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handle: 10261/77081
[ES]: Ag, As, Ba, Be, Bi, Cd, Co, Cr, Cu, Ga, Ge, Hg, In, La, Li, Mo, Mn, Ni, Pb, Rb, Sn, Sr, Th, Tl, V. W, Y y Zr se determinan en los horizontes de dos suelos pardo-calizos, siguiendo un método espectrográfico semicuantitativo. Cada horizonte se dividió en ocho fracciones: 390 micras, estudiando el contenido en elementos-traza en cada una de ellas separadamente, ya que la fertilidad potencial está condicionada a la asociación con un determinado tamaño de partícula. Se ha realizado el estudio mineralógico de algunas fracciones para tratar de relacionar la presencia de cada elemento con la existencia de los minerales encontrados. Los resultados muestran la contribución al contenido total de los suelos de cada fracción para cada uno de los elementos estudiados.
[EN]: Ag, As, Ba, Be, Bi, Cd, Co, Cr, Cu, Ga, Ge, Hg, In, La, Li, Mo, Mn, Ni, Pb, Rb, Sn, Sr, Th, Tl, V. W, Y and Zr are determined following a semiquantitative spectrographic method, in the horizons of two calcareous-brown soils. Each horizon was divided into eight fractions: 2, 2-10, 10-20, 20-48, 48-100, 100-200, 200-300 and 390 microns, and the trace-element content studied separately as potential fertility is subject to the association with a given particle size. The mineralogical study of some fractions has been carried out in order to relate the presence of each element to the existance of the minerals found. The results show the contribution to the total of the soils of every fraction for each of the elements studied.
29 páginas, 4 gráficas, 15 tablas, 2 perfiles. 14 referencias.
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