Carbonatites are familiar to students of petrology as rare igneous rocks formed
predominantly of carbonate, whose only modern expression is a single active volcano that …

Minerals included in diamonds provide direct information about the petrologic and chemical
environment of diamond crystallization. They record information relating to local and …

The ultimate origin of water in the Earth's hydrosphere is in the deep Earth—the mantle.
Theory and experiments,, have shown that although the water storage capacity of olivine …

Geological pathways for the recycling of Earth's surface materials into the mantle are both
driven and obscured by plate tectonics,–. Gauging the extent of this recycling is difficult …

A primary consequence of plate tectonics is that basaltic oceanic crust subducts with
lithospheric slabs into the mantle. Seismological studies extend this process to the lower …

One of the key scientific questions about diamonds is “how are they formed?” To answer this
question, we need to know the diamond-forming reactions and the physicochemical …

Partial melting in the Earth's mantle plays an important part in generating the geochemical
and isotopic diversity observed in volcanic rocks at the surface. Identifying the composition …

Effective CO2-storage in the shallow solid Earth mainly occurs by the formation of
carbonates. Although the possibility of transport and storage of carbonates to great depth is …

Studies of the inclusions contained in natural diamonds have shown the occurrence of
minerals which must have formed at depths below the lithosphere and which may be closely …

We report on a suite of diamonds from the Cretaceous Collier 4 kimberlite pipe, Juina, Brazil,
that are predominantly nitrogen-free type II crystals showing complex internal growth …