Manganese Nodules: Thorium-230: Protactinium-231 Ratios
- 4 November 1966
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 154 (3749), 646-647
- https://doi.org/10.1126/science.154.3749.646
Abstract
The Th230: Pa231 activity ratio in 7 of 11 manganese nodules is less than 10.8, the theoretical production ratio of activities in the ocean. This finding indicates difierential accumulation of these nuclides in authigenic deposits of manganese-iron oxide.Keywords
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