Spinel peridotites from a variety of island arcs have been utilised to calculate the redox state
of the mantle wedge above subduction zones. Oxygen fugacities (fO2 values) calculated …

Abstract 57 Fe Mössbauer spectroscopy is employed to estimate Fe 3+ Σ Fe ratios and the
Fe 2 O 3 content of 28 well characterized pyroxenite and peridotite xenoliths from central …

Several of the supposedly anhydrous major minerals of the upper mantle have been shown
to regularly contain small amounts of hydrogen. The concentrations measured in the most …

Clinopyroxene–liquid geothermobarometry is a widely used tool for estimating the
conditions under which mafic magmas are stored before they erupt. However, redox …

Oxygen fugacity (f O 2) is an intensive variable that describes the redox state of a system. By
controlling the valence state of multivalent elements, f O 2 affects the stability of iron-bearing …

We present a quantitative model for Na partitioning between clinopyroxene and silicate melt,
applicable in the range 0.1 MPa to 6.0 GPa, 1000–2000° C over a wide span of composition …

The authors report a redox profile based on Mössbauer data of spinel and garnet to a depth
of 210 km from mantle xenoliths of the northern (N) and southeastern (SE) Slave craton …

We experimentally investigated phlogopite-and C–O–H-bearing lherzolite to model the
mantle wedge fluxed by volatiles released from a subducting crustal slab. Experiments have …

Pyroxene is the chief reservoir of Fe 3+ in upper mantle peridotite, but experiments exploring
pyroxene/melt Fe 3+ partitioning (D Fe3+ pyx/liq) have been restricted to 100 kPa and …

Basalts and peridotites from mid-ocean ridges record f O2 near the quartz-fayalite-magnetite
buffer (QFM), but peridotite partial melting experiments have mostly been performed in …