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Volcanology is the study of the generation and movement of molten rock on Earth and other planetary bodies, primarily through volcanoes and volcanic eruptions. This encompasses the generation of magma, its geochemistry and movement through the Earth’s crust, the physics of volcanic eruptions and hazards including ash clouds and pyroclastic flows
Jones et al., use a laboratory apparatus to perform rheological measurements on real gas-pyroclast mixtures to uncover the flow properties of pyroclastic density currents, a lethal volcanic hazard.
The caldera of Campi Flegrei volcano shows space-dependent rheological behaviour due to the interplay between overpressure sources and geological structures, according to 3D tomography of b-values and correlation with subsurface structures.
Three previously undocumented tsunamis on the East coast of Korea are revealed by biological signatures in bacterial taxa that are associated with submarine volcanism, suggesting these biomarkers can be used as a proxy to understand past tsunamis caused by volcanic activity.
This study shows that magma rising from deep in the Earth’s mantle is not a continuous process but occurs in episodes. This is observed in East Africa with simultaneously replenishing of four magma pockets.
Submersible observations find that chemosymbiotic foundation fauna around hydrothermal vents near the 2022 Hunga eruption were decimated by rapid ash deposition, while populations of heterotrophs were more resilient.
Experiments and numerical modelling of dilute pyroclastic currents reveal an internal amplification of the dynamic pressure, which suggests that flow-building interactions are stronger when multiphase flow dynamics are accounted for.
What every biologist should know about electronics, plus a disturbing outbreak of volcanism in North Carolina, in the weekly dip into Nature’s archive.
Volcanism after large, caldera-forming eruptions is thought to be muted. Exploration of the partially submerged caldera of Santorini reveals that large explosive eruptions have occurred since the caldera formed.
An expedition that drilled into the sea floor near the famous Greek island found signs of a gargantuan blast 520,000 years ago and more recent eruptions.