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Now, isotope analyses of the tiny silicate and sulphide inclusions in the diamonds have revealed how this supercontinent formed, stabilized, and moved around the planet. Diamonds are one of the very rare minerals resistant enough to survive and witness the supercontinent cycle. The supercontinent cycle involves the recurring construction and dissolution of supercontinents over hundreds of millions of years. It is driven by the movement of tectonic plates, which are large sections of the Earth's lithosphere that float on the semi-fluid asthenosphere beneath them.
Violent volcanic eruptions then transported the diamonds to Earth's surface 90 million years ago, and with them the secrets of how Gondwana may have formed.
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