Results 161 to 170 of about 6,988 (237)
Journal of Quaternary Science, Volume 41, Issue 6, Page 972-986, August 2026.ABSTRACT The Aso‐3 tephra is one of the most significant widespread marker layers from the Middle to Late Pleistocene, generated by a large caldera‐forming eruption at the Aso volcano in Kyushu, southwestern Japan. Despite its importance, a distal co‐ignimbrite ash correlative has yet to be clearly identified, primarily because although volcanic glass ...
Toshinori Sasaki +6 more
wiley +1 more source
Tracing Continental Basalt Sources and Mantle Processes Using Fe Stable Isotopes
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.Abstract Iron (Fe) isotopes have emerged as powerful tracers of mantle source heterogeneity and melting processes, yet the mechanisms producing heavy Fe isotope signatures (high δ57Fe values) in intraplate basalts remain debated. Competing interpretations include partial melting of recycled pyroxenite domains versus carbonate‐induced oxidation of a ...
Yi‐Shan Cheng +10 more
wiley +1 more source
Vanadium Isotopic Compositions of the High‐3He/4He Baffin Island Lavas
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.Abstract The isotopic composition of vanadium (V) in hotspot lavas provides new insight into the source of deep mantle heterogeneities. We measured V isotopic compositions in Paleogene Baffin Island lavas, which erupted above the Iceland plume head, to constrain the mantle plume source. These lavas have V isotopic compositions that are lighter (−0.96 ±
Jonas Kaare‐Rasmussen +4 more
wiley +1 more source
Pressurization of Shallow Magma Reservoir Preceding Basaltic Eruptions at an Open‐Vent Volcano
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract Open‐vent volcanoes are characterized by the persistent activity of outgassing, lava effusion and mild explosions, which is, however, occasionally interrupted by more violent explosive activity (paroxysm), for example, Stromboli (Italy). In spite of the different (two orders of magnitude) explosive intensities and different petrological magma ...
A. Ishikawa +8 more
wiley +1 more source
New 2010 Maule Aftershock Catalog Reveals Structure of the Deep Subduction Interface
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract On 27 February 2010, a Mw 8.8 earthquake occurred near Maule in south‐central Chile. The subsequent rapid deployment of a dense network of seismic stations on land was able to capture the first year of its aftershock sequence. Here, we revisit this data set using picking Artificial Intelligence tools, a 3D velocity model of the region and ...
C. Chalumeau, A. Rietbrock
wiley +1 more source
Rapid laccolith intrusion driven by explosive volcanic eruption. [PDF]
Nat Commun, 2016 Castro JM +5 more
europepmc +1 more source
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract Caldera systems commonly experience inner resurgence, which shapes patterns of volcanic activity. However, incomplete reconstructions of past ground deformation can lead to incorrect recognition of precursory signals. The Campi Flegrei caldera (Italy) provides an exceptional opportunity to address this issue as uplifted marine sediments ...
Jacopo Natale, Stefano Vitale
wiley +1 more source
Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.Abstract Wrinkle ridges are widespread compressional tectonic features on Mars and are important records of the planet's global contractional history. However, their formation, evolution and subsequent modification by other geologic processes remain poorly constrained.
Jianfei Liu, Lu Pan
wiley +1 more source
The Role of Magmatic Styles in Planetary Thermal Evolution Models
Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.Abstract Previous studies that investigated the effects of magmatism on the interior dynamics, in particular for Earth‐sized planets, suggest that magmatism leads to more efficient mantle cooling. However, the extent to which different magmatic styles influence the thermal evolution of planets, and in particular smaller rocky bodies, has not yet been ...
C. Herrera +3 more
wiley +1 more source