Three groups of paleomagnetic data of the Sangdanlin Formation in the Saga area in the Tibetan Plateau, summaried from the paleomagnetic studies of Yuan et al. (2021) and Meng.et al. (2023)

The previous paleomagneitc data of Yuan et al. (2021) and Meng et al. (2023) from the Sangdanlin Formation in the Saga area were reanalyzed. The datasets were divided into three groups based ont the variation of paleo-inclination. The data of three groups were used for constraining the rapid fore-arc and back-arc extensions of the southeastern Lhasa Terrane during the Middle Paleocene。