Waters et al. (2011) Perspective on the genesis of E-MORB from chemical and isotopic heterogeneity at 9-10ºN East Pacific Rise.


The study of chemically and isotopically enriched mid-ocean ridge basalts (E-MORB) has offered substantial insight into the origin of mantle heterogeneity, but the exact processes involved in producing this E-MORB enrichment are vigorously debated. Additionally, because the ages of E-MORB are not well constrained, the temporal petrogenetic and geological relationships between E-MORB and normal (N)-MORB are not known.