Abyssal peridotites are ultramafic rocks collected from mid-ocean ridges that are the
residues of adiabatic decompression melting. Their compositions provide information on the …

We review physical and chemical constraints on the mechanisms of melt extraction from the
mantle beneath mid–ocean ridges. Compositional constraints from MORB and abyssal …

This paper presents the first comprehensive major and trace element data for∼ 130 abyssal
peridotite samples from the Pacific and Indian ocean ridge–transform systems. The data …

We describe a newly calibrated model for the thermodynamic properties of magmatic silicate
liquid. The new model, pMELTS, is based on MELTS [Ghiorso and Sack, 1995] but has a …

Geochemical data have been interpreted as requiring that a significant fraction of the melting
in MORB source regions takes place in the garnet peridotite field, an inference that places …

This paper presents the results of the first quantitative petrological modelling of abyssal
peridotites. The mantle beneath a ridge may be considered as two regions:(1) the melting …

The major and trace element composition of late Cenozoic basalts (0–10 Ma) across the
Basin and Range province (B&R) preserve a clear signal of mantle melting depth variations …

The major element, trace element, and isotopic composition of mid‐ocean ridge basalt
glasses affected by the Azores hotspot are strongly correlated with H2O content of the glass …

Geochemical and isotopic data suggest that the source regions of oceanic basalts may
contain pyroxenite in addition to peridotite. In order to incorporate the wide range of …

The position of the transition from spinel lherzolite to garnet lherzolite in the system CaO-
MgO-Al 2 O 3-SiO 2 (CMAS) has been determined experimentally at near-solidus …