Results 91 to 100 of about 9,211 (194)

Methods for Cleaning Apollo Passive Seismic Data

open access: yesEarth and Space Science, Volume 12, Issue 12, December 2025.
Abstract Apollo passive seismic data provide a unique resource for studying the lunar interior structure. However, the raw data are frequently contaminated by various artifacts, either related to the seismic sensors and the acquisition system or to issues during data transmission to the Earth.
Xiang Zhang   +8 more
wiley   +1 more source

Palagonitization of Volcanic Rocks in Polar Climates: The Case of Deception Island (Antarctica)

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract A detailed study of palagonitization in rocks from Deception Island—one of Antarctica's most active volcanoes—has been performed to advance our understanding of this alteration process. A detailed petrographic (optical and SEM), mineralogical (XRD), and mineral and glass spot geochemistry (EDS and EMP) characterization has been conducted on ...
Oriol Vilanova‐Pagès   +10 more
wiley   +1 more source

Facies Characterization and Volcanic Source Assignment of Marine Tephra Deposits Around São Miguel Island, Azores Archipelago

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Long‐term tephrostratigraphies of volcanic islands such as the Azores are often limited to young and incomplete subaerial records. Here, we present a Pleistocene‐Holocene marine tephra archive around the eastern islands of the Azores based on 22 marine gravity cores.
J. C. Schindlbeck‐Belo   +8 more
wiley   +1 more source

Restoring the Missing Late Cretaceous Arc of Iran

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Persistent arc magmatism archives fluid transport and mantle partial melting in subduction zones. However, arc magmatism often exhibits different magmatic records along the strike, as seen in the Tethyan orogenic belt. During Neo‐Tethys subduction under Iran, there was pulsed arc magmatism with Middle Jurassic and Eocene magmatic flare‐ups ...
Yiyang Lei   +10 more
wiley   +1 more source

Widespread PREMA in the upper mantle indicated by low-degree basaltic melts. [PDF]

open access: yesNat Commun, 2023
Cai R   +5 more
europepmc   +1 more source

High‐Density Seismic Network for Improved Tomographic Imaging of the Ecuadorian Forearc: Slip Mode Controlled by In Situ Material Heterogeneity

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Large subduction earthquakes often occur along the Ecuadorian margin. Following the 2016 Pedernales megathrust earthquake (Mw 7.8), a temporary network of 82 stations recorded its aftershocks. Data from this international response and the permanent network run by IG‐EPN showed that subducted seafloor topography, accreted terranes, and ...
Alexander Wickham‐Piotrowski   +7 more
wiley   +1 more source

Strain Rates Along the Alpine‐Himalayan Belt From a Comprehensive GNSS Velocity Field

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract The Alpine‐Himalayan belt is one of Earth's most dynamic and complex regions, characterized by intense tectonic deformation and seismicity. Comprehensive analyses of continental‐scale crustal deformation and seismic hazards along this extensive orogenic belt require the compilation of large geodetic data sets.
N. Castro‐Perdomo   +5 more
wiley   +1 more source

B‐Value Evolution During the Strasbourg 2018–2022 Sequence of Induced Earthquakes

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract The b‐value, defined as the slope of the cumulative earthquake frequency–magnitude distribution in semi‐logarithmic space, quantifies the relative occurrence of small and large earthquakes. It is a key metric for hazard assessment and is often used in adaptive traffic light systems to mitigate induced seismicity.
R. Minetto, O. Lengliné, J. Schmittbuhl
wiley   +1 more source

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