(Table 2) Contents of U, P2O5, CO2, and TOC in phosphorites from Pacific seam...
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Uranium content of in phosphorites from Pacific seamounts does not exceed 10ppm; it is significantly lower than in phosphorites from submarine continental margins and deposits...
太平洋海山(seamounts)磷块岩(phosphorites)的铀含量不超过10ppm,其数值显著低于海底大陆边缘(submarine continental margins)及相关矿床中的磷块岩铀含量……



