1. 210Pb dating of sediments from Havana Bay.
- Author
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Gelen, A., Díaz, O., Simón, M. J., Herrera, E., Soto, J., Gómez, J., Ródenas, C., Beltrán, J., and Ramírez, M.
- Subjects
LEAD ,NATIVE element minerals ,SEDIMENTS ,RADIOCHEMISTRY ,NUCLEAR chemistry ,PHYSICAL & theoretical chemistry - Abstract
The study of sedimentation rates and age of marine sediments has been performed through many years using natural and artificial radioactive isotopes. Polluted sediments were collected in three sampling points in the Havana Bay. Sedimentation rates were estimated using two different radiometric approaches: the depth profiles of
137 Cs and210 Pb. The maximum activity137 Cs might indicate the proximity of the 1964's. The unsupported210 Pb has been measured to apply both the Constant Initial Concentration Method (CIC) and the Constant Rate of Supply Method (CRS) Dating Models. The results show values for sedimentation rate ranging from 0.2 up to 1.3 cm. y-1 increasing with time which manifests the importance of the achievement of a project of dredging. [ABSTRACT FROM AUTHOR]- Published
- 2003
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