Constraining the core's composition is essential for understanding Earth accretion, core
formation and the sustainment of Earth's magnetic field. Earth's outer and inner core exhibit …

This paper provides the state-of-the-art discussion of major aspects of the composition and
evolution of the Earth's core. A comparison of experimentally-derived density of Fe with …

Earth's core is likely the largest reservoir of carbon (C) in the planet, but its C abundance has
been poorly constrained because measurements of carbon's preference for core versus …

Earth's inner core (IC) is less dense than pure iron, indicating the existence of light elements
within it. Silicon, sulfur, carbon, oxygen and hydrogen have been suggested to be the …

Pebbles of millimeter sizes are abundant in protoplanetary discs around young stars.
Chondrules inside primitive meteorites—formed by melting of dust aggregate pebbles or in …

Investigations into the compositional model of the Earth, particularly the atypical
concentrations of volatile elements within the silicate portion of the early Earth, have …

Geophysical and geochemical evidence suggests that Earth's core is predominantly made of
iron (or iron-nickel alloy) with several percent of light elements. However, Earth's solid inner …

Geophysical and cosmochemical constraints suggest the inner-core is mainly composed of
iron with a few percent of light elements. However, despite extensive studies over many …

Melting of carbonated eclogite or peridotite in the mantle influences the Earth's deep volatile
cycles and bears on the long-term evolution of the atmosphere. Existing data on the melting …

The first finds of iron nitrides and carbonitride as inclusions in lower-mantle diamond from
Rio Soriso, Brazil, are herein reported. These grains were identified and studied with the use …