Figure F6. North American shale composite (NASC)-normalized REE abundance of ferromanganese micronodules (FMMNs), Site 1216. NASC data are adapted from Haskin et al. (1968). The shaded area represents the range of REE abundance of bulk sediment samples.

Figure F6. North American shale composite (NASC)-normalized REE abundance of ferromanganese micronodules (FMMNs), Site 1216. NASC data are adapted from Haskin et al. (1968). The shaded area represents the range of REE abundance of bulk sediment samples.