Arc-basaltic melts of typical hydration state (≥ 2 wt% H 2 O) are buoyant relative to all
common crustal igneous rock types and may pass adiabatically from a mantle source …

A comprehensive review of boninitic and other low-Ti subduction-related lavas from modern
intraoceanic arc-backarc systems, and of low-Ti ophiolites shows a complete compositional …

Synthetic spinel harzburgite and lherzolite assemblages were equilibrated between 1040
and 1300° C and 0.3 to 2.7 GPa, under controlled oxygen fugacity (f O 2). f O 2 was buffered …

Volcanic rocks of the 3.7–3.8 Ga Isua greenstone belt have undergone heterogeneous, poly-
phase post-magmatic alteration, resulting in mobilisation of many elements including LREE …

Chromian spinel in volcanic rocks is a potential discriminant for magma chemistry. The TiO2
content of spinel, compared at similar Fe3+/(Cr+ Al+ Fe3+) ratios, can distinguish island arc …

We describe and model a potential re-equilibration process that can affect compositions of
melt inclusions in magnesian olivine phenocrysts. This process, referred to as “Fe-loss”, can …

Experimental evidence is used to estimate H 2 O contents in low-MgO high-alumina basalts
(HABs)(< 6 wt.% MgO) and basaltic andesites (BAs)(< 5 wt.% MgO) that occur worldwide in …

The oxidation state of lithospheric upper mantle is heterogeneous on a scale of at least four
log units. Oxygen fugacities (f_ O_2) relative to the FMQ buffer using the olivine …

Oceanic basalts, such as mid-ocean ridge basalts (MORB) and ocean island basalts (OIB),
are characterized by large isotopic and trace element variability that is hard to reconcile with …

This work investigates the potential of experiments on peridotite melting to provide
quantitative estimates of the temperature and pressure at which basaltic melts were formed …