Chemical geodynamics of mafic magmatism above subduction zones
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 …
mafic igneous rocks at convergent plate boundaries, where island arc basalts (IAB) and …
Subduction erosion and arc volcanism
Tectonic or subduction erosion refers to the removal of upper-plate material from the forearc
at convergent margins. Subduction erosion has been suggested to represent a major …
at convergent margins. Subduction erosion has been suggested to represent a major …
An evaluation of five models of arc volcanism
A first-order observation of convergent margin volcanism is that continental arc
stratovolcanoes have substantially elevated incompatible element abundances and notable …
stratovolcanoes have substantially elevated incompatible element abundances and notable …
[PDF][PDF] On the importance of crystallization-differentiation for the generation of SiO2-rich melts and the compositional build-up of arc (and continental) crust
In this paper we review processes responsible for the formation of granites in subduction
systems. While there is robust evidence that strongly peraluminous, so-called S-type …
systems. While there is robust evidence that strongly peraluminous, so-called S-type …
The importance of mantle wedge heterogeneity to subduction zone magmatism and the origin of EM1
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 …
be investigated via rear-arc lavas that have minimal slab influence. This “ambient mantle …
The role of subduction erosion in the generation of Andean and other convergent plate boundary arc magmas, the continental crust and mantle
CR Stern - Gondwana Research, 2020 - Elsevier
Subduction erosion, which occurs at all convergent plate boundaries associated with
magmatic arcs formed on crystalline forearc basement, is an important process for chemical …
magmatic arcs formed on crystalline forearc basement, is an important process for chemical …
A quantitative framework for global variations in arc geochemistry
Arc magmas are generated by partial melting of a mantle wedge modified by inputs from
subducting sediment and igneous ocean crust. Despite this uniform tectonic process, global …
subducting sediment and igneous ocean crust. Despite this uniform tectonic process, global …
Multiple episodes of rock-melt reaction at the slab-mantle Interface: formation of high silica primary magmas in intermediate to hot subduction zones
Siliceous slab-derived partial melts infiltrate the sub-arc mantle and cause rock-melt
reactions, which govern the formation of diverse primary arc magmas and lithological …
reactions, which govern the formation of diverse primary arc magmas and lithological …
Transcrustal and source processes affecting the chemical characteristics of magmas in a hyperactive volcanic zone
Arc magma generation and evolution are affected by transcrustal processes, such as
assimilation and fractional crystallisation, and source processes like slab influx into the …
assimilation and fractional crystallisation, and source processes like slab influx into the …
The origin of arc basalts: New advances and remaining questions
Whether arc magmatism occurs above oceanic subduction zones is the forefront of studies
on convergent plate margins. The most important petrologic issue related to the evolution of …
on convergent plate margins. The most important petrologic issue related to the evolution of …