Reports

Mechanisms of Trace Metal Transport in Rivers

Science  06 Apr 1973:
Vol. 180, Issue 4081, pp. 71-73
DOI: 10.1126/science.180.4081.71

Abstract

Trace metals transported by the Amazon (and Yukon rivers were analytically partitioned among the transport phases: in solutions, ion exchange, organic materials, metallic coatings, and crystalline solids. The distribution for both rivers is similarly proportioned, with copper and chromium transported mainly in the crystalline solids, manganese in coatings, and iron, nickel, and cobalt distributed equally between precipitated metallic coatings and crystalline solids.

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