RADIOACTIVE ISOTOPE STUDIES
Journal Article
·
· Oceanus (U.S.)
OSTI ID:4806122
The program for analysis of long-lived radioisotopes from fallout in the Atlantic Ocean is described. Sampling problems and the expected movement patterns of Sr/sup 90/, Ce/sup 144/, Pm/sup 147/, and Cs/sup 137/ in the ocean are discussed. The results for Sr/sup 90/ in 1957 and 1958 show that more Sr/sup 90/ was found below 100 m than above that depth and that about three times more Sr/sup 90/ per unit area was found in the ocean than on land at comparable latitudes. Ce/sup 144/ and Pm/sup 147/, which were expected to associate with particles and to rate from each other as well, Ce/sup 144/ tending to stay longer in the upper layers. It is concluded that Pm/sup 147/ associates with inorganic particles sinking at rates >100 m per month, while Ce/sup 144/ associates with organic particles. The CHAIN 17 cruise of RV CRAWFORD around the Romanche Trench is described; the analyses of the ocean samples collected on this cruise are now in progress. (D.L.C.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-16-026731
- OSTI ID:
- 4806122
- Journal Information:
- Oceanus (U.S.), Journal Name: Oceanus (U.S.) Vol. Vol: 8: No. 1; ISSN OCEAA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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