Fig. 1From: Provenance differentiation and earth surface process of the Mu Us sandy land constrained by detrital zircon U–Pb datingA Topographic map of the study area and potential sources surrounding the Mu Us sandy land, modified from Stevens et al. (2013). Arrows show approximate directions of prevailing winds: blue-westerlies; green-East Asian winter monsoon; red-East Asian summer monsoon. B Sample locations in the Hobq deserts, Mu Us sandy land and Chinese Loess Plateau, including the samples in this study and previous studies (Table 1)Back to article page