A hidden carbon cycle exists inside Earth. Every year, megatons of carbon disappear into
subduction zones, affecting atmospheric carbon dioxide and oxygen over Earth's history …

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

Diamond crystallization ages are essential information for science and industry, leading to
an understanding of how, why, and where diamonds form in Earth and how best to find …

Carbon in the upper mantle controls incipient melting of carbonated peridotite and so acts as
a critical driver of plate tectonics. The carbon-rich melts that form control the rate of volatile …

The nature and cause of deep earthquakes remain enduring unknowns in the field of
seismology. We present new models of thermal structures of subducted slabs traced to …

Abstract Ferropericlase [(Mg, Fe) O] is one of the major constituents of Earth's lower mantle
and the most abundant mineral inclusion in sub-lithospheric diamonds. Although a lower …

Diamonds and their inclusions are some of the most scientifically valuable samples of the
Earth (Haggerty 1999; Shirey et al. 2019). Among the analytical techniques used to study …

Calcium (Ca) is a fluid-mobile element and plays a pivotal role in regulating carbon cycling
through the precipitation of calcium carbonate. Calcium isotopes have been proposed as a …

A study of five diamonds containing mineral and fluid inclusions, selected among forty-nine
specimens from the Cullinan Mine, South Africa, was carried out to better document the …

Carbon plays important roles in the evolution of the atmosphere and biosphere, and
geochemical differentiation in Earth's interior. Most subducted C is recycled to the deep …