 | Reimold, W.U., Gibson, R.L., Henkel, H. (2008) Scientific comment on “Muundjua et al., 2007: Magnetic imaging of the Vredefort impact crater, South Africa, EPSL 261, 456–468”. Earth and Planetary Science Letters, 273 (3) 393-396 doi:10.1016/j.epsl.2008.06.046 | Journal (article/letter/editorial) | | 2007: Magnetic imaging of the Vredefort impact crater, South Africa, EPSL 261, 456–468” W.U. Reimold...Berlin, Invalidenstrasse 43, 10115 Berlin, Germany Impact Cratering Research Group, School of Geosciences...University of the Witwatersrand, 2050 Johannesburg, South Africa Royal Institute of Technology, Department of...magnetics of the Vredefort Dome, the central uplift of the largest and oldest known impact structure on Earth...within the context of trying to understand the impact-related effects on rock magnetic properties but |  | Rajesh, H.M., Knoper, M.W., Belyanin, G.A., Safonov, O.G., Schmidt, C. (2020) Petalite postdating spodumene in pegmatite as a consequence of the ~2.02 Ga meteorite impact in the Vredefort structure, southern Africa. Lithos, 376. 105760pp. doi:10.1016/j.lithos.2020.105760 | Journal (article/letter/editorial) | | of the ~2.02 Ga meteorite impact in the Vredefort structure, southern Africa H.M. Rajesh, M.W. Knoper...of the ~2.02 Ga meteorite impact in the Vredefort structure, southern Africa, LITHOS (2020), https://doi...of the ~2.02 Ga meteorite impact in the Vredefort structure, southern Africa H.M. Rajesh1*, M.W. Knoper2...Department of Geology, University of Johannesburg, South Africa 3 Korzhinskii Institute of Experimental Mineralogy...Petrology and Volcanology, Geological Faculty, Moscow State University, Russia 5 GFZ German Research Centre |  | Muundjua, Manfriedt, Galdeano, Armand, Carporzen, Laurent, Gilder, Stuart A., Hart, Rodger J., Andreoli, Marco A.G., Tredoux, Marian (2008) Reply to comment by W.U. Reimold, R.L. Gibson, and H. Henkel on Muundjua et al. (2007), “Magnetic imaging of the Vredefort impact crater, South Africa”, EPSL 261, pp 456–468. Earth and Planetary Science Letters, 273 (3) 397-399 doi:10.1016/j.epsl.2008.06.044 | Journal (article/letter/editorial) | | (2007), “Magnetic imaging of the Vredefort impact crater, South Africa”, EPSL 261, pp 456–468 Muundjua...magnetic anomalies associated with the Vredefort meteorite impact crater. In their comment, Reimold et...contribution on impact-related magnetism and on the “crust-on-edge” model of the Vredefort structure. merely...full field days within the central uplift area (Vredefort dome). The statistics of the data set are as follows:...Verwey transitions in the Vredefort rocks is a first, not only for Vredefort, but for any crystalline rock |  | | Journal (article/letter/editorial) | | dyke and surrounding host rocks, Vredefort impact structure, South Africa F. D. FOURIE 1* , M. S. HUBER...University of the Free State, 205 Nelson Mandela Drive, 9300 Bloemfontein, South Africa 2 Department of...University of the Free State, 205 Nelson Mandela Drive, 9300 Bloemfontein, South Africa * Corresponding...central part of the Vredefort impact structure are believed to be the remnants of the impact melt sheet, which...relates to the formation and modification of large impact structures. We conducted magnetic and resistivity |  | Reimold, W.U., Hoffmann, M., Hauser, N., Schmitt, R-T., Zaag, P.T., Mohr-Westerheide, T. (2016) A geochemical contribution to the discussion about the genesis of impact-related pseudotachylitic breccias: Studies of PTB in the Otavi and Kudu Quarries of the Vredefort Dome support the“In Situ Formation”hypothesis. South African Journal of Geology, 119 (3) 453-472 doi:10.2113/gssajg.119.3.453 | Journal (article/letter/editorial) | | contribution to the discussion about the genesis of impact-related pseudotachylitic breccias: Studies of PTB...PTB in the Otavi and Kudu Quarries of the Vredefort Dome support the “In Situ Formation” hypothesis W...n.de © 2016 September Geological Society of South Africa Abstract This work is aimed at contributing...formation of massive pseudotachylitic breccias (PTB) in impact structures. In the past this has been debated as...combination of injection of impact melt from a higher level of the impact structure plus assimilation of other |  | Reimold, Wolf Uwe, Hauser, Natalia, Hansen, Bent T., Thirlwall, Matthew, Hoffmann, Marie (2017) The impact pseudotachylitic breccia controversy: Insights from first isotope analysis of Vredefort impact-generated melt rocks. Geochimica et Cosmochimica Acta, 214. 266-281 doi:10.1016/j.gca.2017.07.040 | Journal (article/letter/editorial) | | The Impact Pseudotachylitic Breccia Controversy: Insights from First Isotope Analysis of Vredefort Impact-Generated...The Impact Pseudotachylitic Breccia Controversy: Insights from First Isotope Analysis of Vredefort Impact-Generated... The Impact Pseudotachylitic Breccia Controversy: Insights from First Isotope Analysis of Vredefort Impact-Generated...reimold@mfn-berlin.de ABSTRACT Besides impact melt rock, several large terrestrial impact structures, notably the Sudbury...Sudbury (Canada) and Vredefort (South Africa) structures, exhibit considerable occurrences of a second |  | | Journal (article/letter/editorial) | | shocked metaquartzites from the Vredefort impact structure, South Africa John G. SPRAY * and Suporn BOONSUE...~30 km from the center of the 2.02 Ga Vredefort impact structure. This work focuses on deploying analytical...deep crust from 20 to 30 km depth (coesite) and impact INTRODUCTION The polymorphs of silica are of considerable...Chao et al. (1960). Coesite can be an indicator of impact, though not exclusively so, due to its occurrence...surface can only be attributed to the hypervelocity impact of asteroids or comets, where suitably high P–T |  | | Journal (article/letter/editorial) | | of the Vredefort Dome for the thermal and structural evolution of the Witwatersrand Basin, South Africa...Africa R. L. Gibson and W. U. Reimold Impact Cratering Research Group, Department of Geology, University of...of the Witwatersrand, Johannesburg, South Africa With 5 Figures Received July 14, 1998; revised version...version accepted January 26, 1999 Summary The Vredefort Dome represents an area of significant ( ~ 10 kin)...250-300 km diameter, 2023±4 Ma old meteorite impact structure, the extent of which closely correlates with |  | | Journal (article/letter/editorial) | | http://meteoritics.org Impact tectonics in the core of the Vredefort dome, South Africa: Implications for...formation in very large impact structures C. LANA, R. L. GIBSON, and W. U. REIMOLD* Impact Cratering Research...Private Bag 3, P.O. Wits 2050, Johannesburg, South Africa *Corresponding author. E-mail: reimoldw@geosciences...accepted 16 June 2003) Abstract–The 80 km wide Vredefort dome presents a unique opportunity to investigate...levels of the central uplift of a very large impact structure. Exposure of progressively older strata in |  | | Journal (article/letter/editorial) | | Archean crustal structure of the Kaapvaal craton, South Africa ^ evidence from the Vredefort dome Cristiano...Alexander F.M. Kisters b , W. Uwe Reimold a a Impact Cratering Research Group, School of Geosciences...Private Bag 3, P.O. Wits 2050, Johannesburg, South Africa b Department of Geology, University of Stellenbosch...Stellenbosch, Private Bag X1, Matieland 7602, South Africa Received 2 August 2002; received in revised form...Crystalline Archean basement rocks in the core of the Vredefort dome present a profile through a substantial part |  | | Journal (article/letter/editorial) | | central uplift formation in the Vredefort impact structure, South Africa Daniel Lieger a, Ulrich Riller...Street West, Hamilton, Ontario, Canada L8S 4K1 Impact Cratering Research Group, School of Geosciences...Private Bag 3, P.O. Wits 2050, Johannesburg, South Africa a r t i c l e i n f o Article history: Received...Keywords: impact cratering central uplift pseudotachylite deformation Vredefort impact structure a b s...underlying the central portions of large terrestrial impact structures are characterized by the pervasive presence |  | | Journal (article/letter/editorial) | | allochthonous, possibly impact melt, origin of pseudotachylite from the Vredefort Dome, South Africa Daniel Lieger...Private Bag 3, P.O. Wits 2050, Johannesburg, South Africa Received 18 October 2010; accepted in revised...origin of pseudotachylite bodies formed during impact cratering include: (1) frictional heating, (2)...shock loading, (3) decompression or (4) drainage of impact melt into target rocks. In order to differentiate...composition akin to the average composition of Vredefort Granophyre dikes. Within veins, melt transport |  | | Journal (article/letter/editorial) | | Re/Os-isotope data from lower crustal sections of the Vredefort dome and a reinterpretation of its “crust-on-edge”...(1/2), 173-184) Roger L. Gibson and W. Uwe Reimold Impact Cratering Research Group, School of Geosciences...Witwatersrand, P O WITS, Johannesburg 2050, South Africa email: gibsonr@geosciences.wits.ac.za; reimoldw@geosciences...lana@imperial.ac.uk © 2005 Geological Society of South Africa Introduction Ever since Slawson (1976) suggested...crystalline basement rocks in the core of the Vredefort dome southwest of Johannesburg might represent |  | Kovaleva, E., Huber, M.S., Roelofse, F., Tredoux, M., Praekelt, H. (2018) Pseudotachylite vein hosted by a clast in the Vredefort Granophyre: characterization, origin and relevance. South African Journal of Geology, 121 (1) 51-68 doi:10.25131/sajg.121.0002 | Journal (article/letter/editorial) | | Pseudotachylite vein hosted by a clast in the Vredefort Granophyre: characterization, origin and relevance...University of the Free State, 205 Nelson Mandela Drive, 9300 Bloemfontein, South Africa e-mail: kovalevae@ufs...praekehe@ufs.ac.za © 2018 March Geological Society of South Africa Abstract A small, meta-granitic clast with...microcrystalline vein was found enclosed within the Vredefort Granophyre. Semi-quantitative chemical analyses...vein within the granophyre. Introduction Meteorite impact structures are the most important features of rocky |  | | Journal (article/letter/editorial) | | INVITED REVIEW The melt rocks of the Vredefort impact structure – Vredefort Granophyre and pseudotachylitic...pseudotachylitic breccias: Implications for impact cratering and the evolution of the Witwatersrand Basin Wolf Uwe Reimold...Reimold,1, Roger L. Gibson Impact Cratering Research Group, School of Geosciences, University of the...Private Bag 3, P.O. Wits 2050, Johannesburg, South Africa Received 22 February 2005; accepted 26 July...the Vredefort impact structure in South Africa an exceptional laboratory for the study of impact-related |  | | Report (chapter) | | Bag 3, PO WITS, Johannesburg 2050, South Africa Abstract: The Vredefort Dome, the central uplifted portion...portion of the c. 300km diameter, 2.02 Ga Vredefort Impact Structure, exposes a c. 20 km deep profile through...through the crust of the Kaapvaal Craton of southern Africa which displays evidence of greenschist- to granulitefacies...the root is inferred to be a disturbance in the structure of the lithosphere, and immediately underlying...metamorphic terrane in the Kaapvaal Craton (South Africa) which occurs in an intracratonic setting, spatially |  | Muundjua, Manfriedt, Hart, Rodger J., Gilder, Stuart A., Carporzen, Laurent, Galdeano, Armand (2007) Magnetic imaging of the Vredefort impact crater, South Africa. Earth and Planetary Science Letters, 261 (3) 456-468 doi:10.1016/j.epsl.2007.07.044 | Journal (article/letter/editorial) | | com/locate/epsl Magnetic imaging of the Vredefort impact crater, South Africa Manfriedt Muundjua a,b , Rodger...iThemba Labs P. Bag 11 Wits 2050, Johannesburg, South Africa University of the Witwatersrand, School of Geosciences...Geosciences, P.O. Wits 2050, Johannesburg, South Africa c Institut de Physique du Globe de Paris, Equipe...2007 Editor: C.P. Jaupart Abstract While most impact craters are characterised by negative magnetic...regions, aeromagnetic surveys over the Vredefort meteorite impact crater reveal multiple concentric magnetic |  | | Journal (article/letter/editorial) | | STABLE ISOTOPE EVIDENCE FOR IMPACT-RELATED PSEUDOTACHYLITE FORMATION AT VREDEFORT BY LOCAL MELTING OF DRY...Sciences, University of Cape Town, Rondebosch 7701, South Africa e-mail: chris.harris@uct.ac.za D.S. FOURIE...Sciences, University of Cape Town, Rondebosch 7701, South Africa e-mail: duanefourie@gmail.com A. FAGERENG Department...7701, South Africa e-mail: ake.fagereng@uct.ac.za © 2013 June Geological Society of South Africa ABSTRACT...water content of impact-related granophyre, and pseudotachylite, from various Vredefort Dome localities |  | Fagereng, Åke, Harris, Chris, La Grange, Mandy, Stevens, Gary (2007) Stable isotope study of the Archaean rocks of the Vredefort impact structure, central Kaapvaal Craton, South Africa. Contributions to Mineralogy and Petrology, 155 (1) 63-78 doi:10.1007/s00410-007-0224-6 | Journal (article/letter/editorial) | | Archaean rocks of the Vredefort impact structure, central Kaapvaal Craton, South Africa Åke Fagereng Æ Chris...Abstract The Vredefort dome in the Kaapvaal Craton was formed as a result of the impact of a large meteorite...Sciences, University of Cape Town, Rondebosch 7700, South Africa e-mail: chris.harris@uct.ac.za G. Stevens Department...Stellenbosch, Private Bag X1, Matieland 7602, South Africa Present Address: Å. Fagereng Department of... which were metamorphosed at greenschist-to amphibolite-facies conditions, generally have lower d18O |  | | Journal (article/letter/editorial) | | shock-induced pseudotachylites, Vredefort impact structure, South Africa Elizaveta Kovaleva, Matthew S...shock-induced pseudotachylites, Vredefort impact structure, South Africa, LITHOS (2020), https://doi.org/10...shock-induced pseudotachylites, Vredefort impact structure, South Africa Elizaveta Kovalevaa,* kovalevae@ufs...University of the Free State, 205 Nelson Mandela Drive, 9300 Bloemfontein, South Africa b ur na lP ...of Pretoria, 0028 Pretoria, South Africa Journal Pre-proof ABSTRACT Impact-generated pseudotachylites |  | Papapavlou, K., , , Darling, J. R., Moser, D. E., Barker, I. R., White, L. F., Lightfoot, P. C., Storey, C. D., Dunlop, J. (2018) U–Pb isotopic dating of titanite microstructures: potential implications for the chronology and identification of large impact structures. Contributions to Mineralogy and Petrology, 173 (10) doi:10.1007/s00410-018-1511-0 | Journal (article/letter/editorial) | | for the chronology and identification of large impact structures K. Papapavlou1 J. Dunlop2 · J. R. Darling2...Nature 2018 Abstract Identifying and dating large impact structures is challenging, as many of the traditional...shock indicator phases can be modified by post-impact processes. Refractory accessory phases, such as...respond with partial U–Pb age resetting during impact events. Titanite is an accessory phase with lower...but its potential as indicator and chronometer of impact-related processes remains poorly constrained. In |  | Erickson, Timmons M., Timms, Nicholas E., Kirkland, Christopher L., Tohver, Eric, Cavosie, Aaron J., Pearce, Mark A., Reddy, Steven M. (2017) Shocked monazite chronometry: integrating microstructural and in situ isotopic age data for determining precise impact ages. Contributions to Mineralogy and Petrology, 172 (2) doi:10.1007/s00410-017-1328-2 | Journal (article/letter/editorial) | | situ isotopic age data for determining precise impact ages Timmons M. Erickson1 · Nicholas E. Timms1...records shock deformation from meteorite impact but the effects of impact-related microstructures on the U–Th–Pb...the Vredefort impact structure, South Africa, and impact melt from the Araguainha impact structure, Brazil...orientation mapping of monazite grains from both impact structures reveals a similar combination of crystal-plastic...granular monazite domains are strain-free, having grown during the impact events via consumption of strained |  | Erickson, Timmons M., Cavosie, Aaron J., Moser, Desmond E., Barker, Ivan R., Radovan, Henri A., Wooden, Joe (2013) Identification and provenance determination of distally transported, Vredefort-derived shocked minerals in the Vaal River, South Africa using SEM and SHRIMP-RG techniques. Geochimica et Cosmochimica Acta, 107. 170-188 doi:10.1016/j.gca.2012.12.008 | Journal (article/letter/editorial) | | distally transported, Vredefort-derived shocked minerals in the Vaal River, South Africa using SEM and SHRIMP-RG...on Earth is incomplete due to the destruction of impact craters by erosion and burial. Shocked minerals...residing in sediments may help further document the impact record. To evaluate the survival of shocked minerals...grains from seven sites along the Vaal River in South Africa, ranging from 103 to 759 km downriver from the...the 2.020 Ga Vredefort impact structure, for the presence of detrital shocked minerals. Detailed observations |  | | Journal (article/letter/editorial) | | 20, 57±70 Impact-induced melting of Archean granulites in the Vredefort Dome, South Africa. I: anatexis...Private Bag 3, P O WITS, Johannesburg 2050, South Africa (065rlg@cosmos.wits.ac.za) ABSTRACT Mid-crustal...Mid-crustal Archean pelitic granulites in the Vredefort Dome experienced a static, low-P granulite facies...associated with the formation of the dome by meteorite impact at 2.02 Ga. Heating and exhumation were virtually...energy released from nonadiabatic decay of the impact shock wave. Maximum temperatures within a radius |  | | Journal (article/letter/editorial) | | The age and thermal evolution of the Vredefort impact structure: A single-grain U-Pb zircon study R....Private Bag 3, P O WITS, Johannesburg 2050, South Africa 2Research School of Earth Sciences, The Australian...granite body in the Archean basement core of the Vredefort Dome indicate an age of 2017 _+ 5 Ma for the granite...previously reported age determinations for the Vredefort impact event. Petrographic evidence from the granite...crystallized after the impact shock event, but some doubt remains whether it is a true impact melt, a decompression |
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