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8 papers · 1 filter
A Punctuated Equilibrium Analysis of the Climate Evolution of Cenozoic exhibits a Hierarchy of Abrupt Transitions
Denis-Didier Rousseau, Witold Bagniewski, Valerio Lucarini
The Earth's climate has experienced numerous critical transitions during its history, which have often been accompanied by massive and rapid changes in the biosphere. Such transiti…
PBE-GGA Predicts the B8B2 Phase Boundary of FeO at Earth's Core Conditions
Zhen Zhang, Yang Sun, Renata M. Wentzcovitch
FeO is a crucial phase of the Earth's core, and its thermodynamic properties are essential to developing more accurate core models. It is also a notorious correlated insulator in t…
Surviving in Ocean Worlds: Experimental Characterization of Fiber Optic Tethers across Europa-like Ice Faults and Unraveling the Sliding Behavior of Ice
Vishaal Singh, Christine McCarthy, Matthew Silvia +5
As an initial step towards in-situ exploration of the interiors of Ocean Worlds to search for life using cryobot architectures, we test how various communication tethers behave und…
Elastic anisotropy of lizardite at subduction zone conditions
Xin Deng, Chenxing Luo, Renata M. Wentzcovitch +2
Subduction zones transport water into Earth's deep interior through slab subduction. Serpentine minerals, the primary hydration product of ultramafic peridotite, are abundant in mo…
Ab initio melting temperatures of bcc and hcp iron under the Earth's inner core condition
Yang Sun, Mikhail I. Mendelev, Feng Zhang +5
There has been a long debate on the stable phase of iron under the Earth's inner core conditions. Because of the solid-liquid coexistence at the inner core boundary, the thermodyna…
Anharmonic thermodynamic properties and phase boundary across the post-perovskite transition in MgSiO
Zhen Zhang, Renata M. Wentzcovitch
To address the effects of lattice anharmonicity across the perovskite to post-perovskite transition in MgSiO, we conduct calculations using the phonon quasiparticle (PHQ) appro…