Koeberl, Christian, Uwe Reimold, Wolf, Boer, Rudolf H. (1993) Geochemistry and mineralogy of Early Archean spherule beds, Barberton Mountain Land, South Africa: evidence for origin by impact doubtful. Earth and Planetary Science Letters, 119 (3) 441-452 doi:10.1016/0012-821x(93)90152-y

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See Also

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	Glikson, A.Y. (1994) Archean spherule beds: Impact or terrestrial origin? A discussion of the paper ‘Geochemistry and mineralogy of Early Archean spherule beds, Barberton Mountain Land, South Africa: evidence for origin by impact doubtful’ by C. Koeberl, W.U. Reimold and R.H. Boer. Earth and Planetary Science Letters, 126 (4) 493-496 doi:10.1016/0012-821x(94)90126-0
	Reimold, Wolf Uwe, Koeberl, Christian, Johnson, Steven, McDonald, Iain (2000) Early archean spherule beds in the Barberton mountain land, South Africa: Impact or terrestrial origin?. In Impacts and the Early Earth. Springer-Verlag. p.117-180. doi:10.1007/bfb0027759
	Koeberl, Christian, Reimold, Wolf Uwe (1995) Early Archaean spherule beds in the Barberton Mountain Land, South Africa: no evidence for impact origin. Precambrian Research, 74 (1) 1-33 doi:10.1016/0301-9268(94)00099-d
	Koeberl, Christian, Reimold, Wolf Uwe (1994) Archean spherule beds: Impact or terrestrial origin? Reply to the comment by A. Glikson. Earth and Planetary Science Letters, 126 (4) 497-499 doi:10.1016/0012-821x(94)90127-9
	Ozdemir, Seda, Schulz, Toni, Koeberl, Christian, Reimold, Wolf Uwe, Mohr-Westheide, Tanja, Hoehnel, Desiree, Schmitt, Ralf Thomas (2017) Early Archean spherule layers from the Barberton Greenstone Belt, South Africa: Mineralogy and geochemistry of the spherule beds in the CT3 drill core. Meteoritics & Planetary Science, 52 (12) 2586-2631 doi:10.1111/maps.12998
	Simonson, Bruce M., Koeberl, Christian, McDonald, Iain, Reimold, Wolf Uwe (2000) Geochemical evidence for an impact origin for a Late Archean spherule layer, Transvaal Supergroup, South Africa. Geology, 28 (12) 1103 doi:10.1130/0091-7613(2000)28<1103:gefaio>2.0.co;2
	Simonson, Bruce M., Koeberl, Christian, McDonald, Iain, Reimold, Wolf Uwe (2000) Geochemical evidence for an impact origin for a Late Archean spherule layer, Transvaal Supergroup, South Africa. Geology, 28 (12) 1103-1106 doi:10.1130/0091-7613(2000)028<1103:gefaio>2.3.co;2
	Hoehnel, Desirée, Reimold, Wolf Uwe, Altenberger, Uwe, Hofmann, Axel, Mohr-Westheide, Tanja, Özdemir, Seda, Koeberl, Christian (2018) Petrographic and Micro-XRF analysis of multiple archean impact-derived spherule layers in drill core CT3 from the northern Barberton Greenstone Belt (South Africa) Journal of African Earth Sciences, 138. 264-288 doi:10.1016/j.jafrearsci.2017.11.020
	Reimold, Wolf Uwe, Armstrong, Richard A, Koeberl, Christian (2002) A deep drillcore from the Morokweng impact structure, South Africa: petrography, geochemistry, and constraints on the crater size. Earth and Planetary Science Letters, 201 (1) 221-232 doi:10.1016/s0012-821x(02)00658-1
	Ozdemir, Seda, Schulz, Toni, van Acken, David, Luguet, Ambre, Reimold, W. Uwe, Koeberl, Christian (2019) Meteoritic highly siderophile element and Re‐Os isotope signatures of Archean spherule layers from the CT 3 drill core, Barberton Greenstone Belt, South Africa. Meteoritics & Planetary Science, 54 (10) 2203-2216 doi:10.1111/maps.13234
	Reimold, Wolf Uwe, Koeberl, Christian (2014) Impact structures in Africa: A review. Journal of African Earth Sciences, 93. 57-175 doi:10.1016/j.jafrearsci.2014.01.008