The impact of pyroclastic density currents duration on humans: the case of the AD 79 eruption of Vesuvius [PDF]
Scientific Reports, 2021 Pyroclastic density currents are ground hugging gas-particle flows that originate from the collapse of an eruption column or lava dome. They move away from the volcano at high speed, causing devastation.
Pierfrancesco Dellino +4 more
doaj +2 more sources
PDCD-DAT – a global database of pyroclastic density current deposit field data [PDF]
Journal of Applied VolcanologyPyroclastic density currents represent one of the deadliest hazards posed by active volcanoes. Analysis of their deposits provides valuable insights into their internal dynamics and informs numerical simulations of pyroclastic density currents which ...
Joshua Brown +11 more
doaj +2 more sources
Assessing minimum pyroclastic density current mass to impact critical infrastructures: example from Aso caldera (Japan) [PDF]
Natural Hazards and Earth System Sciences, 2022 We describe a method for calculating the probability that a distal geographic location is impacted by a pyroclastic density current (PDC) of a given size, considering the key related uncertainties. Specifically, we evaluate the minimum volume and mass of
A. Bevilacqua +8 more
doaj +3 more sources
Syn-eruptive, soft-sediment deformation of deposits from dilute pyroclastic density current: triggers from granular shear, dynamic pore pressure, ballistic impacts and shock waves [PDF]
Solid Earth, 2015 Soft-sediment deformation structures can provide valuable information about the conditions of parent flows, the sediment state and the surrounding environment. Here, examples of soft-sediment deformation in deposits of dilute pyroclastic density currents
G. A. Douillet +5 more
doaj +4 more sources
Permian Large Igneous Provinces and Their Paleoenvironmental Effects
Geophysical Monograph Series, Page 417-434., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jun Chen, Yi‐Gang Xu
wiley +7 more sources
Analogue modelling of pyroclastic density current deposition [PDF]
, 2010 A series of analogue flume experiments are used to investigate initiation, flow and deposition of static piles of polymict materials, the sorting during transport, and the three dimensional geometry of the resulting deposits. Sequential charges are used to investigate the effects and extent of reworking.
Kokelaar, Peter +3 more
core +10 more sources
Turbulent particle-gas feedback exacerbates the hazard impacts of pyroclastic density currents
Communications Earth & EnvironmentCausing one-third of all volcanic fatalities, pyroclastic density currents create destruction far beyond our current scientific explanation. Opportunities to interrogate the mechanisms behind this hazard have long been desired, but pyroclastic density ...
Daniel H. Uhle +9 more
doaj +2 more sources
The fragmentation-induced fluidisation of pyroclastic density currents [PDF]
Nature Communications, 2023 AbstractPyroclastic density currents (PDCs) are the most lethal volcanic process on Earth. Forecasting their inundation area is essential to mitigate their risk, but existing models are limited by our poor understanding of their dynamics. Here, we explore the role of evolving grain-size distribution in controlling the runout of the most common PDCs ...
Eric C. P. Breard +5 more
openaire +3 more sources
Petroleum Exploration and Development, 2023 The conventional lithofacies and facies model of subaerial and marine pyroclastic rocks cannot reflect the characteristics of subaqueous volcanic edifice in lacustrine basins.
Xuanlong SHAN +7 more
doaj +1 more source
Reproducing pyroclastic density current deposits of the 79 CE eruption of the Somma–Vesuvius volcano using the box-model approach [PDF]
Solid Earth, 2021 We use PyBox, a new numerical implementation of the box-model approach, to reproduce pyroclastic density current (PDC) deposits from the Somma–Vesuvius volcano (Italy).
A. Tadini +9 more
doaj +1 more source