Инд. авторы:	Astakhov A.S., Kalugin I.A., Shi X.F., Aksentov K.I., Darin A.V., Hu L.M., Babich V.V., Melgunov M.S., Plotnikov V.V.
Заглавие:	The Role of Ice Cover in the Formation of Bottom Sediment Chemical Composition on the East Siberian Shelf
Библ. ссылка:	Astakhov A.S., Kalugin I.A., Shi X.F., Aksentov K.I., Darin A.V., Hu L.M., Babich V.V., Melgunov M.S., Plotnikov V.V. The Role of Ice Cover in the Formation of Bottom Sediment Chemical Composition on the East Siberian Shelf // Geochemistry International. - 2021. - Vol.59. - Iss. 6. - P.585-598. - ISSN 0016-7029. - EISSN 1531-8397.
Идентиф-ры:	DOI: 10.1134/S0016702921050025; WoS: 000662875200005;
Реферат:	eng: Transfer functions for reconstruction of the duration of ice-free period at stations in the Chukchi, East Siberian and Laptev seas have been developed by comparison of hydrometeorological data and the chemical composition of bottom sediments accumulated during observation period. It has been established that in addition to the previously discussed processes through which the ice cover affects the chemical composition of bottom sediments (primary bioproductivity and redox conditions of bottom waters), there are several mainly local processes developed on the East Siberian shelf. These are the changes of terrestrial aqueous and solid runoff; coastal abrasion rate; current structure and water exchange through the Bering Strait between the Pacific and Arctic oceans; and intensity and direction of the ice/iceberg rafting of sediments. It is shown that some typical elements (Br, Ca, As, Fe, Ga) can be used as universal geochemical proxies for qualitative reconstruction of ice conditions.
Ключевые слова:	ARCTIC-OCEAN SEDIMENTS; ORGANIC-MATTER; CHUKCHI SEA; HOLOCENE CLIMATE; ALTAI; PB-210; VARIABILITY; BERING-SEA; LAKE-SEDIMENTS; DIFFUSE SPECTRAL REFLECTANCE; Laptev Sea; East Siberian Sea; Chukchi Sea; paleoclimatology; Arctic ice cover; geochemistry; bottom sediments;
Издано:	2021
Физ. хар-ка:	с.585-598