“…The use of oxygen isotopes recorded from biogenic or sedimentary hosts within lake sediments has become an increasingly common technique (Leng and Marshall, 2004;Jones and Roberts, 2008). A large number of such records from different parts of the world (Leng and Marshall, 2004;Leng and Barker, 2006;Swann and Leng, 2009), including the Lake Baikal region (Morley et al, 2005;Kalmychkov et al, 2007;Mackay et al, 2008Mackay et al, , 2011, have been published and demonstrate the potential for reconstructing past climate changes from the oxygen isotope composition of biogenic silica (d 18 O Si ) in both quantitative and qualitative ways.…”