Sediment dating and groundwater residence time in the lower basin of the Var river by radiochemistry and γ-ray spectrometry methods
A method for dating sediment core layers from the Var riverbed was developed. The signature of the Chernobyl event was detected in the layer sequence by γ-ray spectrometry of 137Cs and correlated to the flow amplitude from the historical records. The residence time of groundwater in the aquifer of t...
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Published in | Comptes rendus. Chimie Vol. 12; no. 8; pp. 861 - 864 |
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Main Authors | , , , , , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
Paris
Elsevier SAS
01.08.2009
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | A method for dating sediment core layers from the Var riverbed was developed. The signature of the Chernobyl event was detected in the layer sequence by γ-ray spectrometry of
137Cs and correlated to the flow amplitude from the historical records.
The residence time of groundwater in the aquifer of the lower Var valley was determined by measuring activity ratios of radium isotopes in well water samples.
Une méthode pour dater des carottes de sédiments collectées dans le lit du Var a été devéloppée. L'évènement de l'accident de Tchernobyl a été détecté dans les échantillons par spectrométrie gamma du
137Cs et corrélé avec les intensités des crues. Le temps de résidence de l'eau dans la nappe phréatique de la basse vallée du Var a été deduit des rapports d'activités des isotopes de radium dans l'eau de puits. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1631-0748 1878-1543 1878-1543 |
DOI: | 10.1016/j.crci.2008.11.004 |