Silicate melts are complicated in structure and composition. Hence, diffusion in a melt (in this
chapter, a melt includes both liquid and glass) can be very complicated due to the presence …

Knowledge about the properties of silicate melts is needed by volcanologists and
petrologists to evaluate the dynamics of volcanic eruptions and magmatic processes. These …

The explosivity of volcanic eruptions is governed in part by the rate at which magma
ascends and degasses. Because the time scales of eruptive processes can be exceptionally …

Diffusion results from random motion of particles and entities. Diffusion in melts and magmas
is due to thermally excited random motion of atoms, ions, and clusters, and plays a critical …

Brittle fragmentation, generating small pyroclasts from magma, is a key process determining
eruptive style. How low-viscosity magma fragments within a rising fountain in a brittle …

Water diffusion in silicate melts is important for understanding bubble growth in magma,
magma degassing and eruption dynamics of volcanos. Previous studies have made …

Syn-eruptive crystallisation can drastically increase magma viscosity, with profound
implications for conduit dynamics, lava emplacement and volcanic hazards. There is …

Systematic measurements of hydrogen isotopes and total water contents were carried out for
metamorphic minerals from ultrahigh-pressure (UHP) eclogite, amphibolite, schist and …

Studying volcanic phenomena and elucidating their mechanisms and laws require various
types of approaches, including geophysical observation, geological surveys, geochemical …

The iron oxidation state in silicate melts is important for understanding their physical
properties, although it is most often used to estimate the oxygen fugacity of magmatic …