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 …

Perhaps the first point to address in this chapter is what role, or roles, experimental petrology
can play in understanding the formation of natural diamond. As can be seen from the other …

Carbon emissions have caused serious climate changes such as global warming, glacier
melting, and sea level rise. Carbon neutrality has become a global target and the …

A model is presented for predicting the composition (H2O, CO2, CH4, H2, CO, O2 and
C2H6) in the C–O–H fluid system under high temperatures and pressures found in the …

Deeply subducted carbonate rocks from the Kokchetav massif (Northern Kazakhstan)
recrystallised within the diamond stability field (P= 4.5–6.0 GPa; T≈ 1000° C) and preserve …

Nowadays, synthetic diamonds are easy to fabricate industrially, and a wide range of
methods were developed during the last century. Among them, the high-pressure–high …

Abstract Mixed-habit (octahedral+ cuboid) diamonds from the Marange alluvial deposits in
the eastern Zimbabwe craton have high nitrogen and hydrogen contents that provide an …

Some seismic models derived from tomographic studies indicate elevated shear‐wave
velocities (≥ 4.7 km/s) around 120–150 km depth in cratonic lithospheric mantle. These …

Crystallization of diamond and graphite from the carbon component of magnesite, upon its
decarbonation in reactions with coesite and enstatite at pressures of 6-7 GPa and …

Monocrystalline type Ia diamonds with octahedral growth morphology prevail among
lithospheric diamonds, including precious stones. Unlike less common 'fibrous' diamonds …