228Ra in the Dead Sea

Details 228Ra in the Dead Sea 228Ra in the Dead Sea

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987e%26psl..85...54s&link_type=abstract

Earth and Planetary Science Letters, Volume 85, Issue 1-3, p. 54-58.

Computer Science

1

Scientific paper

The 228Ra concentrations of the Dead Sea waters range from 0.13 to 1.48 dpm kg-1, two to three orders of magnitude higher than those of ocean waters and lake waters. However, the 228Ra/226Ra activity ratios, (0.12-1.29) × 10-2, are in the range reported for the hydrosphere.
The surface waters of the Dead Sea are enriched in 228Ra by a factor of about three over the near-bottom waters. There is a factor of about two spatial variability in the mid-depth Ra concentrations at the two profile stations. The near-bottom 228Ra gradients yield vertical eddy diffusivity coefficient (K) of 2.0 and 0.4 cm2 s-1 at profile locations 1 and 2 respectively. These values are comparable to those measured in oceans and lakes.

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