Results 71 to 80 of about 865,890 (160)

A Geophysical Crustal Model of Central Italy for Geoneutrino Predictions in Borexino

open access: yesEarth and Space Science, Volume 13, Issue 11, November 2026.
Abstract Predicting the geoneutrino signal at underground detectors requires a local crustal reference whose precision matches the experimental uncertainty. The current Borexino reference is 15 years old and deterministic. We replace it with GUESS, a probabilistic 3‐D model of the Gran Sasso region, built by Bayesian inversion of multi‐source ...
L. Rossi   +21 more
wiley   +1 more source

An Experimental Study of Particle‐Laden Jet Noise as an Analogue to Tephra‐Laden Volcanic Eruptions

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 11, November 2026.
Abstract Explosive volcanic eruptions produce vast amounts of acoustic energy, generally in the infrasound range. For sustained eruptions, infrasound is often dominated by jet noise, a form of noise similar to the sound from human‐made jet engines. Jet noise largely results from the combination of two sound‐producing components: fine‐scale turbulence ...
Gilles Seropian   +5 more
wiley   +1 more source

Submarine pyroclastic flows of the 1883 eruption of Krakatau volcano

open access: yes, 1991
The recent collection of samples from the seafloor surrounding Krakatau volcano provides new insights into the explosive 1883 eruption and the generation of tsunamis that claimed the lives of \u3e32 000 people.
Mandeville, C.   +2 more
core   +1 more source

Improving the facies model for syn-eruptive fluvial successions: lessons from the Chaitén volcano and Blanco river, Chile.

open access: yesLatin American Journal of Sedimentology and Basin Analysis, 2022
Typically, the stratigraphic record of syn-eruptive fluvial successions is a pyroclastic-rich one. It includes an alternation of braided channel deposits and sheet-like floodplain strata, in which the occurrence of paleosols with in situ trees and ...
Aldo Martín Umazano   +4 more
doaj   +2 more sources

Radon concentration anomalies as possible precursors to pyroclastic flow events of Arenal volcano [PDF]

open access: yesGeofísica Internacional, 2002
Radon measurements were made at five stations located on Arenal volcano’s cone, Costa Rica, using LR-115 detectors. The radon measuring stations were located on the active cone and one station was located directly over a hotspring. Radon flux anomalies
E. Malavassi   +3 more
doaj  

A comprehensive paleomagnetic study from the last Plinian eruptions of Popocatepetl volcano: absolute chronology of lavas and estimation of emplacement temperatures of PDCs

open access: yesEarth, Planets and Space, 2019
Three lava flows (Buenavista, Xalitzintla and Nealtican) and pyroclastic density currents (Lorenzo and Pink Pumice) from two Popocatepetl Plinian eruptions were sampled for paleomagnetic dating.
Nayeli Pérez-Rodríguez   +3 more
doaj   +1 more source

Pyroclastic Density Current Hazard Assessment and Modeling Uncertainties for Fuego Volcano, Guatemala

open access: yesRemote Sensing, 2020
On 3 June 2018, Fuego volcano experienced a VEI = 3 eruption, which produced a pyroclastic density current (PDC) that devastated the La Réunion resort and the community of Los Lotes, resulting in over 100 deaths.
Ian T. W. Flynn, Michael S. Ramsey
doaj   +1 more source

Photometric Characterization of the Moon's Silicic Sites: Insights Into the Origin of Silica‐Rich Magmas

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract Lunar “red spots” have been inferred to be regions of extrusive silicic volcanism based on the analysis of remote sensing observations that suggest SiO2 ${\mathrm{S}\mathrm{i}\mathrm{O}}_{2}$‐rich, FeO‐poor composition and morphologies similar to terrestrial silicic domes.
S. R. Burnette   +5 more
wiley   +1 more source

TITAN2D Simulations of Pyroclastic Flows from Small Scale Eruption at Mt. Baekdusan

open access: yes, 2013
Many eruptions of Mt. Baekdusan volcano have been recorded in the historical literatures, and there were unrest precursors in 2002. Based on the geological survey results, it has been recognized that Mt. Baekdusan’s Plinian eruptions had caused ashfall,
Chang, C.   +9 more
core   +1 more source

Sulfidation Reaction Mechanisms of Olivine and Diopside at Mercury's Reducing Conditions

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract The surface of Mercury contains elevated amounts of sulfur of up to 4 wt.%. Volcanic degassing of S from the interior of the planet could have initiated sulfidation reactions between the degassed S and surface materials in the planet's past, leading to the observed surface S enrichment.
Rody C. Erftemeijer   +2 more
wiley   +1 more source

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