Abstract
The authors check the validity of the assumption concerning the constancy of A /SUB K/ in seawater. Accurate methods have been developed for determining the radioactivity of K-40 and the over-all potassium percentage in seawater samples. 14 samples were taken in the Pacific Ocean. The authors found that A /SUB K/ can be used as an indicator of elevated concentrations in large bodies of water of both extraterrestrial and volcanic matter.
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