1 Introduction There have been a lot of studies on the Upper Pleistocene-Holocene Series and the paleoclimate vicissitude in the Salawusu River valley on the southeastern border of the Mu Us Desert on the Ordos Plateau, China (Fig. 1) (de Chardin and Licent, 1924a, b; de Chardin and Young, 1930; de Chardin, 1941; Pei and Li, 1964; Kozlovski, 1971; Yuan, 1978; Dong et al., 1983, 1989, 1998; Gao et al., 1985; Lu, 1985; Guan et al., 1986; Shao, 1987; Li et al., 1988, 1993; Sun and Zhao…