ИСТИНА

Study of offshore islands of the Kara Sea is instrumental in determining the paleogeographic scheme of development of North-West Siberia. Studies in this are rare. The Belyi Island, which is located north of the Yamal peninsula, is relatively large in size (50x40 km), but has a low altitude, generally no more than 10 meters above the sea level. This is important because the development of these islands in the Late Glacial and Holocene period took place during significant sea-level fluctuations. Here, at a relatively shallow depth (1-2 m) buried peat horizons were found, which deposited both incentive, and redeposited. They are dated late glacial - early Holocene (13000-9500 Cal BP). Modern peat horizons began to form in the late Holocene (1390 ± 20, 2480 ± 25 BP). Thus, there is a large gap in the peat formation on the Belyi Island during the middle Holocene, which was allegedly caused by the transgression of the sea.