A complex of geological, biostratigraphical, paleopedological, magnetostratigraphic, and radiometric techniques is used for subdivision and correlation. A series of magnetostratigraphic columns for glacial, alluvial, lacustrine, and loess-soil deposits has been composed. The marker used are: Bruhnes/Matuyama reversal, the base of the Jaramillo subchron, and Blake excursion. Their positions in the sections are discussed. A loess-soil succession is considered in detail, with eight stages of intense soil formation and nine stages of loess accumulation established on the Belovo reference section. In number of the climatostratigraphic cyclites, it is comparable with the world's standard sections of similar origins. Special attention is given to description of the Early Pleistocene stages of soil formation. The Malinovy pedocomplex has been described for the first time; it is related to the final stage of the Matuyama chron and is characterized by the fauna similar to the Petropavlovsk (Karay-Dubin) fauna. Two alternative versions are proposed to correlate glacial and loess-soil deposits on the West-Siberian Plain and to compare them with the isotope-oxygen scale. Analysis is given to causes of discrepancy in interpretation of the results obtained by different methods of study (magnetostratigraphy, paleopedology, paleotheriology, and TL-dating).
