Add to ORKGSubduction zone magmas are more oxidised on eruption than those at mid-ocean ridges. This is attributed either to oxidising components, derived from subducted lithosphere (slab) and added to the mantle wedge, or to oxidation processes occurring during magma ascent via differentiation. Here we provide direct evidence for contributions of oxidising slab agents to melts trapped in the sub-arc mantle. Measurements of sulfur (S) valence state in sub-arc mantle peridotites identify sulfate, both as crystalline anhydrite (CaSO4) and dissolved SO42− in spinel-hosted glass (formerly melt) inclusions. Copper-rich sulfide precipitates in the inclusions and increased Fe3+/∑Fe in spinel record a S6+–Fe2+ redox coupling during melt percolation through th...
© The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attributi...
The oxygen fugacity (fO2) of the Earth's mantle at subduction zones exerts a primary control on the ...
Arc basalts have a higher proportion of Fe in an oxidized state (Fe^(3+)) relative to Fe^(2+) compar...
Subduction zone magmas are more oxidised on eruption than those at mid-ocean ridges. This is attribu...
Subduction zone magmas are more oxidised on eruption than those at mid-ocean ridges. This is attribu...
Recycling oceanic crust in subduction zones via fluids or melts through the overlying mantle and to ...
Liberation of fluids during subduction of oceanic crust is thought to transfer sulfur into the overl...
Subduction zones facilitate chemical exchanges between Earth's deep interior and volcanism that affe...
A number of lines of evidence point to a causal link between oxidised slab-derived fluids, oxidised ...
The observation that primitive arc magmas are more oxidized than mid-ocean-ridge basalts has led to...
Sulfur contents in 98.5% of melt inclusions (MI) from calc-alkaline subduction basalts do not exceed...
International audienceTo constrain the effect of redox state on sulfur transport from subducting cru...
Sulfur is of a crucial importance in the Earth system influencing biological, climate, ore-forming, ...
The subduction of oceanic lithosphere is thought to enrich the mantle in elements concentrated in al...
Metamorphic devolatilization of subducted slabs generates aqueous fluids that ascend into the mantle...
© The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attributi...
The oxygen fugacity (fO2) of the Earth's mantle at subduction zones exerts a primary control on the ...
Arc basalts have a higher proportion of Fe in an oxidized state (Fe^(3+)) relative to Fe^(2+) compar...
Subduction zone magmas are more oxidised on eruption than those at mid-ocean ridges. This is attribu...
Subduction zone magmas are more oxidised on eruption than those at mid-ocean ridges. This is attribu...
Recycling oceanic crust in subduction zones via fluids or melts through the overlying mantle and to ...
Liberation of fluids during subduction of oceanic crust is thought to transfer sulfur into the overl...
Subduction zones facilitate chemical exchanges between Earth's deep interior and volcanism that affe...
A number of lines of evidence point to a causal link between oxidised slab-derived fluids, oxidised ...
The observation that primitive arc magmas are more oxidized than mid-ocean-ridge basalts has led to...
Sulfur contents in 98.5% of melt inclusions (MI) from calc-alkaline subduction basalts do not exceed...
International audienceTo constrain the effect of redox state on sulfur transport from subducting cru...
Sulfur is of a crucial importance in the Earth system influencing biological, climate, ore-forming, ...
The subduction of oceanic lithosphere is thought to enrich the mantle in elements concentrated in al...
Metamorphic devolatilization of subducted slabs generates aqueous fluids that ascend into the mantle...
© The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attributi...
The oxygen fugacity (fO2) of the Earth's mantle at subduction zones exerts a primary control on the ...
Arc basalts have a higher proportion of Fe in an oxidized state (Fe^(3+)) relative to Fe^(2+) compar...