Deep drilling of glaciers in Eurasian Arctic as a source of paleoclimatic records.

Abstract Results of the deep drilling (>80–100 m) of Eurasian Arctic glaciers (Svalbard, Severnaya Zemlya, and Franz Josef Land) from the middle of the 1970s to the end of the 1990s have been discussed. All spectra of the techniques used for ice-core and borehole studies, results of ice-core dating and major paleoclimatic conclusions have been analyzed. Particular emphasis has been placed on the problem of accuracy and comparison of dates suggested by different authors. New integrated time scale for Eurasian Arctic glaciers based on the ice-core dating of Vetreniy Ice Cap (Graham Bell Island and Franz Josef Land), which covers the last 700–800 years, has been developed. Methods and results of the new paleo-temperature reconstructions have been analyzed.