1.27-km mantle core uncovers Earth's hidden interior
Scientists pulled a 1,268‑meter section from the Earth’s mantle during JOIDES Resolution Expedition 399, a milestone in Earth science. The mantle rocks show less pyroxene and more magnesium than expected, suggesting more melting in the mantle than previously thought and offering new clues about how magma forms and powers seabed volcanism. The findings also hint that olivine reacting with seawater could produce hydrogen, a potential piece of life’s origin puzzle. The team, led by Professor Johan Lissenberg, will continue analyses, with the study published in Science.
