In the northwest, there is good outcrop and the collar sequence can be seen to dip steeply towards the center of the dome or are overturned. To the south and east, overlying Karoo sediments obscure the geology. The morphology of the central uplift has been modified by post-impact ...
This section presents a set of the most easily accessible localities that cover the most signifi cant aspects of the geology of the Vredefort Dome, together with some of its archaeological and cultural heritage. Several sites essentially duplicate one another, but are listed here as they may inc...
2.0-Ga megascopic Vredefort 'Dome' structure. The effect of the 'Vredefort event' is demonstrably large and is evident within a northerly arc of about 100 km radius around the granitic core of the structure. Northerly asymmetric overturning of the strata is observed within the first 17 km (...
Department of GeologyAmerican MineralogistErickson, T. M., A. J. Cavosie, D. E. Moser, I. R. Barker, and H. A. Radovan (2013), Correlating planar microstructures in shocked zircon from the Vredefort Dome at multiple scales: Crystallographic modeling, external and internal imaging, and ...
South African Journal of GeologyGIBSON, R.L., REIMOLD, W.U., PHILLIPS, D., and LAYER, P.W. (2000b), (super 40) Ar/(super 39) Ar constraints on the age of metamorphism in the Witwatersrand Supergroup, Vredefort Dome (South Africa), South African Journal of Geology, 103, 175-190...
Experimental/ geologyimpact (mechanical)meteoritesminerals/ stishoviteVredefort DomeSouth Africahigh pressure silica polymorphscoesitethin pseudotachylyte veinsWitwatersrand quartzitesTHE high pressure silica polymorphs, coesite and stishovite have been discovered in very thin pseudotachylite veins developed in ...
The Vredefort Impact Crater is the largest asteroid impact structure with visible evidence at Earth's surface. The uplift at the center of the crater is known as the Vredefort Dome.
The Vredefort dome in the Kaapvaal Craton was formed as a result of the impact of a large meteorite at 2.02 Ga. The central core of Archaean granitic basement rocks is surrounded by a collar of uplifted and overturned strata of the Witwatersrand Supergroup, exposing a substantial depth sectio...
(1996). Geology and evolution of the Vredefort impact structure, South Africa. J. Afr. Earth Sci. 23, 125-162.Reimold, W. U. , and R. L. Gibson ( 1996 ), Geology and evolution of the Vredefort impact structure, South Africa , J. Afr. Earth Sci. , 23 , 125 – 162 , doi:...
GeologyG.J. BeukesH. de BruiynA.A. BisschoffesJournal of African Earth SciencesCoetzee MS, Beukes GJ, de Bruiyn H, Bisschoff AA (2006) Geochemistry and petrogenesis of tholeiitic intrusions of possible Bushveld-age in the Vredefort Dome, South Africa. Journal of African Earth Sciences ...