| Identification of a late Quaternary alluvial-aeolian sedimentary sequence in the Sichuan Basin, China | |
| Feng, JL (Feng, Jin-Liang)1; Ju, JT (Ju, Jian-Ting)1; Chen, F (Chen, Feng)1,2; Hu, ZG (Hu, Zhao-Guo)1,3; Zhao, X (Zhao, Xiang)4; Gao, SP (Gao, Shao-Peng)1; Feng, JL | |
| Source Publication | QUATERNARY RESEARCH
 |
| 2016 | |
| Volume | 85Issue:2Pages:279-289 |
| DOI | 10.1016/j.yqres.2016.01.006 |
| Abstract | The late Quaternary sedimentary sequence in the northwestern part of the Sichuan Basin consists of five lithological units and with increasing depth include the: Chengdu Clay; Brown Clay; Red Clay; Sandy Silt; and basal Muddy Gravel. The genesis, provenance and age of the sediments, as well as the possible presence of hiatuses within this sequence are debated. Measurements of grain-size, magnetic susceptibility, quartz content, quartz 8180 values, element composition, and Sr-Nd isotopic concentrations of samples from a typical sedimentary sequence in the area provides new insights into the genesis and history of the sequence. The new data confirm that the sediments in study site are alluvial-aeolian in origin, with basal alluvial deposits overlain by aeolian deposits. Like the uppermost Chengdu Clay, the underlying Brown Clay and Red Clay are aeolian in origin. In contrast, the Silty Sand, like the basal Muddy Gravel, is an alluvial deposit and not an aeolian deposit as previously thought. Moreover, the succession of the aeolian deposits very likely contains two significant sedimentary hiatuses. Sedimentological analysis demonstrates that the source materials for the aeolian deposits in the northwestern part of the Sichuan Basin and those on the eastern Tibetan Plateau are different. Furthermore, the loess deposits on the eastern Tibetan Plateau are derived from heterogeneous local sources. (C) 2016 University of Washington. Published by Elsevier Inc. All rights reserved. |
| Subject Area | 自然地理学 |
| WOS ID | WOS:000373661300010 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | Northeastern Tibetan Plateau Grain-size Distribution Loess Plateau Dust Provenance Climate-change Paleoclimatic Implications Magnetic-susceptibility Last Glaciation Chengdu Plain Deposits |
| Cooperation Status | 国内 |
| Department | 环境 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/7743 |
| Collection | 图书馆 |
| Corresponding Author | Feng, JL |
| Affiliation | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Cent Bur Met & Geol, Shandong Zhengyuan Inst Geol Explorat, Jinan 264002, Peoples R China 4.Southwestern Architectural Design Inst, Chengdu 610081, Peoples R China |
| Recommended Citation GB/T 7714 | Feng, JL ,Ju, JT ,Chen, F ,et al. Identification of a late Quaternary alluvial-aeolian sedimentary sequence in the Sichuan Basin, China[J]. QUATERNARY RESEARCH,2016,85(2):279-289. |
| APA | Feng, JL .,Ju, JT .,Chen, F .,Hu, ZG .,Zhao, X .,...&Feng, JL.(2016).Identification of a late Quaternary alluvial-aeolian sedimentary sequence in the Sichuan Basin, China.QUATERNARY RESEARCH,85(2),279-289. |
| MLA | Feng, JL ,et al."Identification of a late Quaternary alluvial-aeolian sedimentary sequence in the Sichuan Basin, China".QUATERNARY RESEARCH 85.2(2016):279-289. |
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| File Name/Size | DocType | Version | Access | License | ||
| V.85(2) 279-289 2016（2349KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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