Fig. 4

Cumulative distribution plot (A), zircon U–Pb age spectra and pie charts (B) from sediments in the Mu Us sandy land, Hobq desert, CLP, and potential sources. Data for the Western North China Craton were obtained from Darby and Gehrels (2006), Li et al. (2010), Hu et al. (2013), Qu et al. (2020), Licht et al. (2016), Chen et al. (2021). Data for the Tarim Basin were obtained from Xie et al. (2007) and Yang et al. (2013). Data for the Northeastern Tibetan Plateau were obtained from Gehrels et al. (2003a), Pullen et al. (2011), Licht et al. (2016), Zhang et al. (2016) and Nie et al. (2015). Data for the northern Gobi were obtained from Zou (2017), Pullen et al. (2011) and Xie et al. (2007). Data for the NW deserts were obtained from Nie et al. (2015), Stevens et al. (2010), Licht et al. (2016) and Zhang et al. (2016); Data for the NE CLP was obtained from Zhang et al. (2021)