%0 Journal Article %T Influence of Mg<sup>2+</sup>, Fe<sup>2+</sup> and Zn<sup>2+</sup> Cations on <sup>13</sup>C-<sup>18</sup>O Bonds in Precipitated Aragonite, Calcite and Dolomite: An <i>ab Initio</i> Study %A Jie Yuan %J Open Journal of Geology %P 254-267 %@ 2161-7589 %D 2015 %I Scientific Research Publishing %R 10.4236/ojg.2015.55023 %X The influence of metal cations on 13C-18O bonds in carbonates is still under debate. This paper used ab initio method to investigate this kind of influence of Mg2+, Fe2+ and Zn2+ cations on 13C-18O bonds in precipitated aragonite, calcite and dolomite. The polynomials of жд47 and reduced partition function ratios (RPFRs) for 13/12C,