Rare Earth Elements: Their Importance in Understanding Soil Genesis
Figure 2
REEs concentration values for Post-Archean Australian Average Shale (PAAS) and North American Shale Composite (NASC). Concentration values were reported in McLennan et al. [5] with original citations in Taylor et al. [6] for the PAAS and original citations in Gromet et al. [7] for the NASC.
