Geochemical Characteristics of Sediments from Lake El'gygytgyn, Chukotka Peninsula, as Indicators of Climatic Variations for the Past 350 ka

摘要

This paper presents data on the inorganic geochemical characteristics of the sediments from Hole LZ1024 (Lake EFgygytgyn, Chukotka, 67°30' N 172°08' E). It is demonstrated how these data are associated with climatic variations during isotope stages 1 -9. The sediments of the warm stages are characterized by elevated contents of SiO_2, CaO, Na_2O, K_2O, and Sr and low concentrations of TiO_2, Al_2O_3, MgO, and Fe_2O_3. It has been established that the geochemical parameters correlate with global climatic variations.