Pyroclasts of the first phases of the explosive-effusive PCCVC volcanic eruption: physicochemical analysis [PDF]
, 2015 The morphology, texture, grain size and other physicochemical characteristics of pyroclastic material from the first phases of the Puyehue-Cordon Caulle volcanic complex (PCCVC) eruption, (Southern Andes, Chile), can be associated to the model recently ...
Barone, Vicente +7 more
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Development of a geological model useful for the study of the natural hazards in urban environments. An example from the eastern sector of Rome (Italy) [PDF]
, 2015 Detailed knowledge of the subsoil setting is an extremely important issue for a correct risk reduction policy, especially when dealing with urban areas hosting cultural heritage, which enhance risk conditions even at low geo-hazard levels, as in the case
Esposito, Carlo +2 more
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Submarine pyroclastic deposits in Tertiary basins, NE Slovenia
Geologija, 2013 In Tertiary basins of NE Slovenia, Upper Oligocene volcanic activity occurred in a submarine environment that experienced contemporaneous clastic sedimentation.
Polona Kralj
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New developments in the analysis of column-collapse pyroclastic density currents through numerical simulations of multiphase flows [PDF]
Solid Earth, 2012 A granular multiphase model has been used to evaluate the action of differently sized particles on the dynamics of fountains and associated pyroclastic density currents.
S. Lepore, C. Scarpati
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Numerical Simulation of Pyroclastic Flow of Karangetang Volcano Based on 2015 Eruption Activity
JGEET: Journal of Geoscience, Engineering, Environment and TechnologyOn May 7-9, 2015 the eruptive activity of Mount Karangetang released pyroclastic flows towards the Batuawang River for 3.6 km and hit Kora kora village which is located south of the Main Crater. This pyroclastic flow originated from lava flows during the
Willi FS Banggur +13 more
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Modeling the Dynamics of Dense Pyroclastic Flows on Venus: Insights Into Pyroclastic Eruptions
Journal of Geophysical Research: Planets, 2021 AbstractOn Venus, relatively young deposits near volcanic and coronal summits with unique radar characteristics have been proposed to be emplaced by pyroclastic density currents (PDCs). The proposed units are laterally extensive, long‐runout deposits showing moderate to high radar backscatter and circular polarization ratio in 12.6 cm wavelength ...
Indujaa Ganesh +2 more
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Modelling of bubble nucleation in trachy-phonolitic magmas: implications for the dynamics of ash-rich eruptions [PDF]
, 2012 Nucleation of water gas bubbles in trachyphonolitic magmatic melts has been investigated integrating theory and numerical modelling with decompression experiments and analysis of natural ash samples of explosive eruptions.
Colucci, Simone
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A review of late Quaternary silicic and some other tephra formations from New Zealand: their stratigraphy, nomenclature, distribution, volume, and age. [PDF]
, 1990 The stratigraphic relationships and distribution of 36 named late Quaternary (≤c. 50 000 yr B P.) silicic tephra formations, erupted from 4 volcanic centres—Okataina, Taupo, Maroa, and Tuhua (Mayor Island)—are presented.
Froggatt, Paul C., Lowe, David J.
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Reconciling pyroclastic flow and surge: the multiphase physics of pyroclastic density currents [PDF]
Earth and Planetary Science Letters, 2002 Two end-member types of pyroclastic density current are commonly recognized: pyroclastic surges are dilute currents in which particles are carried in turbulent suspension and pyroclastic flows are highly concentrated flows. We provide scaling relations that unify these end-members and derive a segregation mechanism into basal concentrated flow and ...
Burgisser, Alain, W. Bergantz, George
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Influences of hydrological and hydrogeological conditions on debris flows in peri-vesuvian hillslopes [PDF]
Natural Hazards and Earth System Sciences, 2002 The paper illustrates some results of research carried out to assess factors triggering debris flows which involve the pyroclastic overburdens covering carbonate mountains around Vesuvius.
P. De Vita, V. Piscopo
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