Results 71 to 80 of about 1,819 (186)
Tectonics, Volume 45, Issue 8, August 2026.Abstract Rayleigh‐Taylor instabilities within the upper mantle are investigated as a mechanism for the uplift of rift‐margin mountain ranges within the continents. Our focus is on the Transantarctic Mountains (TAM). These mountains form at the margin between East and West Antarctica and have been free from the effects of subduction for about 500 ...
Tim Stern +3 more
wiley +1 more source
Ambient seismic noise tomography of the Antarctic continent [PDF]
, 2019 The lithosphere of Antarctica reacts to both the stress variations due to the dynamics of the mantle and the variation of the glacial load due to changes in climate. These two factors act on the dynamics of the glacial mass, on the evolution of the continent's topography and on the plate seismicity.
openaire +1 more source
Inversion by Intrusion: Magma‐Driven Shortening in the Turkana Rift (East Africa)
Tectonics, Volume 45, Issue 8, August 2026.Abstract Late Pliocene to Pleistocene inversion in the Turkana Rift, observed on seismic reflection data and in outcrop, presents a tectonic paradox by indicating local shortening in an overall extensional setting. Previous studies attributed this inversion either to the reactivation of obliquely oriented structural weaknesses or to reorientation of ...
Ameha A. Muluneh +6 more
wiley +1 more source
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract The diverse volcanic activity in the Alaska Peninsula section of the Alaska‐Aleutian subduction zone is presumably caused by substantial variations in mantle wedge melting or trans‐crustal processes beneath the arc. In this study, we investigate sub‐arc melting beneath the Alaska Peninsula by measuring P‐wave attenuation, as attenuation is ...
Zhuoran Zhang +4 more
wiley +1 more source
Wave field inversion of ambient seismic noise
Proceedings, 2017 We formulate a full wave field inversion for ambient seismic noise recorded by large and dense seismograph arrays. Full wave field inversion exploits the constraints on the gradients of the wave field that array data inherently possess (the sum is greater than its parts). Consequently, we can relax the spatial and temporal constraints on the wave field
De Ridder, S, Maddison, JR
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Dynamic Evolution of Forearc Subsidence Controlled by Slab Geometry
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract Several subduction zones worldwide present an enigmatic forearc topography and strain characterized by extension at a forearc ridge near the trench and shortening within a forearc valley located between the ridge and the magmatic arc. The development of this topography has been linked to progressive slab steepening, while strain patterns ...
F. Bolrão, W. P. Schellart
wiley +1 more source
Heritage, 2018 Monitoring seismic structural response is an essential issue in earthquake risk assessments and mitigation studies for monumental buildings in order to undertake earthquake disaster management.
Margarita Moisidi +2 more
doaj +1 more source
Seismic Insights Into the Role of Rockfall in Rockslide Destruction Processes
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.Abstract The dynamic link between rockslide failure and rockfall activity remains elusive, primarily due to the challenge of detecting weak signals amidst high noise. We propose a seismic attribute guided deep learning framework that formulates rockfall detection as a time‐series segmentation task, facilitating the precise extraction of rockfall events
Yaojun Wang +4 more
wiley +1 more source
Reflection images from ambient seismic noise
Geophysics, 2009 Abstract One application of seismic interferometry is to retrieve the impulse response (Green's function) from crosscorrelation of ambient seismic noise. Various researchers show results for retrieving the surface-wave part of the Green's function. However, reflection retrieval has proven more challenging.
Draganov, D.S. (author) +4 more
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Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Edges of sedimentary basins generate complex seismic wavefield effects and localized amplification. Characterizing these effects and incorporating them into hazard models is difficult because tomographic models are often smooth and wavefield observations are often aliased.
J. Atterholt +3 more
wiley +1 more source