Kaapvaal Craton

Kaapvaal craton (Gurney and Harte, 1980 Boyd and Nixon, 1978 Boyd and Mertzman, 1987 Nixon, 1987),... 

Matsoku, Kaapval craton (Gumey et al., 1975) Jericho, Slave craton (Kopylova et al, 1999) Mzongwana, SE margin Kaapvaal craton (Boyd et al, 1984a)... 

N. Lesotho (Nixon and Boyd, 1973a) Jagersfontein, Kaapvaal craton (Burgess and Harte, 1999) Siberia (Sobolev, 1974 Boyd et al, 1993) Slave (Kopylova et al., 1999) Somerset Island, Churchill Province (Schmidberger and Francis, 1999)... 

N. Lesotho (Nixon and Boyd 1973b) Monastery (Gurney et al, 1979), Jagersfontein (Hops et al, 1992), Kaapvaal craton The Malaita megacryst suite (Nixon and Boyd, 1979), occurs in an ocean plateau alnoite, but has many similarities with the kimberhtic low-Cr suite... 

Bedini R. M., Blichert-Toft J., Boyet M., and Albarede F. (2002) Lu-Hf isotope geochemistry of garnet-peridotite xenoliths from the Kaapvaal craton and the thermal regime of the lithosphere. Geochim. Cosmochim. Acta (Spec. Suppl.) 66S1, A61. 

Irvine G. J., Pearson D. G., and Carlson R. W. (2001) Lithospheric mantle evolution in the Kaapvaal craton A Re-Os isotope study of peridotite xenoliths from Lesotho kimberlites. Geophys. Res. Lett. 28, 2505—2508. 

Konzett J., Armstrong R. A., and Gunther D. (2000) Modal metasomatism in the Kaapvaal craton lithosphere constraints on timing and genesis from U-Pb zircon dating of... 

Saltzer R. L., Chatterjee N., and Grove T. L. (2001) The spatial distribution of garnets and pyroxenes in mantle peridotites pressure-temperature history of peridotites from the Kaapvaal craton. J. Petrol. 42, 2215-2229. 

Figure 12 Normative garnet Iherzolite mineral abundances (wt.%) versus rock Mg for low-temperature cratonic mantle. Data are open circles, Kaapvaal craton (Boyd and Mertzman, 1987 and references therein) filled diamonds, Tanzanian craton (Lee and Rudnick, 1999) open triangle, Siberian craton (Boyd et al., 1997) cross. Slave craton, northwest Canada (Kopylova and Russell, 2000) filled triangle, northern Canadian craton (Schmidberger and Francis, 1999) and inverted triangle, central Greenland craton (Bernstein et al., 1998).

Herzberg C. T. (1993) Lithosphere peridotites of the Kaapvaal craton. Earth Planet. Set Lett 120, 13-29. 

The Vredefort dome represents a unique, upturned section through —36 km of crust of the Kaapvaal craton, possibly exposing a paleo-Moho at its base (Hart et al., 1981, 1990 Tredoux et al., 1999 Moser et al., 2001). The origin of this structure is debated, but one likely scenario is that it was produced by crustal rebound following... 

Vredefort Dome 1-3 2.6-3.6Ga Kaapvaal craton, (3) 36 36 (w/paleo Moho) Amphibolite-facies granitic gneiss Granulite-facies chamockites, leucogranofels, mafic, and ultramafic granulites... 

Kaapvaal Craton, South Africa Newlands Kimberlite, K PG U-Pb 114Ma... 

Kaapvaal Craton, South Africa Eesotho, South Africa K MGG, MG, ME, TE, 90-140 Ma... 

Dawson J. B. and Smith J. V. (1987) Reduced sapphirine granuhte xenohths from the Lace Kimberhte, South Africa impheations for the deep structure of the Kaapvaal Craton. Contrib. Mineral. Petrol. 95, 376—383. 

Durrheim R. J. and Green R. W. E. (1992) A seismic refraction investigation of the Archaean Kaapvaal craton. South Africa, using mine tremors as the energy source. Geophys. J. Int. 108, 812-832. 

Niu F. L. and James D. E. (2002) Eine structure of the lowermost crust beneath the Kaapvaal craton and its implications for crustal formation and evolution. Earth Planet. Sci. Lett. 200(1—2), 121—130. 

Pearson N. J., O Reilly S. Y., and Griffin W. L. (1995) The crust-mantle boundary beneath cratons and craton margins a transect across the south-west margin of the Kaapvaal craton. Lithos 36(3-4), 257-287. 

Schmitz M. D. and Bowring S. A. (2000) The significance of U—Pb zircon dates in lower crustal xenohths from the southwestern margin of the Kaapvaal craton, southern Africa. Chem. Geol. 172, 59—76. 

Jones M. Q. W. (1992) Heat flow anomaly in Lesotho implications for the southern boundary of the Kaapvaal craton. Geophys. Res. Lett. 19, 2031-2034. 

Southern Barberton Belt Kaapvaal Craton, S Africa 3.5-3.2 De Wit et al (1987)... 

Figure 9 Depositional model for the Kuruman-Griquatown transition zone in a plan view, illustrating lithofacies distribution during drowning of the Kaapvaal craton (source Beukes and Klein, 1990).

Altermann W. and Nelson D. R. (1998) Sedimentation rates, basin analysis and regional correlations of three Neoarchean and Paleoproterozoic sub-basins of the Kaapvaal craton as inferred from precise U-Pb zircon ages from volcanoclastic sediments. Sedim. Geol. 120, 225-256. 

Fig. 1. Map showing station locations, topography and principal geological provinces in the region of study within southern Africa, Fifty-five broadband (REFTEK/STS-2) stations were installed in April 1997 in South Africa, Botswana and Zimbabwe. Stations in light blue were redeployed in April 1998 to sites indicated in yellow. A total of 82 sites were occupied over the two year deployment. In addition, three global seismic network broadband stations (white triangles) are located in the region and their data incorporated in the analysis. The array extends from the Cape Fold Belt in the south, through the Proterozoic Namaqua-Natal Mobile Belt, across the Kaapvaal Craton and Bushveld Province, through the Archaean Limpopo Mobile Belt and into the Zimbabwe Craton. On the west, the array covers part of the Kheis and Okwa Proterozoic Fold and Thrust Belts of Botswana and western South Africa. To the east, the array extends into the Early Archaean Barberton terrane, near the NW border with Swaziland. Published in James et al., GRL28, 2001, fig. 1.

The Archaean Kaapvaal and Zimbabwe Cratons form the nucleus of southern Africa. The Kaapvaal Craton, which is the better studied of the two, is composed of a mosaic of distinct geological terranes covering more than 10 km, with the oldest units generally in the eastern part of the craton and the youngest in the western part (de Wit et al. 1992). These terranes of disparate geological histories were assembled over a 1 Ga period from early Archaean (c. 3.6 Ga) to late Archaean time (c. 2.6 Ga) (de Wit et al. 1992 de Wit Hart 1993 Carlson et al. 2000). 

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