Radium precipitation and extreme 238U-series disequilibrium along the Dead Sea coast, Israel

J. Kronfeld, S. Ilani, A. Strull

Research output: Contribution to journalArticlepeer-review

Abstract

Very intense gamma-ray emissions produced by nuclides in the 238U-decay series were measured in active and relict spring deposits along the Dead Sea coast. Precipitates of Ra near sites of modern springs provide a local source of Rn to coexisting waters. Relict spring deposits, representing prior Dead Sea levels, contain high concentrations of Ra. The Ra in both cases has been derived from the Dead Sea waters (or from the Dead Sea in combination with a Ra component from the primary spring water) and coprecipitated with hydrous oxides of Mn and Fe. The metal oxides precipitated in response to the mixing of the fresher spring waters with the Dead Sea brine.

Original languageEnglish
Pages (from-to)355-361
Number of pages7
JournalApplied Geochemistry
Volume6
Issue number3
DOIs
StatePublished - 1991

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