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Science 2 June 1967:
Vol. 156. no. 3779, pp. 1219 - 1220
DOI: 10.1126/science.156.3779.1219
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Articles

Beryllium-10 in a Manganese Nodule

B. L. K. Somayajulu 1

1 Department of Earth Sciences, Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92038

Analyses of beryllium-10 activity in two sections of a manganese nodule indicate an accumulation rate that compares well with such rates measured by other methods on different nodules. The observed specific activity of beryllium-10 in the nodule is in accord with the calculations based on the production of beryllium-10 by cosmic rays in the atmosphere and with the geochnemistry of beryllium in the ocean.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)