Initially, it may seem extremely daunting to be sitting in front of several thousand carats of
small diamonds, knowing that the likelihood of finding a diamond with a meaningful …

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 …

Supercritical aqueous fluids link subducting plates and the return of carbon to Earth's
surface in the deep carbon cycle,. The amount of carbon in the fluids and the identities of the …

This review combines fluid inclusion data from (HP-) UHP rocks with experimental research
and thermodynamic models to investigate the chemical and physical properties of fluids …

As a relatively stable craton block in the earth system, the petroliferous basin is influenced
by the evolution of the earth system from the early development environment of source …

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 …

Metamorphosed Jurassic oceanic sediment in the Italian Alps experienced peak P–T
conditions (1.5–3.0 GPa; 330–550° C) similar to those experienced by sediments …

Leveraging a high resolution geological and structural dataset acquired over decades of
fieldwork, we build the 3D structural model of a portion of the highly deformed core of the …

Diamond formation has typically been attributed to redox reactions during precipitation from
fluids or magmas. Either the oxidation of methane or the reduction of carbon dioxide has …

At subduction zones, most diamonds form by carbon saturation in hydrous fluids released
from lithospheric plates on equilibration with mantle rocks. Although organic molecules are …