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Coesite and stishovite in the Vredefort Dome, South Africa

Nature volume 272, pages 715–717 (1978)Cite this article

Abstract

THE high pressure silica polymorphs, coesite and stishovite have been discovered in very thin pseudotachylite veins developed in Witwatersrand quartzites of the collar of the Vredefort Dome. They are associated with microcrystalline fibrous quartz which is interpreted as reverted diaplectic silica glass. The presence of these minerals strongly supports the interpretation of the Vredefort Dome as an astrobleme.

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Authors and Affiliations

  1. Geological Survey, Private Bag X112, Pretoria, Republic of South Africa

    J. E. J. MARTINI

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  1. J. E. J. MARTINI
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MARTINI, J. Coesite and stishovite in the Vredefort Dome, South Africa. Nature 272, 715–717 (1978). https://doi.org/10.1038/272715a0

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