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太平洋南莱恩群岛和北科克群岛海域广泛分布锰结核。锰结核丰度变化从0.17公斤/米~2到31.2公斤/米~2,其中大于20公斤/米~2、15—10公斤/米~2和10—5公斤/米~2的站位分别为3.4％、13.8％和24％。锰结核大小从1厘米以下到10厘米,但多数直径在2—6厘米之间。锰结核的丰度变化与中结核(2—6厘米)的含量呈正比。结核分布和水深有关,以5000～5400米深度最为富集。在南纬5～9°的南部区多数丰度超过10公斤/米~2。控制南莱恩群岛和北科克群岛海域锰结核丰度变化的主要因素是沉积速率、碳酸盐补偿深度和浊流。
Manganese nodules are widely distributed in the Pacific Ocean in the islands of South Rylands and North Corsica. Manganese nodule abundance changes from 0.17 kg / m ~ 2 to 31.2 kg / m ~ 2, of which more than 20 kg / m ~ 2,15-10 kg / m ~ 2 and 10-5 kg / m ~ 2 stations respectively 3.4%, 13.8% and 24% respectively. Manganese nodules size from 1 cm to 10 cm, but most of the diameter of 2-6 cm. The abundance of manganese nodules varies in proportion to the content of tuberculosis (2-6 cm). The distribution of tuberculosis is related to the depth of water, most concentrated in the depth of 5000-5400 m. The southern part of the southern latitude 5 ~ 9 ° abundance more than 10 kg / m ~ 2. The main factors that control the change of manganese nodule abundance in the waters of South Ryne and North Cocos Islands are sedimentation rate, depth of carbonate compensation and turbidity.