摘要
Fig. 13 Ce/Nb-Th/Nb diagram for Carboniferouss volcanic rocks from Wulungu-Luliang area (after Song et al. 2004). DMM depleted mantle, SDC recycled subduction-derived component, S.S subducting sediments in arcs, RSC recycled residual slab composition, OIB ocean-island basalt, N-MORB normal mid-ocean ridge basalt, E- MORB enriched MORB, PM primitive mantle