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1 May 2017

Accretionary lapilli from Archean volcanic eruptions

Accretionary lapilli from Archean volcanic eruptions

Volcanic “hailstones” called accretionary lapilli rained down on South Africa 3 billion years ago, and have survived to be seen in the present day, along the R40 road through Barberton Mountain Land, near the Bulembu border crossing into Swaziland.

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