Optically stimulated luminescence dating of loess in South-Eastern China using quartz and polymineral fine grains
文献类型：期刊论文
| 作者 | Avram, A.1,2; Constantin, D.2,3; Hao, Q.4,5,6; Timar-Gabor, A.1,2,3 |
| 刊名 | QUATERNARY GEOCHRONOLOGY
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 67页码:14 |
| 关键词 | Southeastern China Luminescence dating Quartz OSL Post-IR IRSL Polymineral fine grains Loess |
| ISSN号 | 1871-1014 |
| DOI | 10.1016/j.quageo.2021.101226 |
| 英文摘要 | Loess deposits distributed in southeastern China play an important role for paleoclimate reconstruction of the subtropical regions. These loess-paleosol deposits are mainly spread within the middle and lower reaches of the Yangtze River as well as in the drainage area of the Huai River. The ages of loess paleosol sequences that are distributed along the Huai River are not well constrained. In this study, the standard single-aliquot regenerative dose (SAR) optically stimulated luminescence (OSL) protocol and two elevated temperature post infraredinfrared stimulated luminescence SAR protocols (pIRIR225 and pIRIR290) were applied on 4-11 mu m quartz and polymineral fine grains, respectively, in order to obtain the first numerical luminescence chronology for a loesspaleosol sequence in northern Jiangsu Province. Our results show a good agreement between quartz SAR-OSL and polymineral pIRIR ages up to -70 ka. These findings confirm that Xiashu loess accumulated during the Last Glaciation. For samples older than this, the ages increasingly deviate with depth. Fine quartz ages beyond 70 ka are interpreted as underestimates, as previous studies reported that quartz ages >70 ka from various sedimentary origins worldwide may underestimate even if they pass rejection criteria and dose recovery tests. On the other hand, the pIRIR ages are most likely overestimating the true depositional ages as indicated by the results of dose recovery tests, where a 30-60% overestimation of the recovered dose is reported for values larger than -400 Gy. The overestimation of pIRIR protocols was also confirmed by the results obtained when large beta doses were added on top of the natural accrued dose. Moreover, our dating results suggest that L1/S1 transition (corresponding to MIS 5/4 boundary) occurred much higher in the stratigraphic sequence than may have been interpreted from the magnetic susceptibility enhancement. This inconsistency can be assigned to invalidity of magnetic susceptibility as a chronostratigraphical proxy due to ferrimagnetic minerals dissolution or transformation during paedogenesis processes in this humid subtropical region in the southeastern China. |
| WOS关键词 | DOSE-RESPONSE CURVES ; MAGNETIC-SUSCEPTIBILITY ; IRSL SIGNALS ; XIASHU LOESS ; PLEISTOCENE LOESS ; ALPHA-EFFICIENCY ; FELDSPAR ; OSL ; SEDIMENTS ; DEPOSITS |
| 资助项目 | European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC-2015-STG[678106] ; National Natural Science Foundation of China[41625010] ; National Natural Science Foundation of China[41888101] ; [EEA-RO-NO-2018-0126] |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000703602200001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC-2015-STG ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC-2015-STG ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC-2015-STG ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC-2015-STG ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC-2015-STG ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC-2015-STG ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC-2015-STG ; European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme ERC-2015-STG ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102727]  |
| 专题 | 地质与地球物理研究所_中国科学院新生代地质与环境重点实验室 |
| 通讯作者 | Avram, A. |
| 作者单位 | 1.Babes Bolyai Univ, Fac Environm Sci & Engn, Cluj Napoca, Romania 2.Babes Bolyai Univ, Inst Interdisciplinary Res BioNanosci, Cluj Napoca, Romania 3.Babes Bolyai Univ, Emil G Racovita Inst, Cluj Napoca, Romania 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 6.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Avram, A.,Constantin, D.,Hao, Q.,et al. Optically stimulated luminescence dating of loess in South-Eastern China using quartz and polymineral fine grains[J]. QUATERNARY GEOCHRONOLOGY,2022,67:14. |
| APA | Avram, A.,Constantin, D.,Hao, Q.,&Timar-Gabor, A..(2022).Optically stimulated luminescence dating of loess in South-Eastern China using quartz and polymineral fine grains.QUATERNARY GEOCHRONOLOGY,67,14. |
| MLA | Avram, A.,et al."Optically stimulated luminescence dating of loess in South-Eastern China using quartz and polymineral fine grains".QUATERNARY GEOCHRONOLOGY 67(2022):14. |
入库方式： OAI收割
来源：地质与地球物理研究所
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