Pleistocene - Holocene paleoenvironmental records from permafrost sequences  at the Kara Sea coasts (NW Siberia, Russia)

Авторы: Streletskaya I.D., Gusev E.A., Vasiliev A.A., Oblogov G.E., Molodkov A.N.
Журнал: Geography, Environment, Sustainability
Том: 6
Номер: 3
Год издания: 2013
Издательство: Издательство Русского географического общества
Местоположение издательства: Москва
Первая страница: 60
Последняя страница: 76
Аннотация: Kara sea coasts were studied using comprehensive stratigraphic and geocryological methods. The paper presents the new analytical studies of ground ice and Quaternary deposits of Western Taymyr and presents the results of spore and pollen, foraminifera, grain-size, and mineralogical, geochemical, oxygen isotopic and other analyses. Several stratigraphic-geocryological transects from Yenisey and Gydan Bays, enable us to refine the stratigraphy and palaeogeographical reconstruction of environments and the freezing of Late Pleistocene-Holocene sediments. Marine sedimentation conditions during late Kargino time (MIS 3) changed to continental conditions in MIS 2 and MIS 1. Marine sediments were frozen syn- and epigenetically with cryotexture and ground ice formation. Ice wedges formation corresponds to the end of Pleistocene (MIS 2) and during cooler periods of the Holocene.
Добавил в систему: Стрелецкая Ирина Дмитриевна

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