Organic Carbon-14 in the Amazon River System

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Science  07 Mar 1986:
Vol. 231, Issue 4742, pp. 1129-1131
DOI: 10.1126/science.231.4742.1129


Coarse and fine suspended particulate organic materials and dissolved humic and fulvic acids transported by the Amazon River all contain bomb-produced carbon-14, indicating relatively rapid turnover of the parent carbon pools. However, the carbon-14 contents of these coexisting carbon forms are measurably different and may reflect varying degrees of retention by soils in the drainage basin.