抄録
<jats:title>ABSTRACT</jats:title><jats:p>Uranium occurs in corals at three sites: 1, in organic matter; 2, adsorbed on the surfaces of skeletal aragonite; and 3, in the aragonite lattice. Organic matter incorporates from sea water by chelation 40–70 ppm uranium; skeletal aragonite incorporates only 3 ppm. However, as the organic fraction is low (0·1%), its high concentration of uranium does not significantly affect the total concentration of uranium in the coral. A negligible concentration of uranium, 40–60 ppb, is adsorbed on skeletal aragonite from which it is readily leached or exchanged. This low concentration of adsorbed uranium (<2% of the total uranium in skeletal aragonite) is related to the very small specific surface area (1·5–1·8 m<jats:sup>2</jats:sup>/g of the corals.</jats:p>
収録刊行物
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- Sedimentology
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Sedimentology 20 (4), 523-528, 1973-11
Wiley
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詳細情報 詳細情報について
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- CRID
- 1360855568866827136
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- NII論文ID
- 30014559444
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- ISSN
- 13653091
- 00370746
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- データソース種別
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