TOTAL CONCENTRATION OF URANIUM AND THORIUM IN SOME BRAZILIAN SOILS

Authors
PEREZ DV SALDANHA MFD MOREIRA JC VAITSMAN DS
Citation
Dv. Perez et al., TOTAL CONCENTRATION OF URANIUM AND THORIUM IN SOME BRAZILIAN SOILS, Pesquisa agropecuaria brasileira (1977), 33(8), 1998, pp. 1417-1423
Citations number
20
Categorie Soggetti
Agriculture,"Agriculture Dairy & AnumalScience
Journal title
Pesquisa agropecuaria brasileira (1977) → ACNP
ISSN journal
0100204X
Volume
33
Issue
8
Year of publication
1998
Pages
1417 - 1423
Database
ISI
SICI code
0100-204X(1998)33:8<1417:TCOUAT>2.0.ZU;2-P
Abstract
Samples from superficial (A) and subsuperficial (B) diagnostic horizon s of 15 Brazilian soils were analysed to determine the content of U an d Th (on a dry weight basis) by ICP-MS following digestion with Aqua r egia. A range of 0.003 to 38.080 mg/kg for Th and 0.001 to 2.115 mg/kg for U, and 0.003 to 2.298 mg/kg for U and 0.071 to 42.090 mg/kg for T h were obtained for the A and B horizons, respectively. Positive and s ignificant correlation coefficients were found between the two element s and iron and clay contents for the 30 soil samples analysed.