Dust transport information and paleoclimatic changes revealed by the loess in Ranwu, south-eastern Xizang

Changes in Late Pleistocene Dust Activity in the Southern Tibetan Plateau in Response to Orbital Precession and Mountain Glaciers

“…The loess in the YTR valley could have primarily been derived from nearby unconsolidated sediments from floodplains or dry riverbeds (Du et al, 2018;Liang et al, 2023;Ling et al, 2021Ling et al, , 2022Sun et al, 2007;Wang et al, 2020;Zhang et al, 2021). During the past decades, accelerated mass spectrometry (AMS) 14 C Feng, Wang, et al, 2022;Kaiser, Opgenoorth, et al, 2009;Li et al, 2016;Zhang, Feng, et al, 2015) and quartz optically stimulated luminescence (OSL) techniques have been used to date the YTR loess (Cheng, Yang, Long, Song, Chen, et al, 2023;Gao et al, 2021Gao et al, , 2023Kaiser, Lai, et al, 2009;Lai et al, 2009;Li et al, 2016;Ling et al, 2020Ling et al, , 2023Pan et al, 2024;Sun et al, 2007;Yang et al, , 2023Zhang, Feng, et al, 2015). These published AMS 14 C and OSL dates fall almost entirely within the Holocene (Ling et al, 2020), which is probably attributable to the wide distribution of glacier dammed lakes in the YTR valley (Cheng, Yang, Long, Song, Chen, et al, 2023;Hu et al, 2018;Liu et al, 2015), glacial meltwater erosion, or poor efficiency of dust-trapping vegetation (Ling et al, 2019;Sun et al, 2007) before the Holocene.…”