The fragmentation-induced fluidisation of pyroclastic density currents [PDF]
Nature Communications, 2023 Pyroclastic 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.
Eric C. P. Breard +5 more
doaj +5 more sources
Identifying rheological regimes within pyroclastic density currents [PDF]
Nature CommunicationsPyroclastic density currents (PDCs) are the most lethal of all volcanic hazards. An ongoing challenge is to accurately forecast their run-out distance such that effective mitigation strategies can be implemented.
Thomas. J. Jones +4 more
doaj +4 more sources
Inverting sediment bedforms for evaluating the hazard of dilute pyroclastic density currents in the field [PDF]
Scientific Reports, 2021 Pyroclastic density currents are ground hugging gas-particle flows associated to explosive volcanic eruptions and moving down a volcano's slope, causing devastation and deaths.
Pierfrancesco Dellino +4 more
doaj +2 more sources
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
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 ...
Alain Burgisser, George W Bergantz
exaly +3 more sources
A new hazard scenario at Vesuvius: deadly thermal impact of detached ash cloud surges in 79CE at Herculaneum [PDF]
Scientific Reports, 2023 Diluted pyroclastic density currents are capable to cause huge devastation and mortality around volcanoes, and temperature is a crucial parameter in assessing their lethal power.
Alessandra Pensa +3 more
doaj +2 more sources
Volcano generated tsunami recorded in the near source [PDF]
Nature CommunicationsVolcano sector collapse and pyroclastic density currents are common phenomena on active volcanoes and potentially a fatal source of tsunami waves which constitute a serious hazard for local as well as distant coastal population.
M. Ripepe, G. Lacanna
doaj +2 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
A scenario-based volcanic hazard assessment for the Mount Meager Volcanic Complex, British Columbia [PDF]
Journal of Applied Volcanology, 2022 The Mount Meager Volcanic Complex (Mount Meager) is a glacier-clad stratovolcanic system in southwestern British Columbia which last erupted over 2400 years ago (VEI 4).
Rachel Warwick +3 more
doaj +2 more sources