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Science 12 November 1976:
Vol. 194. no. 4266, pp. 724 - 725
DOI: 10.1126/science.194.4266.724
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Articles

Spherules on Shatter Cone Surfaces from the Vredefort Structure, South Africa

N. C. GAY 1

1 Bernard Price Institute of Geophysical Research, University of Witwatersrand, Johannesburg, South Africa

Spherical particles of silicate composition occur on the surface of some shatter cones from the collar rocks around the Vredefort structure, South Africa. They are best developed on shatter cones from a shale horizon but are also found on more arenaceous rocks and banded ironstones. They have not been found on shatter cones from the purer quartzites.

Submitted on June 2, 1976
Revised on August 3, 1976

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Science. ISSN 0036-8075 (print), 1095-9203 (online)