Magma fragmentation is the breakup of a continuous volume of molten rock into discrete
pieces, called pyroclasts. Because magma contains bubbles of compressible magmatic …

Tephra transport models try to predict atmospheric dispersion and sedimentation of tephra
depending on meteorology, particle properties, and eruption characteristics, defined by …

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 …

Abstract On 17 June 1996, Ruapehu volcano, New Zealand, produced a sustained andesitic
sub-Plinian eruption, which generated a narrow tephra-fall deposit extending more than 200 …

Accurate measurements of volcanic ash morphology are critical to improving both our
understanding of fragmentation processes and our ability to predict particle behaviour. In …

We model the ascent and eruption of lunar mare basalt magmas with new data on crustal
thickness and density (GRAIL), magma properties, and surface topography, morphology and …

We synthesize field and experimental data to evaluate relationships between the textures
and sizes of pyroclasts and the processes that shape them, with emphasis on the role of …

The vesicularity, permeability, and structure of pumice clasts provide insight into conditions
of vesiculation and fragmentation during Plinian fall and pyroclastic flow-producing phases …

Self-organized criticality (SOC) has become a magic word in various scientific disciplines. In
the first ten years after Per Bak and his coworkers presented their seminal idea (Bak et al …

A multiparticle thermofluid dynamic model was developed to assess the effect of a range of
particle size on the transient two‐dimensional behavior of collapsing columns and …