Results 61 to 70 of about 3,397 (210)

Atmospheric dust is a global nutrient source for plants via foliar uptake

open access: yesNew Phytologist, Volume 250, Issue 5, Page 2867-2883, June 2026.
Summary Atmospheric mineral dust is a critical nutrient supplier to marine ecosystems, but its role in terrestrial plant nutrition remains underexplored due to the assumption that nutrients are acquired solely from soils via roots. Here, we demonstrate that plants directly acquire nutrients from dust through leaves, revealing an unrecognized ...
Anton Lokshin   +5 more
wiley   +1 more source

Last 100 ka tephrostratigraphic record of Mount Etna.

open access: yes, 2004
For thousands of years man has marvelled at the gigantic structure that makes up Mt. Etna, the largest active volcano in Europe, and has lived side by side with the mountain, which despite its intense eruptive activity has always been considered a ...
Del Carlo, Paola   +2 more
core   +1 more source

Anomalously Low 3He/4He and Elevated Heat Flow in the Northern Apennines Explained by Lithospheric Delamination: A Modeling Approach

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract The 3He/4He ratios measured in 12 CO2‐dominated gas seeps from the Tuscany‐Roman Volcanic Provinces in Italy range between 0.07 and ∼1.6 Ra. Helium and δ13CO2 isotope systematics indicate a dominant crustal source with a variable but significantly lower contribution from the mantle.
Jean de la Paix Izerumugaba   +3 more
wiley   +1 more source

A message from the ‘underground forge of the gods’: history and current eruptions at Mt Etna

open access: yes, 2021
Mt Etna has made headlines over the last weeks and months with spectacular eruptions, some of them highly explosive. This type of paroxysmal eruptive behaviour is characteristic of Etna’s activity over the past few decades and so it is no surprise that ...
Rosa A. Corsaro   +17 more
core   +1 more source

Mount Etna: The Anatomy of a Volcano

open access: yesEos, Transactions American Geophysical Union, 1987
First, let me say that one should be prepared to purchase two copies of this book. The office copy will be permanently on loan to colleagues and students, while the home copy will be yours for enjoyment and reference. This immensely informative book by the British Etna study group, led by John Guest of University College London, will, I am sure, be ...
openaire   +1 more source

Seismic Constraints on the 3‐D Magma Conduit System of Mount Etna

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Mount Etna, one of the most active volcanoes in the world, provides an excellent natural laboratory for investigating magma plumbing systems. However, previous models of Etna's volcanic structure have not adequately resolved the distribution of deep magma conduits. In this work, we use seismic tomography to obtain high‐resolution 3‐D images of
Siwen Zhang   +8 more
wiley   +1 more source

Assessing Deposit‐Derived Pyroclastic Flow Hazard at Stromboli (Italy): 1. Reconstruction of the Dynamics of the 11 September 1930 Event

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Stromboli volcano (Italy) is known for its persistent explosive activity punctuated by more energetic explosions called paroxysms. During paroxysms, pyroclastic density currents, triggered by the gravitational instability of hot pyroclastic deposits, can occur.
Augusto Neri   +10 more
wiley   +1 more source

Application of the Wiener filter to magnetic profiling in the volcanic environment of Mt. Etna (Italy)

open access: yesAnnals of Geophysics, 1996
The frequency-domain Wiener filtering was applied to magnetic anomalies in the volcanic area of Mt. Etna. This filter, under suitable conditions (additive noise, linear processing and mean-square error criterion), can furnish an effective tool for ...
C. Del Negro
doaj   +1 more source

Assessing Deposit‐Derived Pyroclastic Flow Hazard at Stromboli (Italy): 2. Probabilistic Invasion Maps

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract This study presents a new method to assess the hazard of deposit‐derived pyroclastic density currents (PDC), a critical threat on volcanic islands and on populated slopes of active volcanoes, considering the exemplary case study of Stromboli (Italy).
Andrea Bevilacqua   +10 more
wiley   +1 more source

The cryptic summit graben of Mt. Etna volcano [PDF]

open access: yesJournal of Volcanology and Geothermal Research, 2019
Previous studies have inferred the likelihood of a summit graben at Mt. Etna, but until now there has been no direct observation or evidence of such a feature. Here, the results of 43 years of deformation measurements at the summit are reported, in which the presence of an actively forming north-south graben 1.5 km wide is evident, with a maximum ...
openaire   +1 more source

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