The lithospheric-to-lower-mantle carbon cycle recorded in superdeep diamonds

The lithospheric-to-lower-mantle carbon cycle recorded in superdeep diamonds

Nature, Published online: 09 September 2020; doi:10.1038/s41586-020-2676-z

Oxygen isotope measurements of mineral inclusions in superdeep diamonds indicate that carbonated igneous oceanic crust is the primary carbon-bearing reservoir in slabs subducted to deep-lithospheric and transition-zone depths.
Source: Nature