[6] W Balsam, Jun Chen, Jun-Feng Ji. Earth and Planetary Science Letters, 223, 335(2004).
[7] Qian Fang, Hailie Hong, Lulu Zhao et al. Palaeogeography Palaeoclimatology Palaeoecology, 473, 1(2017).
[12] Zhen Chen, Quanzhou Gao, Jing Wang et al. Catena, 167, 305(2018).