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Seasonal variations of 228Ra/226Ra and 228Th/228Ra ratios in surface water from the eastern East China Sea.
- Source :
-
EPJ Web of Conferences . 2012, Issue 24, p1-7. 7p. - Publication Year :
- 2012
-
Abstract
- A total of 30 surface water samples were collected at 2 sites on the east side of the East China Sea (ECS) during 2008-2010, and 226Ra, 228Ra, and 228Th activities were measured using low-background γ-spectrometry. The 228Ra/226Ra and 228Th/228Ra activity ratios of the samples exhibited notable seasonal variations (228Ra/226Ra = 0.2-3.3; 228Th/228Ra = < 0.1-0.4) accompanying salinity changes (31.0-34.6). These changes are hypothesized to cause the change by altering the mixing ratio of 228Ra-rich and particle-rich continental shelf water within the ECS. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SPECTROMETRY
*SALINITY
*CONTINENTAL shelf
*OCEAN currents
Subjects
Details
- Language :
- English
- ISSN :
- 21016275
- Issue :
- 24
- Database :
- Academic Search Index
- Journal :
- EPJ Web of Conferences
- Publication Type :
- Conference
- Accession number :
- 85747792
- Full Text :
- https://doi.org/10.1051/epjconf/20122404005