The240Pu239Pu ratio, a potential geochronometer
Autor: | Minoru Koide, Edward D. Goldberg, Tsaihwa J. Chow, K.K. Bertine |
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Rok vydání: | 1985 |
Předmět: | |
Zdroj: | Earth and Planetary Science Letters. 72:1-8 |
ISSN: | 0012-821X |
DOI: | 10.1016/0012-821x(85)90112-8 |
Popis: | The Arctic and Antarctic ice sheets maintain records of the atmospheric fallout in their datable strata. The 240Pu239Pu ratios in these polar reservoirs uniquely distinguish particulate fallout from the pre-moratorium nuclear atmospheric weapons tests, dominated by the U.S., and the post-moratorium atmospheric weapons tests, dominated by the U.S.S.R. Thus, they offer the possibility of use as a geochronological tool for some marine, glacial, lacustrine and soil systems. |
Databáze: | OpenAIRE |
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