The geochemical signatures of subducting crust have been identified in various types of
mafic igneous rocks at convergent plate boundaries, where island arc basalts (IAB) and …

Tephrochronology studies the deposits of explosive volcanic eruptions in the stratigraphic
record. The Southern (SVZ, 33–46° S) and Austral (AVZ, 49–55° S) Volcanic Zones of the …

The global carbon dioxide (CO2) flux from subaerial volcanoes remains poorly quantified,
limiting our understanding of the deep carbon cycle during geologic time and in modern …

Continental arc magmas supply the ore-forming element budget of most globally important
porphyry-type ore deposits. However, the processes enabling certain arc segments to …

A first-order observation of convergent margin volcanism is that continental arc
stratovolcanoes have substantially elevated incompatible element abundances and notable …

The composition of the convecting asthenospheric mantle that feeds the mantle wedge can
be investigated via rear-arc lavas that have minimal slab influence. This “ambient mantle …

Subduction zones represent the interface between Earth's interior (crust and mantle) and
exterior (atmosphere and oceans), where carbon and other volatile elements are actively …

Subduction erosion, which occurs at all convergent plate boundaries associated with
magmatic arcs formed on crystalline forearc basement, is an important process for chemical …

The processes that lead to the fourfold variation in arc-averaged compositions of mafic arc
lavas remain controversial. Control by the mantle-wedge thermal structure is supported by …

Much of the crust of Iran and Anatolia, including their oldest exposed rocks, formed during
an episode of intense convergent margin (arc) magmatism as a result of subduction of …