Spherules in the Barberton Greenstone Belt (IMAGE)
Caption
Spherules in the Barberton greenstone belt in the Kaapvaal craton, South Africa. Credit: Lowe et al., 2014: https://pubs.geoscienceworld.org/gsa/geology/article/42/9/747-750/131609
Credit
Lowe et al., 2014
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Credit: Lowe et al., 2014
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