Kaapvaal craton ( Fig. 1 ) is one of the oldest, well-exposed continental blocks on Earth. Schematically, its growth proceeded in three steps: (1) formation of a stable nucleus between ~3600 and ~3100 Ma followed by (2) magmatic and tectonic accretion along the northern and western margins of the craton between ~3100 and ~2600 Ma and (3) collision with the Zimbabwe craton to the north, giving rise to the high-grade (granulite-facies) Limpopo mobile belt (e.g. de Wit et al., 1992a; Poujol et al., 2003; Roering et al., 1992; van Reenen et al., 1987 ).</P>The architecture and geological history of the Palaeoarchaean nucleus were extensively studied in terms of geochronology, isotopic geochemistry and metamorphic geology (e.g. Armstrong et al., 1990; Kamo and Davis, 1994; Kröner et al., 1991, 1996; Moyen et al., 2006; Sanchez-Garrido et al., 2011; Zeh et al., 2009 ). Similarly, the tectonic evolution of the Limpopo belt is presently well understood: it results from collision between the Kaapvaal and Zimbabwe craton during Neoarchean times (2650–2600 Ma), followed by a Paleoproterozoic (~2000 Ma) tectonic reworking ( Kramers et al., 2006; Kramers and Houri, 2011; van Reenen et al., 2008 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Precambrian Research Elsevier

LA-ICP-MS dating of zircons from Meso- and Neoarchean granitoids of the Pietersburg block (South Africa): Crustal evolution at the northern margin of the Kaapvaal craton

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Publisher
Elsevier
Copyright
Copyright © 2013 Elsevier B.V.
ISSN
0301-9268
eISSN
1872-7433
D.O.I.
10.1016/j.precamres.2013.02.009
Publisher site
See Article on Publisher Site

Abstract

1 Introduction</h5> Located in Southern Africa, the Archean Kaapvaal craton ( Fig. 1 ) is one of the oldest, well-exposed continental blocks on Earth. Schematically, its growth proceeded in three steps: (1) formation of a stable nucleus between ~3600 and ~3100 Ma followed by (2) magmatic and tectonic accretion along the northern and western margins of the craton between ~3100 and ~2600 Ma and (3) collision with the Zimbabwe craton to the north, giving rise to the high-grade (granulite-facies) Limpopo mobile belt (e.g. de Wit et al., 1992a; Poujol et al., 2003; Roering et al., 1992; van Reenen et al., 1987 ).</P>The architecture and geological history of the Palaeoarchaean nucleus were extensively studied in terms of geochronology, isotopic geochemistry and metamorphic geology (e.g. Armstrong et al., 1990; Kamo and Davis, 1994; Kröner et al., 1991, 1996; Moyen et al., 2006; Sanchez-Garrido et al., 2011; Zeh et al., 2009 ). Similarly, the tectonic evolution of the Limpopo belt is presently well understood: it results from collision between the Kaapvaal and Zimbabwe craton during Neoarchean times (2650–2600 Ma), followed by a Paleoproterozoic (~2000 Ma) tectonic reworking ( Kramers et al., 2006; Kramers and Houri, 2011; van Reenen et al., 2008

Journal

Precambrian ResearchElsevier

Published: Jun 1, 2013

References

  • Common-Pb corrected in situ U–Pb accessory mineral geochronology by LA-MC-ICP-MS
    Horstwood, M.S.A.; Foster, G.L.; Parrish, R.R.; Noble, S.R.; Nowell, G.M.
  • Reassessment of Archean crustal development in the Barberton Mountain Land, South Africa, based on U-Pb dating
    Kamo, S.L.; Davis, D.W.
  • Geochronology of the Hout River Shear Zone and the metamorphism in the Southern Marginal Zone of the Limpopo Belt, Southern Africa
    Kreissig, K.; Holzer, L.; Frei, R.; Villa, I.M.; Kramers, J.D.; Smit, C.A.; Van Reenen, D.D.
  • Single zircon ages for felsic to intermediate rocks from the Pietersburg and Giyani greenstone belts and bordering granitoid orthogneisses, northern Kaapvaal Craton, South Africa
    Kröner, A.; Jaeckel, P.; Brandl, G.
  • On the treatment of concordant uranium-lead ages
    Ludwig, K.R.
  • U–Pb isotopic evidence for episodic granitoid emplacement in the Murchison greenstone belt, South Africa
    Poujol, M.
  • A review of the geochronological constraints on the evolution of the Kaapvaal Craton, South Africa
    Poujol, M.; Robb, L.J.; Anhaeusser, C.R.; Gericke, B.
  • P–T conditions of decompression of the Limpopo high-grade terrane: record from shear zones
    Smit, C.A.; Van Reenen, D.D.; Gerya, T.V.; Perchuk, L.L.
  • Geochronological problems related to polymetamorphism in the Limpopo Complex
    van Reenen, D.D.; Boshoff, R.; Smit, C.A.; Perchuk, L.L.; Kramers, J.D.; McCourt, S.; Armstrong, R.A.

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