THE Δ13C, Δ18O AND Δ 47 RECORDS IN BIOGENIC, PEDOGENIC AND GEOGENIC CARBONATE TYPES FROM PALEOSOL-LOESS SEQUENCE AND THEIR PALEOENVIRONMENTAL MEANING ArticleZamanian K., Kuzyakov Y., Lechler A.R., Schauer A.J., Huntington K.W.QUATERNARY RESEARCH. Vol. 101. 2021. P.. 256-272