Z. Eilon
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View article: Observations of Small‐Scale Heterogeneity in the Upper Mantle Beneath Old Oceanic Lithosphere
Observations of Small‐Scale Heterogeneity in the Upper Mantle Beneath Old Oceanic Lithosphere Open
We present tomographic images of the velocity structure of the upper mantle beneath old ( Ma) oceanic lithosphere, derived from arrival time measurements of teleseismic body waves recorded by ocean‐bottom seismometers. Differential travel …
View article: Understanding Sub‐Lithospheric Small‐Scale Convection by Linking Models of Grain Size Evolution, Mantle Convection, and Seismic Tomography
Understanding Sub‐Lithospheric Small‐Scale Convection by Linking Models of Grain Size Evolution, Mantle Convection, and Seismic Tomography Open
The interaction between aging oceanic plates and their underlying mantle is a crucial component of the plate tectonic cycle. Sub‐lithospheric small‐scale convection (SSC) explains why plates appear not to thicken after a certain age. Here,…
View article: Attenuation and Velocity Tomography of the Northern East African Rift
Attenuation and Velocity Tomography of the Northern East African Rift Open
The northern East African Rift, including the Main Ethiopian Rift (MER) and Afar, have been the focus of decades of seismological investigations and dense broadband coverage. Sometimes invoked as an archetype for a narrow continental rift,…
View article: A New View of Shear Wavespeed and the Lithosphere‐Asthenosphere Boundary in the Southwestern United States
A New View of Shear Wavespeed and the Lithosphere‐Asthenosphere Boundary in the Southwestern United States Open
The Southwestern United States experiences active deformation, seismicity, and magmatism, remarkable in an intraplate setting. The Basin and Range and Colorado Plateau (CP) are inferred to differ in lithospheric thickness, but modeling geo…
View article: Plate‐Scale Imaging of Eastern US Reveals Ancient and Ongoing Continental Deformation
Plate‐Scale Imaging of Eastern US Reveals Ancient and Ongoing Continental Deformation Open
Eastern North America was constructed over several Wilson cycles, culminating in the breakup of Pangea. Previous seismological imaging lacked the resolution to depict precisely how ancient tectonic boundaries manifest throughout the lithos…
View article: Plate-scale imaging of eastern US reveals ancient and ongoing continental deformation
Plate-scale imaging of eastern US reveals ancient and ongoing continental deformation Open
This is the tomography dataset from "Plate-scale imaging of eastern US reveals ancient and ongoing continental deformation", submitted to Geophysical Research Letters in 2024-02. A Matlab file is included, which can also be opened using Py…
View article: Sub-Lithospheric Small-Scale Convection as a Window into the Asthenosphere: Insights from Integrating Models Of Mantle Convection, Grain Size Evolution and Seismic Tomography
Sub-Lithospheric Small-Scale Convection as a Window into the Asthenosphere: Insights from Integrating Models Of Mantle Convection, Grain Size Evolution and Seismic Tomography Open
Understanding the interaction between oceanic plates and the underlying asthenosphere and its impact on plate thickness is essential for explaining plate motions and mantle convection patterns. While sub-lithospheric small-scale convection…
View article: Plate-scale imaging of eastern US reveals ancient and ongoing continental deformation
Plate-scale imaging of eastern US reveals ancient and ongoing continental deformation Open
This is the tomography dataset from "Plate-scale imaging of eastern US reveals ancient and ongoing continental deformation", submitted to Geophysical Research Letters in 2024-02. A Matlab file is included, which can also be opened using Py…
View article: Understanding Broadband Ocean Bottom Seismometer Noise: Fresh Insights and Future Directions
Understanding Broadband Ocean Bottom Seismometer Noise: Fresh Insights and Future Directions Open
The proliferation of broadband ocean bottom seismometer (BBOBS) deployments over the last two decades has generated key datasets from diverse marine environments, improving our understanding of tectonics and earthquake processes. In turn, …
View article: Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska
Variations in Lithospheric Thickness Across the Denali Fault and in Northern Alaska Open
While variations in crustal structure beneath the Denali fault in Alaska are well‐documented, the existence of fault‐correlated structures throughout the entire thickness of the continental lithosphere is not. A new model of shear‐wave vel…
View article: Sub‐Lithospheric Small‐Scale Convection Tomographically Imaged Beneath the Pacific Plate
Sub‐Lithospheric Small‐Scale Convection Tomographically Imaged Beneath the Pacific Plate Open
Small‐scale convection beneath the oceanic plates has been invoked to explain off‐axis nonplume volcanism, departure from simple seafloor depth‐age relationships, and intraplate gravity lineations. We deployed 30 broadband ocean bottom sei…
View article: Sub-Lithospheric Small-Scale Convection Tomographically Imaged Beneath the Pacific Plate
Sub-Lithospheric Small-Scale Convection Tomographically Imaged Beneath the Pacific Plate Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Geophysical Research Letters. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn mo…
View article: Broadband Ocean Bottom Seismometer Noise Properties
Broadband Ocean Bottom Seismometer Noise Properties Open
We present a new compilation and analysis of broadband ocean bottom seismometer noise properties from 15 years of seismic deployments. We compile a comprehensive dataset of representative four-component (seismometer and pressure gauge) noi…
View article: Distributed Extension Across the Ethiopian Rift and Plateau Illuminated by Joint Inversion of Surface Waves and Scattered Body Waves
Distributed Extension Across the Ethiopian Rift and Plateau Illuminated by Joint Inversion of Surface Waves and Scattered Body Waves Open
The East African Rift System provides a rare location in which to observe a wide scope of rifting states. Well‐defined active narrow rifting in the Main Ethiopian Rift (MER) transitions to incipient extension and eventually pre‐rifted lith…
View article: Mantle Structure and Flow Across the Continent‐Ocean Transition of the Eastern North American Margin: Anisotropic <i>S</i> ‐Wave Tomography
Mantle Structure and Flow Across the Continent‐Ocean Transition of the Eastern North American Margin: Anisotropic <i>S</i> ‐Wave Tomography Open
Little has been seismically imaged through the lithosphere and mantle at rifted margins across the continent‐ocean transition. A 2014–2015 community seismic experiment deployed broadband seismic instruments across the shoreline of the east…
View article: Distributed Extension across the Ethiopian Rift and Plateau Illuminated by Joint Inversion of Surface Waves and Scattered Body Waves
Distributed Extension across the Ethiopian Rift and Plateau Illuminated by Joint Inversion of Surface Waves and Scattered Body Waves Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at G-Cubed. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints pr…
View article: Teleseismic Attenuation, Temperature, and Melt of the Upper Mantle in the Alaska Subduction Zone
Teleseismic Attenuation, Temperature, and Melt of the Upper Mantle in the Alaska Subduction Zone Open
Seismic deployments in the Alaska subduction zone provide dense sampling of the seismic wavefield that constrains thermal structure and subduction geometry. We measure P and S attenuation from pairwise amplitude and phase spectral ratios f…
View article: Breaking Up Is Hard to Do, Especially for Continents
Breaking Up Is Hard to Do, Especially for Continents Open
A decade-long research collaboration has revealed that the split between Africa and North America roughly 200 million years ago was more drawn out than previously thought.
View article: Imaging central Pacific upper mantle using P-wave tomography and receiver functions
Imaging central Pacific upper mantle using P-wave tomography and receiver functions Open
Several aspects of the oceanic lithospheric mantle remain unknown, largely due to the lack of dense local seismic instrumentation. In particular, we do not understand the nature of lithosphere-asthenosphere boundary, sparsely observed mid-…
View article: COVID-19 Societal Response Captured by Seismic Noise in China and Italy
COVID-19 Societal Response Captured by Seismic Noise in China and Italy Open
\nSeismic noise with frequencies above 1 Hz is often called “cultural noise” and is generally correlated quite well with human activities. Recently, cities in mainland China and Italy imposed restrictions on travel and day-to-day acti…
View article: Depth‐Dependent Azimuthal Anisotropy Beneath the Juan de Fuca Plate System
Depth‐Dependent Azimuthal Anisotropy Beneath the Juan de Fuca Plate System Open
We use surface wave measurements to reveal anisotropy as a function of depth within the Juan de Fuca and Gorda plate system. Using a two‐plane wave method, we measure phase velocity and azimuthal anisotropy of fundamental mode Rayleigh wav…
View article: COVID-19 societal response captured by seismic noise in China and Italy
COVID-19 societal response captured by seismic noise in China and Italy Open
Seismic noise with frequencies above 1 Hz is often called cultural noise and is generally correlated quite well with human activities. Recently, cities in mainland China and Italy imposed lockdown restrictions in response to COVID-19, whic…
View article: Depth dependent azimuthal anisotropy beneath the Juan de Fuca plate system
Depth dependent azimuthal anisotropy beneath the Juan de Fuca plate system Open
We use surface wave measurements to reveal anisotropy as a function of depth within the Juan de Fuca and Gorda plate system. Using a two-plane wave method, we measure phase velocity and azimuthal anisotropy of fundamental mode Rayleigh wav…
View article: Amphibious surface-wave phase-velocity measurements of the Cascadia subduction zone
Amphibious surface-wave phase-velocity measurements of the Cascadia subduction zone Open
SUMMARY A new amphibious seismic data set from the Cascadia subduction zone is used to characterize the lithosphere structure from the Juan de Fuca ridge to the Cascades backarc. These seismic data are allowing the imaging of an entire tec…
View article: Midcrustal Deformation in the Central Andes Constrained by Radial Anisotropy
Midcrustal Deformation in the Central Andes Constrained by Radial Anisotropy Open
The Central Andes are characterized by one of the largest orogenic plateaus worldwide. As a result, they are home to some of the thickest continental crust observed today (up to ~75‐km thick). Understanding the response of the crust to suc…
View article: The importance of grain size to mantle dynamics and seismological observations
The importance of grain size to mantle dynamics and seismological observations Open
Grain size plays a key role in controlling the mechanical properties of the Earth's mantle, affecting both long‐time‐scale flow patterns and anelasticity on the time scales of seismic wave propagation. However, dynamic models of Earth's co…
View article: High seismic attenuation at a mid-ocean ridge reveals the distribution of deep melt
High seismic attenuation at a mid-ocean ridge reveals the distribution of deep melt Open
Seismic attenuation beneath a mid-ocean ridge indicates a deep, narrow column of mantle melt, implying buoyant upwelling.
View article: High seismic attenuation at a mid-ocean ridge reveals the distribution of deep melt
High seismic attenuation at a mid-ocean ridge reveals the distribution of deep melt Open
At most mid-ocean ridges, a wide region of decompression melting must be reconciled with a narrow neovolcanic zone and the establishment of full oceanic crustal thickness close to the rift axis. Two competing paradigms have been proposed t…
View article: A joint inversion for shear velocity and anisotropy: the Woodlark Rift, Papua New Guinea
A joint inversion for shear velocity and anisotropy: the Woodlark Rift, Papua New Guinea Open
Trade-offs between velocity and anisotropy heterogeneity complicate the interpretation of differential traveltime data and have the potential to bias isotropic tomographic models. By constructing a simple parametrisation to describe an ela…