Oliver Tschauner and Shichun Huang (both Geoscience) recently published an article titled,  “Ice-VII Inclusions in Diamonds: Evidence for Aqueous Fluid in Earth’s deep Mantle,” in Science magazine.

The research team discovered the first direct evidence that fluid water pockets may exist as far as 500 miles deep into the Earth’s mantle. The groundbreaking research found diamonds pushed up from the Earth’s interior had traces of unique crystallized water called Ice-VII.