| Abstract: | Readily accessible analytical data from 530 stations from which manganese nodules have been collected are used to investigate what relationship, if any, there is between grade (expressed as the combined copper and nickel content) and the number of samples. It is concluded that not only average grade but also cut-off grade have the relationships with cumulative quantities suggested by Lasky, subject to the exclusion of certain, apparently anomalous, data. These relationships can be used to derive information on the distribution of the quantity of contained metal at different average and cut-off grades, which may have applications to other mineral deposits. |
