Permeability controls on expansion and size distributions of pyroclasts
AC Rust, KV Cashman - Journal of Geophysical Research …, 2011 - Wiley Online Library
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 …
and sizes of pyroclasts and the processes that shape them, with emphasis on the role of …
Permeability development in vesiculating magmas: implications for fragmentation
C Klug, KV Cashman - Bulletin of Volcanology, 1996 - Springer
Fragmentation, or the" coming apart" of magma during a plinian eruption, remains one of the
least understood processes in volcanology, although assumptions about the timing and …
least understood processes in volcanology, although assumptions about the timing and …
Coupled effect of magma degassing and rheology on silicic volcanism
Explosive volcanism such as the 1991 Mt. Pinatubo, Philippines, and the 2008 Mt. Chaitén,
Chile, eruptions is caused by violent vesiculation of hydrous magma. However, gas may …
Chile, eruptions is caused by violent vesiculation of hydrous magma. However, gas may …
Permeability during magma expansion and compaction
Plinian lapilli from the 1060 Common Era Glass Mountain rhyolitic eruption of Medicine Lake
Volcano, California, were collected and analyzed for vesicularity and permeability. A subset …
Volcano, California, were collected and analyzed for vesicularity and permeability. A subset …
Kinetics of heterogeneous bubble nucleation in rhyolitic melts: implications for the number density of bubbles in volcanic conduits and for pumice textures
We performed decompression experiments to simulate the ascent of a phenocryst-bearing
rhyolitic magma in a volcanic conduit. The starting materials were bubble-free rhyolites …
rhyolitic magma in a volcanic conduit. The starting materials were bubble-free rhyolites …
On the vesicularity of pumice
We develop a physical framework for the evolution of vesicular magma fragments after their
formation by fragmentation in explosive eruptions. These fragments are carried by a …
formation by fragmentation in explosive eruptions. These fragments are carried by a …
Relating vesicle shapes in pyroclasts to eruption styles
Vesicles in pyroclasts provide a direct record of conduit conditions during explosive volcanic
eruptions. Although their numbers and sizes are used routinely to infer aspects of eruption …
eruptions. Although their numbers and sizes are used routinely to infer aspects of eruption …
Permeability of vesicular silicic magma: inertial and hysteresis effects
AC Rust, KV Cashman - Earth and Planetary Science Letters, 2004 - Elsevier
The permeability of crystal-poor obsidian flow and pumice samples from Medicine Lake
Volcano, USA, are measured to assess (1) the existence of a critical vesicularity (porosity) …
Volcano, USA, are measured to assess (1) the existence of a critical vesicularity (porosity) …
Vesiculation in magmas from Stromboli and implications for normal Strombolian activity and paroxysmal explosions in basaltic systems
We performed a series of X‐ray tomographic experiments and lattice Boltzmann
permeability simulations on pyroclastic products from explosive activity at Stromboli between …
permeability simulations on pyroclastic products from explosive activity at Stromboli between …
The effects of outgassing on the transition between effusive and explosive silicic eruptions
W Degruyter, O Bachmann, A Burgisser… - Earth and Planetary …, 2012 - Elsevier
The eruption style of silicic magmas is affected by the loss of gas (outgassing) during ascent.
We investigate outgassing using a numerical model for one-dimensional, two-phase, steady …
We investigate outgassing using a numerical model for one-dimensional, two-phase, steady …