>Dear friends,
>I am searching for informations, references a.s.o. about the differences in
>the del C13 between CO2 generated by burning of CaCO3 (if possible related
>with Temperature and duration of burning), and CO2 produced by the
>classical H3PO4 acidification.
>Thanks a lot for your help
>PAT
>
>__________________________________________________________

Pat:    For Equilibrium carbon isotope fractionation, see Chacko et al. GCA
55,2867, 1991.
                                                Bob Clayton