*Corresponding author, e-mail: rhalama@geo.uni-potsdam.de

In the print and online version of the title article, an incorrect version of the mineral formula of vesuvianite was given (page 194). The correct vesuvianite formula should be: Ca19Mg(MgAl7)Al4(Si2O7)4(SiO4)10[(OH)9|O].

Consequently, the mass balances involving vesuvianite (page 213) have to be reformulated, and the corrected formulations are given below.
46 CaMgSi2O6diopside+38 CaAl2Si2O8anorthite+7 Mg2SiO4olivine+54 H2O=4 Ca19Mg2Al11Si18O68[(OH)9|O]vesuvianite+4 Ca2Mg5Si8O22(OH)2in amphibole+8 Mg4Al4Si2O10(OH)8in chlorite+55 SiO2
87 CaMgSi2O6diopside+33 CaAl2Si2O8anorthite+70 H2O=6 Ca19Mg2Al11Si18O68[(OH)9|O]vesuvianite+3 Ca2Mg5Si8O22(OH)2in amphibole+10 Mg6Si4O10(OH)8in chlorite+68 SiO2

None of these corrections affect the validity of the results and conclusions. The authors apologise for any inconvenience.