Comment on 40Ar/39Ar age constraints on low-grade metamorphism and cleavage development in the Transvaal Supergroup (central Kaapvaal craton, South Africa): Implications for the tectonic setting of the Bushveld Igneous Complex (South African Journal of Geology, 109, 393-410), by Alexandre et al. (2006)

South African Journal of Geology

Volumn 110, Issue 1, 2007, Pages 157-159

  Reimold, Wolf Uwe ^a   Wittek, A ^a   Jourdan, F ^b  

^a HUMBOLDT UNIVERSITY   (Germany)

^b Berkeley Geochronology Centre   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 34547786653     PISSN: 10120750     EISSN: None     Source Type: Journal    
DOI: 10.2113/gssajg.110.1.157     Document Type: Note

References (14)

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2. Buick, I.S., Maas, R. and Gibson, R. (2001). Precise U-Pb titanite age constraints on the emplacement of the Bushveld Complex, South Africa. Journal of the Geological Society, 158, 3-6.
3. Gibson, R.L., Armstrong, R.A. and Reimold, W.U. (1997). The age and thermal evolution of the Vredefort impact structure: A single-grain U-Pb zircon study. Geochimica et Cosmochimica Acta, 61, 1531-1540.
4. Gibson, R.L., Reuimold, W.U. and Stevens, G. (1998). Thermal-metamorphic signature of an impact event in the Vredefort Dome, South Africa. Geology, 26, 787-790.
5. 39Ar constraints on the age of metamorphism in the Witwatersrand Supergroup, Vredefort dome (South Africa). South African Journal of Geology, 103, 175-190.
6. 37Ar recoil ejection during neutron irradiation of sanidine and plagioclase crystals. Geochimica et Cosmochimica Acta, 70, supplement, A299.
7. Kamo, S.L., Reimold, W.U., Krogh, T.E. and Colliston, W.P. (1996). A 2.023 Ga age for the Vredefort impact event and a first report of shock-metamorphosed zircons in pseudotachylite breccias and granophyre. Earth and Planetary Science Letters, 144, 369-388.
8. 40K and age of a dating standard. Mathematical Geology, 175, 457-474.
9. 39Ar geochronology through comparison with U-Pb analysis of a 1.1 Ga rhyolite. Geochimica, et Cosmochimica Acta, 64, 73-98.
10. 39Ar geochronometer (Abstract). Eos Transactions AGU 87(52), Fall Meeting Supplement, Abstract V21A-0543.
11. 39Ar age constraints on ore deposition and cooling of the Bushveld Complex, South Africa. Journal of the Geological Society of London, 161, 411-420.
12. 39Ar dating technique. Geochimica et Cosmochimica Acta, 59, 1821-1834.
13. 39Ar recoil ejection from GA1550 biotite during neutron irradiation as a function of grain dimensions. Geochimica et Cosmochimica Acta, 70, 1507-1517.
14. Walraven, F. (1997).Geochronology of the Rooiberg Group, Transvaal Supergroup, South Africa. Information Circular of the Economic Geology Research Unit, University of the Witwatersrand, Johannesburg, South Africa, 316, 21pp.