Lake Baikal sediment contain information for understanding of long-term climate changes in the in the continental interior. In the present study, we analyzed abundances of biogenic silica and uranium in the core sediment (BDP93-2 and BSS06-G2) from Buguldeika saddle in southern part of the lake. The uranium concentration shows a similar fluctuation pattern with the biogenic silica concentration (as a paleotemperature proxy) on a glacial and interglacial scale (i.e., 100-kyr periodicity), whereas these two chemical components an inverse correlation on a centennial to millennial scale during the interglacial and interstadial periods. This means that sedimentation process of biogenic silica and uranium in Lake Baikal is different from each other, suggesting that the uranium concentration of sediment is paleclimate proxy different from palotemperature proxy (i.e., paleomoisture proxy). Also, comparison of the Baikal uranium concentration with the Hovsgol detrital component indicates a positive correlation during the late Holocene each other. Based on the above assumption, climate of continental Asia become wet condition during the interglacial and interstadial periods and dry condition during the glacial periods. In addition, the climate during interglacial and interstadial periods is characterized by alternation of cold-wet and warm-dry conditions. ; 第23回名古屋大学年代測定総合研究センターシンポジウム平成22(2010)年度報告