The concentration and distribution of water in the Earth has influenced its evolution
throughout its history. Even at the trace levels contained in the planet's deep interior (mantle …

Earth's carbon, derived from planetesimals in the 1 AU region during accretion of the Solar
System, still retains similarities to carbon found in meteorites (Marty et al. 2013) even after …

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 …

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

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 …

Precise Sr, Nd and Hf isotopic data are important indicators in deciphering the evolution of
magmatic rocks and their source. However, such data are difficult to obtain for kimberlite …

Diamonds form in the upper mantle during episodic events and have been transported to the
Earth's surface from at least the Archean to the Phanerozoic. Small diamonds occur as …

The internal structure and dynamics of Earth have been shaped by the 660 km boundary
between the mantle transition zone and lower mantle. However, due to the paucity of natural …

Many, and perhaps all, oceanic island basalts (OIB) clearly contain a component of crustal
materials that have been returned to the mantle through subduction or other processes. One …