High-pressure dehydration of serpentinite during subduction generates fluids that flux and
melt the overlying mantle wedge, forming primary arc basalts. These basalts are …

Oxidation of the sub-arc mantle driven by slab-derived fluids has been hypothesized to
contribute to the formation of gold deposits in magmatic arc environments that host the …

The chemical exchange between the atmosphere, crust and mantle depends on sediment
recycling via subduction. However, it remains unclear how atmospherically modified …

Subduction is a key element in the carbon cycle between the Earth's surface and deep
interior. In addition to pressure (P) and temperature (T), oxygen fugacity (ƒO 2) is an …

The redox state of arc mantle has been considered to be more oxidized and diverse than
that of the mid-ocean ridge, but the cause of the variation is debated. We examine the redox …

Sulfur is important to a range of subduction zone processes, but the factors controlling the
sulfur content of primitive arc magmas are poorly understood. In particular, uncertainties …

During the process of differentiation, the magmas in convergent margins undergo an
increase of oxidized nature, accompanied by a decreased Fe content and concentration of …

Some of the largest magmatic-hydrothermal copper ore deposits and deposit clusters are
associated with arc-oblique fault systems. Whether this structural context impacts the …

The isotopic composition of sulfur in convergent margin-related orthomagmatic sulfides is
critical to the debate on: 1) petrological mechanisms of sulfide saturation in relatively …

Arc magmas, the building blocks of continental crust, are depleted in total iron (Fe), have
higher ratios of oxidized Fe to total Fe (Fe3+/∑ Fe), and record higher oxygen fugacities (f …