Erratum to: Contrib Mineral Petrol DOI 10.1007/s00410-008-0327-8

The original version of this article unfortunately contained a mistake. The presentation of Equation 2 was incorrect. The corrected equation is given below.

$$ \frac{\partial C}{\partial t} - u_{r} \frac{\partial C}{\partial r} = \frac{\partial }{\partial r}\left( {D_{\text{OH}} \frac{\partial C}{\partial r}} \right) + \frac{2}{r}D_{\text{OH}} \frac{\partial C}{\partial r} $$

The correct version is the one solved in the paper.