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| DOI | 10.1016/j.quascirev.2024.108594 |
| Abrupt cooling of cold seasons at the middle-late Holocene transition revealed by alkenone records from North China | |
| 发表日期 | 2024 |
| ISSN | 0277-3791 |
| EISSN | 1873-457X |
| 起始页码 | 330 |
| 卷号 | 330 |
| 英文摘要 | In saline lakes, the paleoenvironmental interpretation of long-chain alkenones (LCAs) is difficult due to the inputs of Isochrysidales Group 2i, which are ice-related bloomers. Here, we perform detailed analysis of LCAs and long-chain alkenoates in sediment cores from Lake Daihai in north China. During the late Holocene, alkenoneinferred temperatures and the Group 2i species abundance indicate a long-term warming trend in cold seasons (winter and early spring), possibly driven by regional insolation and by atmospheric CO2 concentrations. Notably, our records indicate cold climate conditions during the period of 4.3-3.0 cal ka BP, possibly linked to the abrupt expansion of Arctic winter sea ice in a given of low insolation and atmospheric CO2 concentration conditions. The abrupt cooling may have led to the collapse of the East Aian Summer Monsoon (EASM) and the deterioration of the ecosystems in northern China during the middle to late Holocene transition, and thus likely accounted for the nearly synchronous Chinese Neolithic cultural collapses. |
| 英文关键词 | Alkenones; Alkenoates; Temperature reconstruction; Late Holocene; Lake Daihai; Cold seasons |
| 语种 | 英语 |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:001202590000001 |
| 来源期刊 | QUATERNARY SCIENCE REVIEWS
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/293674 |
| 作者单位 | Chinese Academy of Sciences; Institute of Earth Environment, CAS; Lanzhou University; Chinese Academy of Sciences; Institute of Tibetan Plateau Research, CAS; Nanjing Normal University; Chinese Academy of Sciences; Institute of Earth Environment, CAS |
| 推荐引用方式 GB/T 7714 | . Abrupt cooling of cold seasons at the middle-late Holocene transition revealed by alkenone records from North China[J]. 中国科学院青藏高原研究所,2024,330. |
| APA | (2024).Abrupt cooling of cold seasons at the middle-late Holocene transition revealed by alkenone records from North China.QUATERNARY SCIENCE REVIEWS,330. |
| MLA | "Abrupt cooling of cold seasons at the middle-late Holocene transition revealed by alkenone records from North China".QUATERNARY SCIENCE REVIEWS 330(2024). |
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