SHORT-TIME ACTIVATION-ANALYSIS OF LAKE-SEDIMENTS

Distribution of Al, Hf, Mn, Sc, Ti and V in both bulk- and magnetic fr actions of Lake Nasser sediments has been investigated. The elements w ere analyzed by means of short-time activation analysis. The results s how that the most southern part of the lake are enriched with Hf, Mn a nd V. It was also indicated that, with the exception of Al, all studie d elements have higher values in magnetic fractions compared with the corresponding values in bulk sediment. The considerable amounts of Mn, Ti and V in the magnetic fractions may possibly be attributed to the accommodation of these elements within the Fe-bearing minerals.