Although it is widely recognized that mantle peridotite is compositionally heterogeneous,
primitive mantle-like peridotite is commonly considered the potential peridotite source when …

A new thermodynamic model is presented for calculating phase relations in peridotite, from
0· 001 to 60 kbar and from 800° C to liquidus temperatures, in the system NCFMASOCr. This …

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 …

We have experimentally investigated the fluid-absent melting of a phlogopite peridotite at
1.0 GPa (1000–1300° C) to understand the source of K 2 O-and SiO 2-rich magmas that …

Melting experiments have been performed at 3 GPa, between 1150 and 1450° C, on a
phlogopite-peridotite source in the garnet stability field. We succeeded to extract and …

Erupted lavas and tephras remain among the best tools we have to ascertain the mantle
processes that give rise to the compositional diversity and spatial distribution of near-primary …

The oxygen fugacity (f O2) of convecting upper mantle recorded by ridge peridotites varies
by more than four orders of magnitude,–. Although much attention has been given to …

Angrites are silica-undersaturated achondrites formed very early in the history of the Solar
System, and the most volatile-depleted known meteorites. As such, the study of angrites can …

Cratonic lithosphere is believed to have been chemically buoyant and mechanically
resistant to destruction over billions of years. Yet the absence of cratonic roots at some …

Understanding the source lithology of basalts can greatly impact our understanding of
magmatic processes, which can help us gain insight into mantle heterogeneity and crustal …