Figure 5From: Geochemical characterization of oceanic basalts using Artificial Neural NetworkThe incompatible elements Zr, Ce, Rb, Ba and Sr show a variable distribution with Nb of the CIOB basalts. The hatched area represents IOR basalts (data from PETDB http://www.petdb.org/). Note that Zr, Ce and Ba show a relative depletion whereas Rb shows relative enrichment than the IOR basalts for a given Nb concentration. Sr shows a very close association with the IOR basalts.Back to article page