One of the biggest challenges in volcanic hazard assessment is to understand how and why
eruptive style changes within the same eruptive period or even from one eruption to the next …

Volcanoes are unstable structures that deform laterally and frequently experience mass
wasting events. Hydrothermal alteration is often invoked as a mechanism that contributes …

The occurrence and the style of volcanic eruptions are largely controlled by the ways in
which magma is stored and transported from the mantle to the surface through the crust …

Dome-forming volcanoes are among the most hazardous volcanoes on Earth. Magmatic
outgassing can be hindered if the permeability of a lava dome is reduced, promoting pore …

The failure mode of lava—dilatant or compactant—depends on the physical attributes of the
lava, primarily the porosity and pore size, and the conditions under which it deforms. The …

The ease at which exsolving volatiles can migrate though magma and outgas influences the
explosivity of a volcanic eruption. Volcanic rocks often contain discrete discontinuities …

Cristobalite is a common mineral in volcanic ash produced from dome-forming eruptions.
Assessment of the respiratory hazard posed by volcanic ash requires understanding the …

Low permeability dome rocks may contribute to conduit overpressure development in
volcanic systems, indirectly abetting explosive activity. The permeability of dome-forming …

Silicic volcanic eruptions range in style from gently effusive to highly explosive, and may
switch style unpredictably during a single eruption. Direct observations of subaerial rhyolitic …

Tuffisites are veins of variably sintered, pyroclastic particles that form in conduits and lava
domes as a result of localized fragmentation events during gas-and-ash explosions. Those …