Solids, liquids, and gases under high pressure

HK Mao, XJ Chen, Y Ding, B Li, L Wang - Reviews of Modern Physics, 2018 - APS
Pressure has long been recognized as a fundamental thermodynamic variable but its
application was previously limited by the available pressure vessels and probes. The …

Composition of the Earth's core: A review

KD Litasov, AF Shatskiy - Russian Geology and Geophysics, 2016 - Elsevier
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 …

Formation of diamonds in laser-compressed hydrocarbons at planetary interior conditions

D Kraus, J Vorberger, A Pak, NJ Hartley, LB Fletcher… - Nature …, 2017 - nature.com
The effects of hydrocarbon reactions and diamond precipitation on the internal structure and
evolution of icy giant planets such as Neptune and Uranus have been discussed for more …

Thermodynamics of diamond formation from hydrocarbon mixtures in planets

B Cheng, S Hamel, M Bethkenhagen - Nature Communications, 2023 - nature.com
Hydrocarbon mixtures are extremely abundant in the Universe, and diamond formation from
them can play a crucial role in sha** the interior structure and evolution of planets. With …

Key problems of the four-dimensional Earth system

H Mao, WL Mao - Matter and Radiation at Extremes, 2020 - pubs.aip.org
Compelling evidence indicates that the solid Earth consists of two physicochemically distinct
zones separated radially in the middle of the lower mantle at∼ 1800 km depth. The inner …

Diamond growth from C–H–N–O recycled fluids in the lithosphere: Evidence from CH4 micro-inclusions and δ13C–δ15N–N content in Marange mixed-habit …

KV Smit, SB Shirey, RA Stern, A Steele, W Wang - Lithos, 2016 - Elsevier
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 …

Aragonite-II and CaCO3-VII: New High-Pressure, High-Temperature Polymorphs of CaCO3

PN Gavryushkin, NS Martirosyan… - Crystal Growth & …, 2017 - ACS Publications
The importance for the global carbon cycle, the P–T phase diagram of CaCO3 has been
under extensive investigation since the invention of the high-pressure techniques. However …

Hydrocarbon accumulation depth limit and implications for potential resources prediction

X Pang, T Hu, S Larter, Z Jiang, M Li, L Wu, K Liu… - Gondwana …, 2022 - Elsevier
The horizontal distribution and periodic accumulation of hydrocarbon in reservoirs are well
understood. However, our understanding on the vertical distribution of hydrocarbon …

Planetary ices and the linear mixing approximation

M Bethkenhagen, ER Meyer, S Hamel… - The Astrophysical …, 2017 - iopscience.iop.org
The validity of the widely used linear mixing approximation (LMA) for the equations of state
(EOSs) of planetary ices is investigated at pressure–temperature conditions typical for the …

In-situ abiogenic methane synthesis from diamond and graphite under geologically relevant conditions

M Peña-Alvarez, AV Brovarone, ME Donnelly… - Nature …, 2021 - nature.com
Diamond and graphite are fundamental sources of carbon in the upper mantle, and their
reactivity with H2-rich fluids present at these depths may represent the key to unravelling …