Up to the present time, many scientists have believed that the orogeny of the Greater Caucasus and the associated formation of the Pre-Caucasian deflections occurred in the Oligocene. This assumption is based on the attribution of the Maikop series and younger strata of the Pre-Caucasian bends to molasses, i.e. strata formed by products of orogen erosion. Currently, the question of the origin of clastic rocks can be solved on the basis of U-Pb dating of detrital zircon grains from these rocks, which makes it possible to revise the areas of material demolition. The results of U–Pb isotope dating (LA-ICP-MS, GIN RAS) of detrital zircon grains from sands involved in the structure of the section of the Pliocene strata (Sennoe formation or undifferentiated sediments of the Sennoe and Zheleznogorsk formations) distributed west of Krymsk, west of Krasnodar region, southern side of the West Kuban trough, sample are presented K23-013. A high degree of similarity is shown in detrital zircon ages distribution for grains from the studied sample and from the sands of the Upper Cenozoic of the northern side of the Manych Valley, the Lower Don and the Lower Volga, i.e. sands which are products of erosion of the basement and cover of the East European and Scythian-Turanian platforms. The conclusion was made about the pericratonic (rather than foreland) tectonic type of the West Kuban trough and the Quaternary uplift time of the Western segment of the Greater Caucasus orogen.
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