Development of a Reliable Method for Evaluation of Deep Sea Manganese Nodule Deposits.
Fewkes-RH; McFarland-WD; Reinhart-WR; Sorem-RK
NTIS: PB/80-182116 :94 pages
Methods of estimating manganese nodule grade and concentration were investigated using data from a well-explored east-central Pacific manganese nodule deposit. Bulk chemical analyses of 159 nodules recovered from 21 box cores show that the range in metal values between nodules from a single box core is commonly small but may be greater than the range in mean metal content of nodules from widely separated box cores. The metal exhibiting the greatest variability in the 21 box cores is zn, followed in decreasing order by cu, mn, CO, ni, and fe. Approximately half of the box cores required analyses of 11 nodules or more to predict metal content within +/-10 percent of the mean value.
CP; Final Contract Report;
NTIS Accession No.
Washington State University