THE Δ<SUP>13</SUP>C, Δ<SUP>18</SUP>O AND Δ 47 RECORDS IN BIOGENIC, PEDOGENIC AND GEOGENIC CARBONATE TYPES FROM PALEOSOL-LOESS SEQUENCE AND THEIR PALEOENVIRONMENTAL MEANING Article Zamanian K., Kuzyakov Y., Lechler A.R., Schauer A.J., Huntington K.W. QUATERNARY RESEARCH. CAMBRIDGE UNIV PRESS. Vol. 101. 2021. P. 256-272