This introductory article provides a synopsis of our current understanding of the form and
dynamics of magma reservoirs in the crust. This knowledge is based on a range of …

The trans-crustal magma system paradigm is forcing us to re-think processes responsible for
magma evolution and eruption. A key concept in petrology is the liquid line of descent (LLD) …

In the past 4000 years, three rifting episodes have occurred on the Reykjanes Peninsula
(RP, SW Iceland) at time intervals of about 800-1000 years, with the activation of four of the …

Maximum depths of earthquakes in different settings are commonly thought to lie within a
transition, many kilometers in width, from brittle deformation at shallow depths to plastic …

Mantle volatiles are transported to Earth's crust and surface by basaltic volcanism. During
subaerial eruptions, vast amounts of carbon, sulfur and halogens can be released to the …

Seismically imaged axial melt lenses (AMLs) are seen almost everywhere along the axis of
fast-spreading ridges but at only a few localized segment centers on slow-spreading ridges …

Over 2 weeks in August 2014, magma propagated 48 km laterally from Bárðarbunga
volcano before erupting at Holuhraun for 6 months, accompanied by collapse of the caldera …

The recent eruption of the Cumbre Vieja Volcanic Ridge in La Palma started on September
19, 2021, after a series of seismic swarms and lasted 85 days. Seismic swarms showed a …

Dykes and sills occupy Mode I (extension), Mode II (shear), or hybrid mode fractures and
most of the time transport and store magma from deep reservoirs to the surface. Subject to …

The loss of volatiles from a magma reservoir affects the magmatic overpressure responsible
for driving ground deformation and eruptions. Although the high‐temperature metamorphic …