Classification of ignimbrites and their eruptions
G Giordano, RAF Cas - Earth-Science Reviews, 2021 - Elsevier
The term “ignimbrite” probably encompasses the one of the largest ranges of deposit types
on Earth, associated with the partial to total collapse of explosive eruption columns feeding …
on Earth, associated with the partial to total collapse of explosive eruption columns feeding …
Advances in our understanding of pyroclastic current behavior from the 1980 eruption sequence of Mount St. Helens volcano (Washington), USA
This review summarizes what the volcanology community has learned thus far from studying
the deposits of pyroclastic currents (PCs) from the 1980 eruption sequence at Mount St …
the deposits of pyroclastic currents (PCs) from the 1980 eruption sequence at Mount St …
Large-magnitude (VEI≥ 7)'wet'explosive silicic eruption preserved a Lower Miocene habitat at the Ipolytarnóc Fossil Site, North Hungary
D Karátson, T Biró, M Portnyagin, B Kiss… - Scientific Reports, 2022 - nature.com
During Earth's history, geosphere-biosphere interactions were often determined by
momentary, catastrophic changes such as large explosive volcanic eruptions. The Miocene …
momentary, catastrophic changes such as large explosive volcanic eruptions. The Miocene …
Reconstructing pyroclastic currents' source and flow parameters from deposit characteristics and numerical modeling: The Pozzolane Rosse ignimbrite case study …
L Calabrò, T Esposti Ongaro… - Journal of …, 2022 - Wiley Online Library
In this study, we apply a two‐dimensional, transient depth‐averaged model to simulate the
inertial flow dynamics of caldera‐forming pyroclastic currents, using the available data about …
inertial flow dynamics of caldera‐forming pyroclastic currents, using the available data about …
Dynamics and Deposits of Pyroclastic Density Currents in Magmatic and Phreatomagmatic Eruptions Revealed by a Two‐Layer Depth‐Averaged Model
HA Shimizu, T Koyaguchi… - Geophysical Research …, 2023 - Wiley Online Library
A pyroclastic density current (PDC) is characterized by its strong stratification of particle
concentration; it consists of upper dilute and lower dense currents, which generally control …
concentration; it consists of upper dilute and lower dense currents, which generally control …
The footprint of column collapse regimes on pyroclastic flow temperatures and plume heights
The gravitational collapse of eruption columns generates ground-hugging pyroclastic
density currents (PDCs) with highly variable temperatures, high enough to be a threat for …
density currents (PDCs) with highly variable temperatures, high enough to be a threat for …
Deposit‐derived block‐and‐ash flows: the hazard posed by perched temporary tephra accumulations on volcanoes; 2018 Fuego Disaster, Guatemala
G Risica, M Rosi, M Pistolesi… - Journal of …, 2022 - Wiley Online Library
The impact of hazardous pyroclastic density currents (PDCs) increases with runout distance,
which is strongly influenced by the mass flux. This article shows that the mass flux of a PDC …
which is strongly influenced by the mass flux. This article shows that the mass flux of a PDC …
A bedform phase diagram for dense granular currents
Pyroclastic density currents (PDCs) are a life-threatening volcanic hazard. Our
understanding and hazard assessments of these flows rely on interpretations of their …
understanding and hazard assessments of these flows rely on interpretations of their …
Pulsating flow dynamics of sustained, forced pyroclastic density currents: insights from a facies analysis of the Campo de la Piedra Pómez ignimbrite, southern Puna …
W Báez, S de Silva, A Chiodi, E Bustos… - Bulletin of …, 2020 - Springer
Abstract The Quaternary Campo de la Piedra Pomez ignimbrite (CPPI) is a superbly
exposed, partially indurated, rhyolitic ignimbrite emplaced on the southern Puna of …
exposed, partially indurated, rhyolitic ignimbrite emplaced on the southern Puna of …
Thermal transient PDC behavior induced by topographic drops: A test case at Mt. St. Helens, USA
Topography plays an important yet uncertain role in modulating the temporal and spatial
evolution of the internal structure of pyroclastic density currents (PDCs). Understanding such …
evolution of the internal structure of pyroclastic density currents (PDCs). Understanding such …