Results 1 to 10 of about 16,412 (215)

Slow-moving and far-travelled dense pyroclastic flows during the Peach Spring super-eruption [PDF]

Nature Communications, 2016
Pyroclastic flows of the 18.8 Ma Peach Spring Tuff super-eruption travelled >170 km and entrained substrate blocks up to ∼1 m diameter. Here, the authors show that these flows had a dense base and speeds of ∼5-20 m s−1, fed by an eruption discharging ...
O. Roche, D. C. Buesch, G. A. Valentine
doaj   +2 more sources

Simulation of tsunamis induced by volcanic activity in the Gulf of Naples (Italy) [PDF]

Natural Hazards and Earth System Sciences, 2003
The paper explores the potential of tsunami generation by pyroclastic flows travelling down the flank of the volcano Vesuvius that is found south of Naples in Italy.
S. Tinti, G. Pagnoni, A. Piatanesi
doaj   +3 more sources

IMEX_SfloW2D v2: a depth-averaged numerical flow model for volcanic gas–particle flows over complex topographies and water [PDF]

Geoscientific Model Development, 2023
We present developments to the physical model and the open-source numerical code IMEX_SfloW2D (de' Michieli Vitturi et al., 2019). These developments consist of a generalization of the depth-averaged (shallow-water) fluid equations to describe a ...
M. de' Michieli Vitturi, T. Esposti Ongaro, S. Engwell   +2 more
doaj   +1 more source

Forensic Profiling Analogue Approach for the Investigation of Natural Hazards – A Case Study from Onokoba Elementary School, Unzen Volcano, Japan

Forum Geografi, 2021
Internal temperature variations of pyroclastic flows and their deposits are arguably the most challenging data to acquire. As a preliminary study of the temperature variation inside pyroclastic flows, the remains of Onokoba Elementary School (Shimabara ...
Balázs Bradák, Christopher Gomez, Yoshinori Shinohara, Norifumi Hotta   +3 more
doaj   +1 more source

Impact of volcanism on the sedimentary record of the Neuquén rift basin, Argentina: towards a cause and effect model [PDF]

, 2018
The analysis of volcano-sedimentary infill in sedimentary basins constitutes a challenge for basin analysis and hydrocarbon exploration worldwide. In order to understand the contribution of volcanism to the sedimentary record in rift basins, we study the
Abebe, Acocella, Acocella, Acocella, Aguirre-Díaz, Allan, Allen, Backert, Bahk, Baker, Baker, Bernard, Bilmes, Blair, Blair, Blair, Bosworth, Brantley, Brown, Busby, Cabrera, Caineng, Cas, Chambefort, Chorowicz, Clavero, Cole, Corvec, Costa, Coussot, Cristallini, D'Elia, D'Elia, D'Elia, D'Elia, Damborenea, Davidson, Downs, Dupraz, Ebinger, Ebinger, Ebinger, Feng, Ferguson, Fisher, Fisher, Fisher, Franzese, Franzese, Franzese, Gawthorpe, Glicken, Goodbred, Gravley, Groeber, Gudmundsson, Hackett, Haughton, Hayes, Hinterwimmer, Howell, Karátson, Lara, Leanza, Leeder, Leeder, Legarreta, Legarreta, Lenhardt, Lipman, Lipman, Manville, Martina, Martí, Mathisen, McPherson, McPhie, Moore, Moore, Morel, Morley, Muravchik, Muravchik, Nemec, Nishikia, Németh, Németh, Németh, Orton, Palmer, Palmer, Palmer, Paredes, Parfitt, Petterson, Pierson, Postma, Postma, Pángaro, Pángaro, Ramos, Ramos, Ravnås, Reading, Reading, Riding, Riggs, Rowland, Rowland, Schiuma, Schlische, Schlische, Schlische, Schneider, Scott, Scott, Shultz, Siebert, Skilling, Smith, Smith, Smith, Smith, Smith, Spalletti, Spinks, Sruoga, Sruoga, Stipanicic, Stipanicic, Talbot, Thouret, Tucker, Ui, Uliana, Umazano, Van Wyk De Vries, Varela, Vergani, Vergani, Vessell, Walker, White, White, Wilson, Wolfenden, Wolfenden, Wooller, Wyk de Vries, Zanchetta, Ziegler   +150 more
core   +2 more sources

Analysis of the Pyroclastic Flow Deposits of Mount Sinabung and Merapi Using Landsat Imagery and the Artificial Neural Networks Approach

Applied Sciences, 2017
Volcanic eruptions cause pyroclastic flows, which can destroy plantations and settlements. We used image data from Landsat 7 Bands 7, 4 and 2 and Landsat 8 Bands 7, 5 and 3 to observe and analyze the distribution of pyroclastic flow deposits for two ...
Prima Riza Kadavi, Won-Jin Lee, Chang-Wook Lee   +2 more
doaj   +1 more source

Relation between dry granular flow regimes and morphology of deposits: formation of levees in pyroclastic deposits [PDF]

, 2004
Experiments on dry granular matter flowing down an inclined plane are performed in order to study the dynamics of dense pyroclastic flows. The plane is rough, and always wider than the flow, focusing this study on the case of laterally unconfined (free ...
Felix, Gwenaelle, Thomas, Nathalie
core   +5 more sources

Application of an Inertia Dependent Flow Friction Model to Snow Avalanches: Exploration of the Model Using a Ping-Pong Ball Experiment

Geosciences, 2020
Snow avalanches are catastrophic phenomena because of their destructive power. Therefore, it is very important to forecast the affected area of snow avalanches using numerical simulations.
Kae Tsunematsu, Fukashi Maeno, Kouichi Nishimura   +2 more
doaj   +1 more source

High level sill and dyke intrusions initiated from rapidly buried mafic lava flows in scoria cones of Tongoa, Vanuatu (New Hebrides), South Pacific [PDF]

, 2006
Scoria cones are generally considered to grow rapidly in days to weeks or months. During their growth lava flows may be fed onto the cone surface from lava-lake breaches, or form by coalescence of spatter; such flows are preserved interbedded with scoria
Nemeth, Karoly, White, James D. L.
core   +2 more sources

Fluid Outflows From Venus Impact Craters: Analysis From Magellan Data [PDF]

, 1992
Many impact craters on Venus have unusual outflow features originating in or under the continuous ejecta blankets and continuing downhill into the surrounding terrain. These features clearly resulted from flow of low-viscosity fluids, but the identity of
Asimow, Paul D., Wood, John A.
core   +1 more source