Инд. авторы:	Volvakh A.O., Volvakh N.E., Smolyaninova L.G.
Заглавие:	Paleoclimatic changes and short-period events of the Late Pleistocene in the record of loessial sediments of the Lozhok section, south-eastern West Siberia
Библ. ссылка:	Volvakh A.O., Volvakh N.E., Smolyaninova L.G. Paleoclimatic changes and short-period events of the Late Pleistocene in the record of loessial sediments of the Lozhok section, south-eastern West Siberia // Геология и минерально-сырьевые ресурсы Сибири. - 2019. - Iss. 4. - P.17-27. - ISSN 2078-0575.
Внешние системы:	DOI: 10.20403/2078-0575-2019-4-17-27; SCOPUS: 2-s2.0-85078982799;
Реферат:	eng: Data on the detailed distribution of the Ba/Sr, Mg/Ca, Sr/Ca, Mg/Sr ratios, magnetic susceptibility, and U-ratio, which are paleoclimatic indicators, are presented. Records of geochemical proxies and magnetic susceptibility show good convergence. It is shown that the climatic conditions of the cold stadials of the last ice age (70,000-11,700 years old) gradually became drier. Within each stadial, there is also a decrease in precipitation from its beginning to completion. In the same direction, the force of the wind flow expressed by the U-ratio coefficient increased. It is established that the climate of loess accumulation periods was not consistently dry and cold: fast short-period climatic fluctuations have been revealed in each loess horizon; they are expressed in a sharp increase in the amount of precipitation with its gradual decrease. An attempt is made to compare the identified millennium-old climatic oscillations with the Dansgaard-Oeshger events recorded in the ice record of the NGRIP core climate and reflected in many deposits of the Northern Hemisphere. © 2019 Siberian Research Institute of Geology, Geophysics and Mineral Resources. All rights reserved.
Ключевые слова:	Weathering proxies; Short-period climatic fluctuations; Pleistocene; West Siberia; Loess-paleosoil sequence; Loess; Magnetic susceptibility;
Издано:	2019
Физ. характеристика:	с.17-27