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(Article of periodic en Anglais - 2008)

Document title

Natural radioactivity of some red Mediterranean soils

Authors(s) and Affiliation(s)

LAUBENSTEIN M. (1) ; MAGALDI D. (2) ;
(1) Lab. Nazionali del Gran Sasso, Assergi, ITALIE
(2) Dip. di Scienza del Suolo e Nutritione della Pianta, Univ., Firenze, ITALIE

Abstract

Seventeen samples of B-horizon of Pleistocene Terra Rossa soils from carbonate rock were collected in different countries of the Mediterranean regions (Spain, Italy and Southern Turkey). The concentration of naturally occuring radionuclides (238U, 232Th, Knar) was measured in all samples using gamma-ray spectrometry at the Gran Sasso National Laboratory. The results indicated that soils characterized by absence or scarcity of 2:1 clay minerals are poor in uranium whereas soils with illite-smectite as the dominant minerals in clay fraction are noticeably richer. Then it is suggested that uranium occurring in traces in the calcite lattice of carbonate rocks, after it is released by weathering, migrates in solution and can be adsorbed by the soil exchange complex, mainly by clay minerals of Terra Rossa soils

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2008, vol. 76, no1 [pp. 22-26]

Bibliographic references : 38 ref.

Collation : 2 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2008.08.005

Prodig - Bibliographie Géographique Internationale (BGI)
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