3 papers
physics.geo-ph2026
The tetragonal-cubic transition of davemaoite: Implications for lower mantle seismic anomalies
Yoshiyuki Okuda, Bin Chen, Juliana Peckenpaugh +5
Davemaoite (CaSiO3 perovskite) is the third most abundant mineral in Earth's lower mantle and a dominant phase in subducted oceanic crust. Its crystal structure is distorted (tetra…
physics.geo-ph2026
Low electrical conductivity of dry CaSiO3 perovskite under lower mantle conditions
Yoshiyuki Okuda, Bin Chen, Juliana Peckenpaugh +1
Electrical conductivity (EC) provides important constraints on the composition and volatile distribution of Earth's deep mantle, yet the EC of davemaoite (CaSiO3 perovskite), a maj…
physics.geo-ph2025
Electrical Conductivity of Superionic Hydrous SiO2 and the Origin of Lower-mantle High Conductivity Anomalies Beneath Subduction Zones
Mako Inada, Yoshiyuki Okuda, Kenta Oka +3
Electrical conductivity (EC) is one of the important physical properties of minerals and rocks that can be used to characterize the composition and structure of the deep interior o…