Abstract

When solving the issues of paleogeography, soil science and chronostratigraphy of loess deposits, paleosoil horizons become objects of detailed study since they reflect the geological history of the Quaternary sedimentation. Loess deposits are widespread on the globe including in Uzbekistan. In the piedmont and mountainous regions of Uzbekistan there are quite powerful strata (more than 100 meters) of loess deposits. The objects of our research were selected sections of loess deposits of the Prytashkent region in which Quaternary buried soil horizons are fairly well traced. The morphological description of the loess-soil deposits of the study area revealed specific features for the paleosoils of the Eopleistocene, Pleistocene and Holocene. Paleogeographic changes (climatic and tectonic) during the Quaternary period “imprinted” on the horizons of soils and loess formations. The carbonate nodules in loess deposits also reflect the variety of physiographic conditions of the Quaternary period. Comparison with the carbonate nodules of other regions makes it possible to distinguish them in the form of visual regional criteria for the dismemberment and correlation of loess strata