Results 91 to 100 of about 23,662 (266)

Mountain Degradation Mechanisms on Io Based on Geologic Mapping of the Cocytus Montes Region From JunoCam Imagery

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Periodic high‐resolution imagery of Io is essential for understanding its surface evolution, from volcanic eruptions to tectonic deformation to large‐scale mass wasting. Juno flybys in 2023 and 2024 obtained imagery of the surface with the JunoCam imager at 1.8 km/pixel spatial resolution, comparable to global observations from the Galileo ...
C. H. Seeger   +5 more
wiley   +1 more source

GEODYNAMICS AS WAVE DYNAMICS OF THE MEDIUM COMPOSED OF ROTATING BLOCKS

open access: yesГеодинамика и тектонофизика, 2015
The geomedium block concept envisages that stresses in the medium composed of rotating blocks have torque and thus predetermine the medium's energy capacity (in terms of [Ponomarev, 2008]).
Alexander V. Vikulin
doaj   +1 more source

Synchronized Eruptions on Io: Possible Evidence of Interconnected Subsurface Magma Reservoirs

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract On 27 December 2024, Juno's JIRAM (Jovian InfraRed Auroral Mapper) instrument observed an unprecedented volcanic event in Io's southern hemisphere, covering a vast region of ∼65,000 km2, near 73°S, 140°E. Within the imaged region, only one hot spot was previously known (Pfd454).
A. Mura   +19 more
wiley   +1 more source

Formation of Asteroid (16) Psyche by a Giant Impact

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Asteroid (16) Psyche is the largest likely metal‐rich asteroid in the Solar System and the target of the NASA Psyche mission. The mission aims to determine whether the asteroid is the core of a differentiated planetesimal that lost its mantle via a giant impact.
Saverio Cambioni   +14 more
wiley   +1 more source

An upper-crust lid over the Long Valley magma chamber. [PDF]

open access: yesSci Adv, 2023
Biondi E   +4 more
europepmc   +1 more source

dMODELS. A free software package to model volcanic deformation [PDF]

open access: yes, 2018
Shallow magma accumulation in the crust often results in slight movements of the ground surface that can be measured using standard land-surveying techniques or satellite geodesy.
Battaglia, Maurizio
core  

Occurrence and characterization of nanosulfide‐rich regions on asteroid Ryugu: Insights from mackinawite and pyrrhotite

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 1, Page 168-181, January 2026.
Abstract Samples returned from asteroid Ryugu by the Hayabusa2 mission are dominated by fine‐grained matrix material made of phyllosilicates and nanosulfides. Here, we report the mineralogical, textural, and chemical characteristics of nanosulfide‐rich regions identified in Ryugu particles.
Roberto Conconi   +9 more
wiley   +1 more source

Electromagnetic expression of axial magma chambers

open access: yesGeophysical Research Letters, 1989
The electrical conductivity of sea floor materials is a strong function of porosity, pore geometry, fluid content, temperature and percentage of partial melt. These material properties are particularly volatile near the midocean ridge. Tracking electromagnetic eddy currents generated on the sea floor as they diffuse across the ridge can provide images ...
M. E. Everett, R. N. Edwards
openaire   +1 more source

Logarithmic Growth of Dikes From a Depressurizing Magma Chamber

open access: yesGeophysical Research Letters, 2020
Dike propagation is an intrinsically multiphase problem, where deformation and fluid flow are intricately coupled in a fracture process. Here we perform the first fully coupled simulations of dike propagation in two dimensions, accounting for ...
Benjamin E. Grossman‐Ponemon   +3 more
doaj   +1 more source

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