文献类型：期刊文献

英文题名：River or Gobi Sediments: Which is the Dominant Source for the Aeolian Sand in the Badain Jaran Sand Sea,Northwest China

作者：Liang, Aimin[1] Zhang, Zhengcai[1,2] Lizaga, Ivan[3] Dong, Zhi-Bao[1] Zhang, Yunfeng[4] Liu, Xiaokang[1] Xiao, Feng-Jun[1] Gao, Junliang[5]

第一作者：Liang, Aimin

机构：[1] School of Geography and Tourism, Shaanxi Normal University, Xi'An, 710062, China; [2] Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; [3] Isotope Bioscience Laboratory - ISOFYS, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, Ghent, 9000, Belgium; [4] School of Geography Science, Taiyuan Normal University, Jinzhong, 030619, China; [5] Experimental Center of Desert Forestry, Chinese Academy of Forestry, Dengkou, 015200, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220409465)

语种：英文

外文关键词：Geochemistry - Rivers - Sediments

摘要：River and gobi sediments play significant roles in modern sand seas formation and evolution. However, little is known about their respective source contributions, especially in quantitative terms. In the present study, we selected a representative sand sea (the Badain Jaran Desert) in Northwest China to quantitatively identify the sediment sources. To achieve this goal, we collected Heihe River sand and gobi sediments (Ejin gobi and the Beida–Yabrai gobis) as the potential sand sources. We performed provenance identification based on robust geochemical indicators, and found that both of these potential sources provided sand materials to the sand sea. Our quantitative analysis based on a novel method, namely consensus ranking (CR) and consistent tracer selection (CTS), suggested that the gobi sediments supplied more sand than the river sand, accounting for 76.85% and 23.15% of the total, respectively. Therein, the Ejin gobi was the dominant source for most regions of the sand sea (63.17±21.43%), but the Heihe River mainly fed sand source to the southern part of the sand sea (23.15±18.66%) and the Beida–Yabrai gobis provided the most sand to regions near the fan (13.68±11.49%). Their source supply areas largely control this contribution difference. Our results demonstrate the critical role of gobi sediments for sand accumulation of the Badain Jaran Sand Sea. ? 2022, The Authors. All rights reserved.