Results 171 to 180 of about 18,698 (267)

Mapping Subsea Permafrost Distribution in the Canadian Beaufort Sea With Marine Seismic and Deep Learning

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Subsea permafrost is widespread across the polar continental shelf, and mapping its distribution is crucial for assessing the possible impact of its degradation in response to global warming. While seismic techniques have been useful in determining the lateral extent of subsea permafrost in the Canadian Beaufort Sea, are limited when it comes ...
Jefferson Bustamante, Gabriel Fabien‐Ouellet, Mathieu J. Duchesne   +2 more
wiley   +1 more source

Structure-Dependent Formation of HFC-125a/CO₂ Mixed Hydrates: Raman Evidence and Implications for Fire Suppression. [PDF]

Chem Bio Eng
Burla SK, Seo SD, Lee JD.
europepmc   +1 more source

Thermodynamic Constraints on H2 Production and Habitability From Mg‐Rich Serpentinites as Mars Analogs

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Serpentinization produces hydrogen and methane through abiotic water‐rock interactions, potentially supporting chemotrophic life in planetary subsurface environments. Serpentine deposits in the Martian Noachian landscapes of Nili Fossae and the Southern Highlands have been considered as potential paleo‐habitable zones. However, the geochemical
Devan M. Nisson, Mohit Melwani Daswani, Emmy B. Hughes, Scott M. Perl, Varsha M. Nair, H. M. T. G. A. Pitawala, Sanjeewa P. K. Malaviarachchi, P. L. Dharmapriya, Meththika Vithanage, Amit Basu Sarbadhikai, Francis Rivera‐Hernández, Suniti Karunatillake   +11 more
wiley   +1 more source

Spatial and Temporal Variability of Eastern Pacific Radiocarbon and Carbon Chemistry From the Ice Age to Today

Paleoceanography and Paleoclimatology, Volume 41, Issue 5, May 2026.
Abstract Proxy records of seawater radiocarbon (14C/C) provide strong constraints on how changes in ocean ventilation contributed to the increase in atmospheric CO2 during the termination of the last ice age (≈18,000‐to‐12,000 years ago). One outstanding problem, however, is the existence of anomalously low deglacial benthic foraminiferal 14C/C in the ...
Patrick A. Rafter, Mathis P. Hain, Elsa Arellano‐Torres, Kaustubh Thirumalai, Eric J. Tappa, Maria L. Machain‐Castillo, Martin Soto‐Jimenez, Tim DeVries, Ingrid L. Hendy, Juan C. Herguera, William R. Gray, Ryan A. Green, Frank Pavia, James W. B. Rae, John R. Southon   +14 more
wiley   +1 more source

Deep-sea gas hydrate mounds and chemosynthetic fauna discovered at 3640 m on the Molloy Ridge, Greenland Sea. [PDF]

Nat Commun
Panieri G, Copley JT, Linse K, Nye V, Ramirez-Llodra E, Argentino C, Ferré B, Arctic Deep - Extreme24 consortium, Rogers AD.   +8 more
europepmc   +1 more source

Gas Permeability of Frozen Sediments: Implications for Modeling Gas and Water Transport in Permafrost

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract We measure the gas permeability of two permafrost sediments at a range of ice saturations and use van Genuchten‐Mualem equations to model the relative gas (krg) and water (krw) permeabilities of frozen sediments. We show that our frozen sediment krg data and model display the same functional form as frozen and unfrozen sediment krg data from ...
N. Tanner Mills, Peter B. Flemings, Kehua You, David DiCarlo, Louise M. Farquharson, David Fukuyama   +5 more
wiley   +1 more source

Thermophysical and Rheological Characteristics of CO₂ Hydrate Slurries for Cold Thermal Energy Storage Applications and Engineering Perspectives. [PDF]

Materials (Basel)
Annavajjala SB, Van Dam N, Kosny J.
europepmc   +1 more source

Consolidated‐Undrained Shear Behavior of Diatomaceous Mudstones: Implications for Submarine Landslides

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Submarine landslides occur globally and have the potential to damage seafloor infrastructure and trigger tsunamis. Recently, diatomaceous weak layers have been hypothesized to play a role in triggering submarine landslides on passive continental margins by generating overpressure.
Wyatt Scott, Julia S. Reece
wiley   +1 more source

Molecular Dynamics Simulation Study of Polyvinylpyrrolidone as a Kinetic Inhibitor for Natural Gas Hydrates under Ultradeepwater Conditions. [PDF]

ACS Omega
He Z, Guan J, Wang J, Xu H.
europepmc   +1 more source

Unsupervised Classification of Local Clathrate Hydrate Structures. [PDF]

J Phys Chem C Nanomater Interfaces
Cai X, Striolo A, Salvalaglio M.
europepmc   +1 more source