Results 101 to 110 of about 479 (137)

Metabolomic Signatures of Longevity in Bivalves Reveal Reorganization of TCA Cycle and Amino Acid Metabolism

Aging Cell, Volume 25, Issue 11, November 2026.
Targeted metabolomics of gill and mantle tissues from five marine bivalve species spanning lifespans from approximately 30 to over 500 years revealed longevity‐associated metabolic signatures. Longer‐lived species exhibited reduced free amino acid pools, lactate, pyruvate‐related ratios, fumarate and malate, alongside increased succinate‐to‐fumarate ...
Pauline Bertrand, Clément J. L. Chevret, Enrique Rodríguez, Hélène Lemieux, Pierre U. Blier   +4 more
wiley   +1 more source

Melt Production and Volatile Release From Thermochemical Mantle Plumes

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Mantle plumes are thought to generate Large Igneous Provinces (LIPs), the largest outpourings of lava in the geologic record, which are associated with long‐lasting climatic warming events and mass extinctions. However, the controls on mantle degassing by plumes remain poorly constrained.
Qianyi Lu, Maxwell L. Rudolph, Leif Karlstrom   +2 more
wiley   +1 more source

Enhanced Melt Supply Promotes Near‐Symmetric Oceanic Crustal Accretion at the Ultraslow Eastern Gakkel Ridge

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Variations in melt supply can shift slow and ultraslow ridges between magmatic and tectonic accretion modes, but whether this effect persists at Earth's slowest‐spreading ridge remains unclear. The eastern Gakkel Ridge provides a critical test because it spreads at only ∼6–10 mm/yr yet shows anomalously strong magmatism.
Chaojin Huang, Pingchuan Tan, Chunyang Wang, Fei Wang, Weiqi Zhang   +4 more
wiley   +1 more source

Superpiles: The Impact of Mantle Temperature on Large Low Velocity Provinces

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Among the most prevalent features in Earth's deep mantle are the Large Low Velocity Provinces (LLVPs), hypothesized to be hotter and compositionally distinct from the surrounding mantle. LLVPs have previously been viewed as either active superplumes rising through the mantle or passive piles shaped by large scale convection.
Heidi N. Krauss, Allen K. McNamara
wiley   +1 more source

The Rich Chemistry of Ionized Methanol With Sulfur Dioxide: Pathways to Prebiotic and Elusive Species in Earth's Atmosphere and Space

Chemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.
The reaction between the methanol radical cation and sulfur dioxide is remarkably fast and forms several ionic and neutral products (HOSOH+, CH2OSO+, CH2OH+, CH2O, H2O, HSO2). The chemistry goes beyond simple proton or hydrogen transfer, revealing a close interaction between the two species, relevant to atmospheric and astrochemical environments where ...
Mauro Satta, Daniele Catone, Mattea Carmen Castrovilli, Antonella Cartoni   +3 more
wiley   +1 more source

Shallow Poroelastic Hydrothermal Deformation at Changbaishan Volcano Before the 2020 Unrest Revealed by Sentinel‐1 InSAR Time Series

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Ground deformation of dormant volcanoes provides critical insights into subsurface processes and potential hazards. Here we present Sentinel‐1 Interferometric Synthetic Aperture Radar (InSAR) time series (2015–2020) for Changbaishan volcano, the largest intraplate volcanic system in East Asia. We detect persistent subsidence of up to 3.5 mm/yr
Xingjun Luo, Wenbin Xu, Nicolas Oestreicher, Joël Ruch   +3 more
wiley   +1 more source

Volatile Conduits Beneath Vulcano Island (Italy) Revealed by High‐Resolution Nodal Local Earthquake Tomography During Volcanic Unrest

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Understanding shallow magmatic and hydrothermal systems at active volcanoes is essential for interpreting unrest and forecasting eruptions. We present the first high‐resolution three‐dimensional Vp $Vp$, Vs $Vs$, and Vp/Vs $Vp/Vs$ models of Vulcano Island, Aeolian Islands, Italy, derived from a dense nodal seismic network.
Iván Cabrera‐Pérez, Douglas Sami Stumpp, Sofía Castro, Michaïl Henry, Tullio Ricci, Alessandra Sciarra, Matteo Lupi   +6 more
wiley   +1 more source

State of Stress in Subduction Zone Forearcs: Influence of the Mantle Wedge Corner and Serpentinization

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract We investigate the role of the elasticity and density of the forearc mantle wedge corner on the stress distribution in the forearc region of subduction zones, using numerical quasi‐2D lithospheric deformation models for the Cascadia, Nankai, NE Japan, and Costa Rica subduction zones. We incorporate the forearc mantle wedge corner as an elastic
Viven Sharma, Ikuko Wada
wiley   +1 more source

In Situ Observation of Pressure‐Enhanced Hydrous–Anhydrous Solid Solution in Lower‐Mantle SiO2–AlOOH Phases

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Water plays a critical role in Earth's mantle dynamics and evolution, yet lower‐mantle storage mechanisms remain debated. δ‐AlOOH and SiO2 phases have been independently proposed as high‐pressure water hosts. Here, we conducted in situ synchrotron X‐ray diffraction experiments with a multi‐anvil apparatus and sintered diamond anvils to ...
M. Nishi, K. Takahashi, H. Dekura, K. Kawano, H. Koike, K. Nakamura, T. Kondo, H. Kuwahara, S. Kakizawa, N. Tsujino, Y. Higo   +10 more
wiley   +1 more source

Quantifying the Effects of Nickel on Earth’s Inner‐Core Nucleation

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The formation of Earth’s solid inner core marks a major transition in the thermal and chemical evolution of the deep Earth, yet its origin remains paradoxical, as initial nucleation appears to require unrealistically large undercooling in the outer core.
Jiahui Zhai, Liangrui Wei, Chen Gao, Yang Sun   +3 more
wiley   +1 more source