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FLEXIBLE CONTROL OF DENSITY CURRENT MIGRATION BY USING SLUICE GATE [PDF]
, 2011 Controlling adverse density currents has been an important issue on water quality and ecosystems of brackish water regions. This study proposes to apply sluice gate for flexible control of density current migration in open channels.
赤堀, 良介 +2 more
core +1 more source
Preservation of Isolated Vesicles in Submarine Pumice and Implications for Submarine Slope Stability
Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.Abstract Pumice clasts from submarine eruptions contain abundant isolated vesicles that are completely encased in glass. As erupted clasts cool, gas inside isolated vesicles contracts, leading to low pressures inside those vesicles. Despite low pressures, isolated vesicles can be preserved in submarine pumice deposits to water depths of approximately 1–
M. Manga
wiley +1 more source
Pumice cone eruptions at Aluto volcano, Ethiopia
VolcanicaPumice cones are volcanic landforms that exist worldwide, but whose eruption has never been observed. Interpretations of these eruptions vary significantly in style, intensity, and magnitude, pertinent for volcanic hazard assessment.
Ben Clarke +5 more
doaj +1 more source
The magnitude and impact of the Youngest Toba Tuff super-eruption
Frontiers in Earth Science, 2014 Super-eruptions, orders of magnitude larger than eruptions experienced in historic times, have devastated wide areas by pyroclastic flows, covered continent-size areas by ash fallout, and injected large quantities of aerosols into the stratosphere ...
Antonio eCosta +3 more
doaj +1 more source
Accretionary lapilli evolution remains controversial. Based on field, modelling and rare geochemical studies most workers argue for formation and growth within an eruption plume, although recent studies suggest formation within a pyroclastic density ...
Drake, Simon M., Brown, D., Beard, Andy
core +2 more sources
GeosciencesKrenitsyn Peak is one of the two active volcanoes on Onekotan Island (Greater Kuril Ridge). The inaccessibility of the island, along with the volcano being situated within a sizeable (7 km in diameter) and cold (3.7 °C) caldera lake, has led to minimal ...
Vesta O. Davydova +6 more
doaj +1 more source
, 2006 Substrate deformation by pyroclastic density currents is very sparsely described in the literature. The rare occurrence of syn-depositional substrate deformation suggests that special circumstances are required to transmit shear from the base of a ...
CAS R. A. F. +2 more
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Explaining the origin of deposit-derived pyroclastic density currents
Bulletin of VolcanologyAbstract Pyroclastic density currents (PDCs) generated by the collapse of incandescent volcanic deposits represent a widespread but poorly understood hazard at active volcanoes. Their dynamics remain less constrained than those of dome- or column-collapse PDCs.
Federico Di Traglia +2 more
openaire +1 more source
A Hidden Eruption: The 21 May 2023 Paroxysm of the Etna Volcano (Italy)
Remote SensingOn 21 May 2023, a hidden eruption occurred at the Southeast Crater (SEC) of Etna (Italy); indeed, bad weather prevented its direct and remote observation.
Emanuela De Beni +8 more
doaj +1 more source
Small-Scale Lateral Variations in the Post-Plinian AD 79 Pyroclastic Density Currents Deposits
, 2021 Plinian eruptions form a sequence of pyroclastic fall deposits commonly overlain by ignimbrites. Partial column collapses often form intraplinian pyroclastic density currents (PDCs), and sustained column phases punctuate late, prevalent column collapse ...
Perrotta A. +4 more
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