Rare earth element composition of Mn deposits at Site H in the Pacific Ocean@en

The table presents the REE contents and fluxes of manganese nodules and crusts from the Manganese Nodule Program (MANOP) site H (6.5° N, 93° W) in the eastern equatorial Pacific. Samples for this study were analysed for La, Ce, Nd, Sm, Eu, Tb, Yb and Lu by instrumental neutron activation. Analytical precision for the REE was within 10% for all samples, except for Nd and Tb which have peak interferences. Interferences due to U were negligible.该表格展示了东赤道太平洋锰结核项目（Manganese Nodule Program, MANOP）H站位（6.5°N，93°W）的锰结核和结壳的稀土元素（Rare Earth Elements, REE）含量与通量。本研究采用仪器中子活化法，对样品中的镧（La）、铈（Ce）、钕（Nd）、钐（Sm）、铕（Eu）、铽（Tb）、镱（Yb）及镥（Lu）进行了分析。除钕和铽存在峰干扰外，所有样品的REE分析精度均控制在10%以内；铀（U）引发的干扰可忽略不计。