Unbekannt
PANGAEA
In:
Supplement to: Fewkes, Ronald H; McFarland, William Douglas; Reinhart, W R (1980): Evaluation of metal resources at and near proposed deep sea mine sites. United States Bureau of Mines, Open File Report, 108-80, 242 pp
Publikationsdatum:
2023-08-28
Beschreibung:
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 analysis of 11 nodules or more to predict metal content within plus or minus 10 percent of the mean value.
Schlagwort(e):
NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
Materialart:
Dataset
Format:
application/zip, 4 datasets
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