Ubiquitous heterogeneity in the Earth's mantle has been documented by numerous
chemical and isotopic analyses of oceanic basalts. Despite the ever-increasing amount of …

The geochemical signatures of subducting crust have been identified in various types of
mafic igneous rocks at convergent plate boundaries, where island arc basalts (IAB) and …

Crustal recycling at convergent plate boundaries is essential to mantle heterogeneity.
However, crustal signatures in the mantle source of basaltic rocks above subduction zones …

An assemblage of MORB analyses (n= 792 samples), including a suite of new, high-
precision LA-ICP-MS measurements (n= 79), has been critically compiled in order to provide …

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 …

Based on previous and new results on partial melting experiments of pyroxenites at high
pressure, we attempt to identify the major element signature of pyroxenite partial melts and …

One hypothesis for the origin of alkaline lavas erupted on oceanic islands and in
intracontinental settings is that they represent the melts of amphibole-rich veins in the …

Basaltic rocks from Shuangliao, northeast China include basanite, alkali olivine basalt,
transitional basalt and sub-alkaline diabase. Ar–Ar dating shows that the basanites and …

The application of Mo isotopes to study geodynamic processes is a rather new development
that has gained considerable momentum over the past few years. Its redox-sensitivity …

Traditional inversion techniques applied to the problem of characterizing the thermal and
compositional structure of the upper mantle are not well suited to deal with the nonlinearity …