Sublithospheric diamonds and the inclusions they may carry crystallize in the
asthenosphere, transition zone, or uppermost lower mantle (from 300 to∼ 800 km), and are …

Silicate perovskite-type phases are the most abundant constituent inside our planet and are
the predominant minerals in Earth's lower mantle more than 660 kilometers below the …

Exoplanets with radii between those of Earth and Neptune have stronger surface gravity
than Earth, and can retain a sizable hydrogen-dominated atmosphere. In contrast to gas …

Recent geochemical studies document a wide range of 182 W anomalies in mantle-derived
rocks, the origin of which is unknown. Here we explore the consequences of basal magma …

Geochemical observations of ocean island and mid‐ocean ridge basalts suggest that
abundances of heat‐producing elements (HPEs: U, Th, and K) vary within the mantle …

ThO2 is an important material for understanding the heat budget of Earth's mantle, as well as
the stability of nuclear fuels at extreme conditions. We measured the in situ high-pressure …

The amount and distribution of radioactive heat-producing elements within the man-36 tle
exerts an important control on the thermal evolution of the mantle and core. Deter-37 mining …

The mineralogy of the deep mantle is one of the key factors for the chemical evolution of the
Earth. The constituent minerals of the mantle rock control the physical properties of the …

In this thesis, density functional theory (DFT) based first-principles calculations were used to
study the properties of various materials. The specific focus was placed on vibrational …

The juvenile ultramafic lower mantle is composed of the mineral association: bridgmanite+
ferropericlase+ CaSi-perovskite+ free silica. Bridgmanite, with mg= 0.84–0.96 forms two …