The transport and deposition of uranium, ionium and radium in rivers, oceans and ocean sediments

Physics

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Scientific paper

The important factors controlling the concentration of the radioelements in the oceans are the influx, the rate of radioactive decay and the rate at which the radioelements are removed by sedimentation. With such data as are available for the concentration of uranium and radium in ocean water, their rates of influx and their rates of deposition, it is possible to estimate the concentration of ionium in sea water (3.1 ± 1 × 10 -15 ) gm/cc and the amount of ionium annually transported into the oceans. It may be further concluded that in the geochemistry of uranium, influx and deposition in shallow water are of major importance while in the case of ionium, influx and deep water deposition seem most important and in the case of radium; the production by radioactive decay of ionium, the disintegration of radium itself, and deep water deposition are important factors. Ionium is not in equilibrium with uranium in ocean water.

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