petdb

PetDB

S. Escrig, A. Bezos, S. L. Goldstein, C. H. Langmuir, P. J. Michael (2009). "Mantle source variations beneath the Eastern Lau Spreading Center and the nature of subduction components in the Lau basin-Tonga arc system" G-CUBED 10, Q04014

New high-density sampling of the Eastern Lau Spreading Center provides constraints on the processes that affect the mantle wedge beneath a back-arc environment. PetDB MORB data provide a compositional range for typical mid-oceanic ridges and allow to distinguish the effect of the subduction input on back-arc basalt petrogenesis and the change in subduction input with distance from the Tonga arc.