Uranium migration in Paleozoic lateritic Paleosol Samples, Southwestern Sinai, Egypt
نویسندگان
چکیده
This paper spotlights on determining the concentrations and distribution of radionuclides in paleozoic lateritic paleosol samples from El-Gor area, southwestern Sinai, Egypt, using high-resolution gamma spectrometry. The concentrations of eU (ppm), eTh (ppm), and K (in percentage) were determined. The obtained data of eU, eTh and their ratios were used for calculations of uranium migration tendency and its remobilization. The mean activity concentrations of U, U, Th, Ra and K were 480.92 Bqkg, 22.38 Bqkg, 31.80 Bqkg, 401.98 Bqkg and 222.44 Bqkg, respectively. The migration study showed that the uranium is migrated-in in the paleosol and this is also confirmed by the mean U / Ra ratio which in the side of uranium enrichment than radium.
منابع مشابه
A new subgenus and species of the genus Hedyphanes Fischer von Waldheim, 1820 (Coleoptera: Tenebrionidae: Helopini) from Israel and Egypt.
A new species, Hedyphanes chikatunovi sp. n., is described from southern Israel (Negev, Gerofit) and Egypt (Northern Sinai). These localities represent the southwestern limit of the distribution of the genus. The new species is placed in a new monotypic subgenus, Microhedyphanes subgen. n.
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