• 责任者：Yang Jiedong (Center of Modern Analysis ; Nanjing University ; Nanjing 210093 ; China) ; Li Gaojun
• 刊名：Earth Science Frontiers
• 出版年：2009
• 卷期：16(6)
• 关键词：马兰黄土 ; Malan Loess ; 物源区 ; provenance ; 黄土高原 ; Loess Plateau
• 页码：p.195-206
• 图表：3 illus., 6 tables, 35 refs.
• 分类号：1400
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

In this paper, the authors systematically collected the samples of the Malan loess in the Chinese Loess Plateau (CLP); the sand of ten deserts, the loess of the Hexi corridor, and the loess and sediments of riverbed and lake bottom on the northeast part of the Qinghai-Tibetan Plateau. After removing calcites, the determined Nd and Sr isotopes of the Chinese Loess Plateau show that εNd(0) from -9.2 to -11.3 and ⁸⁷Sr/⁸⁶Sr from 0.71784 to 0.71944. They fall within the B region of Nd-Sr isotope plot of provenances and are identical to those of the Badain Jaran Desert, the Tengger Desert and the northeast part of the Qinghai-Tibet Plateau. The determined C isotopes of dolomites of the Chinese Loess Plateau show that δ13C from 1.2‰ to 1.5‰. They are identical to those of the Qaidam Desert, the Hexi corridor and the northeastern part of the Tibetan Plateau. These imply that the northeastern part of the Tibetan Plateau, the Badain Jaran Desert and the Tengger Desert may be the source areas of loess materials of the Loess Plateau are derived ultimately from the northeast part of the Qinghai-Tibetan Plateau.