Climatic response to solar activity recorded in the Eocene varves from Qaidam Basin, northern Tibetan Plateau
文献类型：期刊论文
| 作者 | Zhang, Lei3,4; Fang, Ya-Nan3 ; Wang, Yi-Zhe2; Xue, Nai-Hua1; Li, Sha3; Chen, Lei4; Zhang, Hai -Chun3
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| 刊名 | PALAEOWORLD
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 33期号:3页码:788-799 |
| 关键词 | Northern Tibetan Plateau Qaidam Basin Eocene Xiaganchaigou Formation varve sunspot cycle |
| ISSN号 | 1871-174X |
| DOI | 10.1016/j.palwor.2022.11.004 |
| 通讯作者 | Fang, Ya-Nan(ynfang@nigpas.ac.cn) |
| 英文摘要 | The Earth's climate has been proved to be consistently paced by the quasi -periodic sunspot activity since the Paleoproterozoic. However, climatic response to the sunspot cycles in high -altitude areas under greenhouse condition is still unclear, largely due to the lack of high -resolution palaeoclimatic data. Here we present a continuous, 30 -cm -long core sample from the Eocene upper Xiaganchaigou Formation in the southwestern Qaidam Basin in the northern Tibetan Plateau. This core is marked by well-preserved annually chemogenic varves, composed of couplets of light micrite and dark clastic laminae. Varve thickness mainly ranges from 0.1 to 0.5 mm. Power spectrum of the bed number series of varve thickness shows a distinct cycle with a period of -20 year, which can be related to the 22 -year Hale sunspot cycle. In addition, we use XRF (X-ray fluorescence) Ca concentration and K/Ti ratio data and l-XRF (micro -X-ray fluorescence) Ca and K intensity data as paleoclimate proxies to conduct detailed cyclostratigraphic analyses. Power spectra of these proxies show sedimentary cycles at wavelengths of -40-12 mm, -8-3 mm, 3-1 mm and 0.2-0.1 mm, which are most likely caused by the -90year Gleissberg sunspot cycle, 22 -year Hale sunspot cycle, 11 -year Schwabe sunspot cycle and annually seasonal cycle, respectively. The consistent results from the above five independent paleoclimate proxies indicate that climate in the high -altitude Qaidam Basin in the Eocene greenhouse period was paced by multiple -scale sunspot cycles. Periodic variances in total solar irradiance (TSI) and galactic cosmic ray (GCR)-related clouds paced by sunspot cycles may play a key role on modulating regional climatic changes in the Qaidam Basin. (c) 2023 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights are reserved, including those for text and data mining, AI training, and similar technologies. |
| WOS关键词 | UPLIFT ; CYCLES ; CHINA ; DEFORMATION ; IRRADIANCE ; SEDIMENTS ; HISTORY ; SECTION ; GROWTH |
| 资助项目 | National Natural Science Foundation of China[41802118] ; National Natural Science Foundation of China[41730317] ; National Natural Science Foundation of China[41972018] ; Chinese Academy of Geological Sciences[DD20190009] ; Chinese Academy of Geological Sciences[DD20221829] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0706] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022310] ; Bureau of Geological Survey of China and National Committee of Stratigraphy of China[DD20160120-04] ; Special Basic Program of Ministry of Science and Technology of China[2015FY310100] |
| WOS研究方向 | Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001258661400001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Chinese Academy of Geological Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Bureau of Geological Survey of China and National Committee of Stratigraphy of China ; Special Basic Program of Ministry of Science and Technology of China |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/43969]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Fang, Ya-Nan |
| 作者单位 | 1.Vrije Univ Brussel, Analyt Environm & Geochem, B-1050 Brussels, Belgium 2.Lanzhou City Univ, BaiLie Sch Petr Engn, Lanzhou 730070, Peoples R China 3.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 4.Shandong Univ Sci & Technol, Coll Geosci & Engn, Qingdao 266000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Lei,Fang, Ya-Nan,Wang, Yi-Zhe,et al. Climatic response to solar activity recorded in the Eocene varves from Qaidam Basin, northern Tibetan Plateau[J]. PALAEOWORLD,2024,33(3):788-799. |
| APA | Zhang, Lei.,Fang, Ya-Nan.,Wang, Yi-Zhe.,Xue, Nai-Hua.,Li, Sha.,...&Zhang, Hai -Chun.(2024).Climatic response to solar activity recorded in the Eocene varves from Qaidam Basin, northern Tibetan Plateau.PALAEOWORLD,33(3),788-799. |
| MLA | Zhang, Lei,et al."Climatic response to solar activity recorded in the Eocene varves from Qaidam Basin, northern Tibetan Plateau".PALAEOWORLD 33.3(2024):788-799. |
入库方式： OAI收割
来源：南京地质古生物研究所
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