Serpentinites are central to water (re) cycling in subduction zones and thus effect fluid-
mediated element transfer between the hydrosphere and the Earth's mantle and back into …

Sulfur belongs among H2O, CO2, and Cl as one of the key volatiles in Earth's chemical
cycles. High oxygen fugacity, sulfur concentration, and δ34S values in volcanic arc rocks …

Metamorphic devolatilization of subducted slabs generates aqueous fluids that ascend into
the mantle wedge, driving the partial melting that produces arc magmas. These magmas …

The observation that primitive arc magmas are more oxidized than mid-ocean-ridge basalts
has led to the paradigm that slab-derived fluids carry SO2 and CO2 that metasomatize and …

Recent thermodynamic and experimental studies have suggested that volatile organic
compounds (eg, methane, formate, and acetate) can be produced and stabilized in …

Previous studies have concluded that dehydration of serpentinites in subduction zones
produces oxidizing fluids that are the cause of oxidized arc magmas. Here, observations of …

Sulfur degassed at volcanic arcs calls for dissolved sulfate ions (S6+) released by
subduction-zone fluids, oxidizing (in association with carbon) the subarc mantle, but sulfur …

We investigate the late Cretaceous blueschist-facies (480° C-1.8 GPa) segment of the
Zagros suture zone, a well-preserved block-in-matrix paleo-subduction channel. We aim to …

Subduction of serpentinite-hosted carbonate rocks formed during the oceanic stage in the
oceanic lithosphere (ophicalcite) or by metasomatism at the slab mantle-wedge interface …

Constraining conditions and mechanisms of the early stages of exhumation from within
subduction zones is challenging. Although pressure, temperature, and age can be inferred …