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采用加速器质谱法测定了东太平洋海盆ＣＣ区３个多金属结核和中太平洋海盆北部１个多金属结核中(１０)Ｂｅ的质量活度（比活度，下同）随径向深度的分布。论述了(１０)Ｂｅ－加速器质谱法测定生长速率的步骤。使用该法测得这４个多金属结核的生长速率分别为７．５，２．７，９．６和１．５ｍｍ·Ｍａ(－１)，这些数据接近其他作者利用(１０)Ｂｅ法测定的世界各大洋多金属结核的生长速率。还研究了(１０)Ｂｅ法测定的生长速率与多金属结核ｍ(Ｍｎ)／ｍ(Ｆｅ)比值的关系。
The mass activities (specific activity, the same below) of three polymetallic nodules in the CC sea area of the Eastern Pacific Basin and the distribution of (10) Be in one polymetallic nodule in the northern part of the Central Pacific Basin were measured by using accelerator mass spectrometry. The procedure of (10) Be-accelerator mass spectrometry for the determination of growth rate is discussed. Using this method, the growth rates of these four polymetallic nodules were found to be 7.5, 2.7, 9.6 and 1.5 mm · Ma (-1), respectively, which are close to those of other authors using the (10) Be method Of the world’s polymetallic nodules growth rates. The relationship between growth rate and m (Mn) / m (Fe) ratio of polymetallic nodules was also studied by (10) Be method.