Geosciences, 2021 In the aftermath of pyroclastic density current-dominated eruptions, lahars are the main geomorphic agent, but at the decadal scale, different sets of processes take place in the volcanic sediment cascade.
Christopher Gomez +5 more
doaj +1 more source
Ash aggregate-rich pyroclastic density currents of the 431 CE Tierra Blanca Joven eruption, Ilopango caldera, El Salvador [PDF]
, 2023 The VEI 6, Tierra Blanca Joven pyroclastic sequence (30–90 km3 DRE volume), erupted from Ilopango caldera, El Salvador, in 431 CE, is the product of one of the largest eruptions of the last two millennia.
Brown, Richard J. +13 more
core +1 more source
Dynamic Statistical Models for Pyroclastic Density Current Generation at Soufrière Hills Volcano
Frontiers in Earth Science, 2018 To mitigate volcanic hazards from pyroclastic density currents, volcanologists generate hazard maps that provide long-term forecasts of areas of potential impact. Several recent efforts in the field develop new statistical methods for application of flow
Robert L. Wolpert +2 more
doaj +1 more source
, 2013 This chapter summarizes the principal experimental and theoretical approaches used to investigate the physics of pyroclastic density currents (PDCs), which are gravity driven hot gas–particle mixtures commonly generated during explosive volcanic eruptions.
Roche, Olivier +2 more
openaire +2 more sources
Frontiers in Earth Science, 2020 Effective volcanic hazard management in regions where populations live in close proximity to persistent volcanic activity involves understanding the dynamic nature of hazards, and associated risk.
Elaine T. Spiller +6 more
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Supplemental Material: Long-runout pyroclastic density currents: Analysis and implications
, 2022 Supplemental figures, detailed information on the Great Basin ignimbrites and the paleovalleys, a summary of the database and the characteristics of the pyroclastic density currents, and the statistical model used.
Olivier Roche (7859148), et al. (281964)
core +1 more source
A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
Geophysical Monograph Series, Page 47-54., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
wiley +1 more source
The influence of moisture on pyroclastic density current dynamics and deposits: implications for understanding volcanic stratigraphy [PDF]
Pyroclastic Density Currents (PDCs) are hazardous, multiphase currents of heterogeneous volcanic material and fluid. Moisture can enter a PDC system through internal (e.g., pre-eruptive) or through external processes during transport.
Walding, Nemi
core +6 more sources
Volcanica, 2020 Pyroclastic density currents (PDCs) are a prominent hazard of volcanic activity; however, fully quantitative observations are lacking and little direct evidence exists to constrain the parameters controlling ash production and runout. Here, we use rotary
Adrian Hornby +4 more
doaj +1 more source
Frontiers in Earth Science, 2022 Open conduit volcanoes like Stromboli can display elusive changes in activity before major eruptive events. Starting on December 2020, Stromboli volcano displayed an increasing eruptive activity, that on 19 May 2021 led to a crater-rim collapse, with ...
S. Calvari +43 more
doaj +1 more source