Abstract
The problem of nodule formation can be connected to a considerable extent with postdeposional phase transformations in sediments. This information may be obtained from REE. Previous studies have shown that REE scavenged by hydrogenous Fe oxyhydroxides have positive Ce anomaly and more abundance in LREE. On the contrary hydrothermal Fe oxyhydroxides uptake REE from seawater with negative Ce anomaly and depletion in LREE. On the base of this difference in REE patterns the fate of Fe oxyhydroxides in the sediments with hydrothermal input during diagenesis can be considered. This study describes REE behaviour in sediments, nodules and micronodules (MN) of Guatemala Deep.
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