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Reduced Grain Size in Oceanic Asthenosphere and Implications for Mantle Dynamics
AGU 2024
study of earth's deep interior | 13 december 2024
Joshua B. Russell, Colleen A. Dalton, Christopher ...
The weak asthenosphere beneath oceanic plates plays an important role in facilitating plate tectonics. Yet, the primary cause(s) of low viscosity and ...
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New Observations of Small-Scale Mantle Heterogeneity Beneath 90 Ma Oceanic Lithosphere
AGU 2024
seismology | 11 december 2024
Anant Hariharan, Zachary Eilon, James B. Gaherty, ...
Seismic images of the oceanic upper mantle provide opportunities to study regional asthenospheric dynamics and ascertain the role of small-scale conve...
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Oceanic Crustal Thickness Variation Revealed by Joint Gravity and Seismic Inversions Across the Pacific
AGU 2024
seismology | 11 december 2024
Joseph Phillips, James B. Gaherty, Joshua B. Russe...
Understanding variabilities of oceanic crust thickness is fundamental to unraveling the history and dynamics of lithosphere formation. Satellite-deriv...
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On the origin of the Hawaiian Swell: Lithosphere and asthenosphere seismic structure from Rayleigh wave dispersion.
AGU 2024
volcanology, geochemistry and petrology | 09 december 2024
Kai Xun Chen, Donald W. Forsyth
In this study, we re-examine the shear velocity structure in the vicinity of the Hawaiian hotspot and Hawaiian swell using Rayleigh wave data from the...
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On the Origin of the Hawaiian Swell: Lithosphere and Asthenosphere Seismic Structure From Rayleigh Wave Dispersion
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
21 july 2024
Kai Xun Chen, Donald W. Forsyth
In this study, we revisit the shear‐wave velocity structure of the lithosphere and asthenosphere surrounding the Hawaiian hotspot and Hawaiia...
A Mid‐Lithospheric Discontinuity Detected Beneath 155 Ma Western Pacific Seafloor Using Sp Receiver Functions
GEOPHYSICAL RESEARCH LETTERS
10 march 2024
Kai-Xun Chen, Karen M. Fischer, Donald W. Forsyth
This study probes the lithosphere‐asthenosphere system beneath 155 Ma Pacific seafloor using teleseismic S‐to‐p receiver fun...
Spatial Variation in Anisotropic Shear Velocity of Old Oceanic Lithosphere-Asthenosphere in the Southwest Pacific
SEISMIC ANISOTROPY AND MANTLE DYNAMICS: OBSERVATIONS, MODELS, AND EXPERIMENTS II ORAL
study of earth's deep interior | 14 december 2023
Joseph Phillips, James B. Gaherty, Joshua B. Russe...
Regional anisotropic structure of the oceanic lithosphere-asthenosphere system provides important constraints on the formation, evolution, and dynamic...
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Teleseismic Shear-wave Splitting with Data from the Old ORCA Experiment in the Southwest Pacific
SEISMIC ANISOTROPY AND MANTLE DYNAMICS: OBSERVATIONS, MODELS, AND EXPERIMENTS II ORAL
study of earth's deep interior | 14 december 2023
Joshua Finch, Joseph S. Byrnes, Joseph Phillips, J...
Results from SKS splitting provide constraints on seismic anisotropy in the upper mantle, which helps constrain the dynamics of the lithosphere-asthen...
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