Underwater volcano off Madagascar spews magma containing 4.5-billion-year-old traces of Earth's primordial magma ocean
By
Christa Lesté-Lasserre
Summary
Scientists have discovered that a young underwater volcano off the coast of Madagascar is spewing magma containing chemical traces of Earth's primordial magma ocean — material dating back 4.5 billion years to the planet's earliest formation. This finding challenges the long-held assumption that Earth's mantle has been churning for billions of years, erasing all chemical evidence of its early history. The discovery provides direct proof that ancient materials from Earth's original magma ocean have survived in the deep mantle and are now being brought to the surface by volcanic activity.
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Key quotes
· 1 pulledThis is going to change a lot of things [in earth science], because now we have proof that materials dating back 4.5 billion years – from the very beginning
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