Contents of P2O5 and REE in phosphorites from shelves and Pacific seamounts

Recent phosphorites from the Namibian shelf are characterized by low REE contents, depletion in REE compared to host sediments and sharp deficiency of lanthanum and europium. In...纳米比亚陆架上的晚近磷块岩（phosphorites）以低稀土元素（REE）含量为典型特征，相较于其寄主沉积物，该类磷块岩的稀土元素整体发生贫化，且镧（lanthanum）与铕（europium）呈现显著匮乏。In...