(Table 2b) Rare earth element contents in ferruginous nodules and a crust from the Barents Sea@en
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Ce/Ce* = 2(Ce/Ce_NASC)/(La/La_NASC + Nd/Nd_NASC), where NASC an index attributed to contents in the NASC (North American Shale Composite) reference shale.
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2026-04-18



