Long-chain alkenones in sulfate lakes and its paleoclimatic implications
文献类型：期刊论文
| 作者 | Sun, D; Chu, GQ; Li, SQ; Lu, CF; Zheng, MP |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2004-10-01 |
| 卷号 | 49期号:19页码:2082-2086 |
| 关键词 | sulfate lake long-chain alkenone U-37(K) temperature |
| ISSN号 | 1001-6538 |
| DOI | 10.1360/03wd0298 |
| 文献子类 | Article |
| 英文摘要 | The proxy of U-37(K') index is widely applied to reconstructing paleotemperature in the marine environment. However, the long-chain alkenones (LCAs) research is rarely reported in the liminic system. In this paper, we studied LCAs in the surface sediments (0-10 cm) of nine sulfate lakes in the Inner Mongolia Autonomous Region, Xinjiang Uygur Autonomous Region and Qinghai Province, China. LCAs are detected in eight of the nine lakes, except a dry salt lake - Lake Lop. The result shows that LCAs might be universal in the sulfate lakes. In most of the surface samples, the sequence of the abundance of the long-chain alkenones is C-37>C-38>C-39>C-40. And C-37:4 methyl ketone is a predominant compound in the C-37 alkenone homologue. Based on regression analysis of U-37(K')-ratios and the average annual, seasonal (spring, summer, autumn, winter) temperatures, the linear relativity of U-37(K')-ratios and mean annual temperatures is superior to the others, and the correlation coefficient is 0.88 2 (r(2) = 0.88). The linear relationship of U-37(K') and the average annual temperature in different water chemistry environments suggests that the mechanisms controlling U-37(K') index in the saline lakes might be the same as those in the ocean environment. The alkenone unsaturation could become an important paleotemperature proxy in the lacustrine environment. |
| WOS关键词 | SEA-SURFACE TEMPERATURE ; SEDIMENTS ; DISTRIBUTIONS ; DELTA-O-18 |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000225725000014 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79829]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Sun, D |
| 作者单位 | 1.Natl Res Ctr Geoanal, Beijing 100037, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.CSB, Ctr Anal & Predict, Beijing 100036, Peoples R China 4.Chinese Acad Geol Sci, Inst Mineral Resources, Beijing 100037, Peoples R China 5.Chinese Acad Geol Sci, Open Lab Saline Lake Resources & Environm, Beijing 100037, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, D,Chu, GQ,Li, SQ,et al. Long-chain alkenones in sulfate lakes and its paleoclimatic implications[J]. CHINESE SCIENCE BULLETIN,2004,49(19):2082-2086. |
| APA | Sun, D,Chu, GQ,Li, SQ,Lu, CF,&Zheng, MP.(2004).Long-chain alkenones in sulfate lakes and its paleoclimatic implications.CHINESE SCIENCE BULLETIN,49(19),2082-2086. |
| MLA | Sun, D,et al."Long-chain alkenones in sulfate lakes and its paleoclimatic implications".CHINESE SCIENCE BULLETIN 49.19(2004):2082-2086. |
入库方式： OAI收割
来源：地质与地球物理研究所
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