... more than 2 cm below this fracture plane In t h s companson, it is mainly labile Fe and Mn which are sigmficantly less concentrated in the area lrnmediately adjacent to the fracture plane Other noticeable hfferences occur when subsamples from above fracture 2 are com- pared w t h subsamples taken more...

... of the borosilicate glass evolves in time. In an initial period, direct dissolution is prevalent and the degradation of the glass increases linearly with time. The duration of this period decreases with increasing temperature. In a second period, the Increase of silica concentration in solution, which facilitates...

... the effective porosity ofthe medium,C is the concentration of element r at a fixed point (mass per unit volume of pore duid), ZR, is the sum of the rate of all reactions involving speaes L (mass per unit volume of total sediment per umt time), Dm is the coeffiaent of mechamcal dispersion which is a function...