One of the most intriguing and (from the point of view of modeling) poorly understood
aspects of geomaterial mechanics is strain localization. Strain localization is a common …

Volcanic provinces host rocks and magmas subjected to a wide spectrum of conditions from
the occurrence of magmatic, volcanic, structural, tectonic, and hydrothermal activity. The …

The rheology of volatile-bearing crystal mushes was constrained by deformation
experiments on hydrous (2.52 wt.% H2O) haplogranitic magmas containing quartz crystals …

Magmas vesiculate during ascent, producing complex interconnected pore networks, which
can act as outgassing pathways and then deflate or compact to volcanic plugs. Similarly, in …

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 …

The development of gas permeability in magmas is a complex phenomenon that directly
influences the style of a volcanic eruption. The emergence of permeability is linked to the …

The timescale of degassing and outgassing in hydrous rhyolitic melts is investigated in a
wide range of conditions by means of decompression experiments. The evolution of …

In crystal-rich magma, gas bubble formation causes magma lubrication by loosening the
connected crystal framework. In contrast, if the crystal framework behaves as rigid, the gas …

Obsidian flow emplacement is a complex and understudied aspect of silicic volcanism. Of
particular importance is the question of how highly viscous magma can lose sufficient gas in …

The porosity at which a magma becomes permeable (ie, the percolation threshold; ϕc) is
important for magma degassing; it is also poorly constrained in crystal‐bearing systems. To …