Abstract
An attempt is made to show that the recently reported amounts of Be 10 and Al 26 in tektites can possibly be explained in terms of Urey's “comet” hypothesis for tektite origin. On the basis of our calculations we obtain a similar level of Be 10 activity to that reported by Ehmann and Kohman (1958) but a somewhat lower figure for Al 26 activity. It is shown that by mixing one part of chondritic silicate, which is assumed to represent the non-volatile comet material and to contain the radioactive nuclides, with thirteen parts of arkose-like material, the overall tektite composition can be accounted for rather satisfactorarily.
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