[BCG06-01] REY-rich mud in the modern and past oceans
Keywords:seafloor mineral resources, rare-earth elements, REY-rich mud, umber, seafloor hydrothermal activity, deep-sea sediment
Owing to plate tectonics, deep-sea sediments deposited in the past now constitute accretionary complexes along subduction margins. Therefore, REY-rich mud in the past ocean is expected to be found in the accretionary complexes. One of such a counterpart of REY-rich mud is a metalliferous sedimentary rock called “umber.” In the presentation, we will provide an overview of REY-rich mud from a modern seafloor deposit to an ancient analogue.
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