Komatiite. This is volcanic rock that formed when very hot magma cooled rapidly about 3500 million years ago. Komatiite is confined to structures that

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Komatiite. This is volcanic rock that formed when very hot magma cooled rapidly about 3500 million years ago. Komatiite is confined to structures that formed during the early Earth and are not found in modern volcanoes. This sample is from Barberton in Mpumalanga, South Africa

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Photo credit: © SHEILA TERRY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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