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Rhizospheric Mobilization and Plant Uptake of Radiocesium from Weathered Micas

II. Influence of Mineral Alterability

^a Radiation Protection Research Unit, Radioecology Section, SCK•CEN, Foundation of Public Utility, Boeretang 200, 2400 Mol, Belgium
^b Unité Sciences du Sol, Université catholique de Louvain, Place Croix du Sud 2/10, 1348 Louvain-la-Neuve, Belgium

View larger version (18K): [in a new window]   Fig. 1. Potassium concentrations in the percolates of the different treatments (M, muscovite; B, biotite; P, phlogopite) during the experimental period.

View larger version (14K): [in a new window]   Fig. 2. Net biomass (dry weight) produced by willow (A), total potassium content of plants (B), and radiocesium transfer factor (TF) (C) for each treatment (M, muscovite; B, biotite; P, phlogopite).

View larger version (13K): [in a new window]   Fig. 3. X-ray diffraction (XRD) patterns of the rhizosphere micas as compared to the XRD pattern of the bulk micas for each treatment. The intensity ratios of the 1.4- to 1.0-nm reflection (I1.4/I1.0) for rhizosphere micas are 0.025 in muscovite, 0.068 in biotite, and 0.300 in phlogopite.