Abstract
The source of elements and the modern sedimentary environment of the ferromanganese nodules enriched area of the North Pacific region were analysed statistically and discussed in detail. Cluster analysis shows the area's surface sediments are mainly brown clay and biogenic calcareous, calcsiliceous and siliceous ooze. Factor (principal component) analysis shows that the area's trace elements (Fe, Mn, Cu, Co, Ni, Zn, Cr, etc.) mainly come through adsorption of clay minerals and secondarily from authigenic sediments related to biochemical processes.
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