Results 91 to 100 of about 392,695 (199)

Brine Entrainment During Ice Shell Growth on Icy Worlds

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract The role of ocean composition in governing ice shell growth and ocean longevity on icy satellites remains poorly constrained. To address this, we develop a thermomechanical model of small to mid‐sized icy worlds that simulates ice shell growth from a saline ocean, explicitly quantifying brine entrainment through a parameterization of reactive ...
Nina Gilkyson, Christian Huber, Erica Nathan, Jacob Buffo   +3 more
wiley   +1 more source

Satellite Geodesy Captures Offset Magma Supply Associated With Lava Lake Appearance at Masaya Volcano, Nicaragua

Geophysical Research Letters, 2018
Ascending and descending Interferometric Synthetic Aperture Radar data sets from various satellites (CSK, RSAT‐2, ALOS‐2, and Sentinel‐1) show a maximum of ∼8 cm ground inflation in Masaya caldera over a 10 month period (6 November 2015 to 1 September ...
K. J. Stephens, C. Wauthier
doaj   +1 more source

Deep Seismic Tremors in the 2025 Santorini Seismo‐Volcanic Crisis Highlight Magmatic Feeding From a Mid‐Crustal Reservoir

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract An intense seismic swarm started on 27 January 2025 in the Santorini‐Amorgos region and lasted for approximately 45 days. A widely observed seismic tremor on 14 February 2025 suggested a volcanic origin for the 2025 Santorini crisis. Here we present an in‐depth combined seismological analysis of the earthquakes and tremors that occurred during
Jean Soubestre, Jannes Münchmeyer, Quentin Higueret, Nikolai M. Shapiro, Florent Brenguier, Anthony Lomax   +5 more
wiley   +1 more source

An Inflating Upper Mantle Magma Reservoir Beneath the Tip of the Condor Seamount, Azores Revealed by Rapid‐Response Ocean‐Bottom‐Seismometer Data

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Condor Seamount is among the most seismically active regions on the Azores Plateau. In December 2019, an earthquake crisis occurred at the tip of the seamount, which was strongly felt on nearby islands. Two months after the peak of the crisis, we deployed a local network of five ocean‐bottom seismometers around the seamount, recording ...
Yingchen Liu, Neil Mitchell, Dietrich Lange, Ingo Grevemeyer   +3 more
wiley   +1 more source

Evolution of a silicic magma reservoir in the upper crust [Elektronisk resurs] : Reyðarártindur pluton, Southeast Iceland

, 2022
Field observations of extinct and exposed magma reservoirs shed light on processes operating in the roots of presently active volcanoes. The Reyðarártindur pluton, Southeast Iceland is an example of a fossil shallow magma reservoir that fed eruptions ...
Rhodes, Emma,, Barker, Abigail,, Cruden, Alexander,, Burchardt, Steffi,, Parker, Charles F.,   +4 more
core  

Dense magnetotelluric imaging of the Akan Caldera (Hokkaido, Japan): insights into its magma plumbing system and caldera-forming reservoir

Earth, Planets and Space
To investigate the magma plumbing system beneath the Akan Caldera (Hokkaido, Japan), we conducted broadband magnetotelluric surveys and imaged its three-dimensional resistivity structure to a depth of approximately 30 km.
Tomohiro Inoue, Takeshi Hashimoto, Koki Aizawa, Hiroshi Ichihara, Ryo Tanaka, Yusuke Yamaya   +5 more
doaj   +1 more source

Origin of Long‐Wavelength Variations in Crustal Thickness on Rocky Planets

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Long‐wavelength crustal thickness variations are observed on telluric planets, particularly on Mars and the Moon whereas Mercury appears to lack such variations. They may stem from two early‐stage positive feedback mechanisms that can emerge in stagnant‐lid planets.
Valentin Bonnet Gibet, Chloé Michaut
wiley   +1 more source

The trigger mechanism of low-frequency earthquakes on Montserrat. [PDF]

, 2006
A careful analysis of low-frequency seismic events on Soufrie`ere Hills volcano, Montserrat, points to a source mechanism that is non-destructive, repetitive, and has a stationary source location.
Dingwell, Donald B, Powell, Tanya, Collier, Lindsey, Tuffen, Hugh, Green, David, Neuberg, Juergen W   +5 more
core   +1 more source

Magma Differentiation in Dynamic Mush Domains From the Perspective of Multivariate Statistics: Open‐ Versus Closed‐System Evolution

Geochemistry, Geophysics, Geosystems
Open‐conduit conditions characterize several of the most hazardous and active volcanic systems of basaltic composition worldwide, persistently refilled by magmatic inputs. Eruptive products with similar bulk compositions, chemically buffered by continual
A. Pontesilli, F. Di Fiore, P. Scarlato, B. Ellis, E. Del Bello, D. Andronico, J. Taddeucci, M. Brenna, M. Nazzari, O. Bachmann, S. Mollo   +10 more
doaj   +1 more source

Seismic Exploration for Magmatic Brine Lenses: An Example From Soufrière Hills Volcano, Montserrat

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract The majority of metallic ore deposits are related to processes associated with ancient or modern volcanic systems. Beyond geothermal energy production, volcanoes also represent a potential resource of critical metals, including those required for carbon‐neutral technologies. Geothermal metals occur in subsurface fluid reservoirs fed by surface
Petros Bogiatzis, J.‐Michael Kendall, Jonathan D. Blundy, Graham A. Ryan, Alan F. Baird   +4 more
wiley   +1 more source