Two long sediment sequences have been recovered from two lakes in Western Crimea (Lakes Saki and Dzharylgach) within a frame of the joint Danish-Russian-Ukrainian interdisciplinary project "Northern Black Sea in the 1st millennium BC: Human history and climate changes". A detailed examination of retrieved cores included lithostratigraphy and varve counting, magnetostratigraphy, pollen, diatom and ostracods analyses as well as AMS C14 dating. The transition from the open-sea-environment conditions to the lagoon and consequently to the closed mineralized lakes is dated to ca. 5610-5340 calendar yrs BP for the Saki Lake and ca. 5590-5350 calendar yrs BP for Lake Dzharylgach. A complete isolation of the Saki Lake from the Black Sea occurred ca. 5200 calendar yrs BP and that of the Dzharylgach Lake around 4700 calendar yrs BP, i.e. ca. 500 years later than Lake Saki, during the transgression phase of the Black Sea.
геология Морей И Океанов. Материалы Xvii Международной Научной Конференции (школы) По Морской Геологии, Москва, 12-16 Ноября 2007 Г., 2007, p. 282-284
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XVII mezhdunarodnaja nauchnaja konferencija (shkola) po morskoj geologii "Geologija morej i okeanov", 2007
Russian Academy of Sciences, Institute of Oceanology, Russian Foundation for Basic Research