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Drop of ancient seawater rewrites Earth's history

August 2, 2019 - General

The remains of a microscopic drop of ancient seawater has assisted in rewriting the history of Earth’s evolution when it was used to re-establish the time that plate tectonics started on the planet.

Unique texture of komatiite lava flows from the Barberton greenstone belt. The highly elongate crystals of olivine formed
at an eruption temperature of over 1600°C – over 300 degrees hotter than current day lavas on Hawaii
[Credit: Wits…

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Source: archeo

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