| 长链烯酮及U37k值在北极海洋古温度的应用研究 |
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| 引用本文： | 卢冰,陈荣华,王自磐,陈建芳,刘镇盛. 长链烯酮及U37k值在北极海洋古温度的应用研究[J]. 海洋学报, 2001, 23(5): 49-57 |
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| 作者姓名： | 卢冰 陈荣华 王自磐 陈建芳 刘镇盛 |
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| 作者单位： | 国家海洋局海底科学重点实验室, 国家海洋局第二海洋研究所, 浙江, 杭州, 310012 |
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| 基金项目： | 中国首次北极科学考察资助项目;国家重点基础研究发展规划资助项目(G2000078503) |
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| 摘 要： | 在北极楚科奇海和白令海表层沉积物中检出长链烯酮化合物,研究结果表明楚科奇海和白令海沉积物中长链烯酮以C37:3甲基酮占优势,C37～C39不饱和烯酮丰度变化顺序为C37>C38>C39.根据∑C37/∑C38比值,所检出的长链烯酮母质生物主要是颗石藻(Emiliania huxleyi).应用U37k和U37k'标准校正关系式估算了表层海水古温度,其中U37k'估算值为4.147～5.706℃(平均为5.092℃).
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| 关 键 词： | 北极 长链烯酮 U37k 古温度 |
| 文章编号： | 0253-4193(2001)05-0049-09 |
| 收稿时间： | 2000-11-21 |
| 修稿时间： | 2000-11-21 |
Long-chain alkenones and their application study on the paleo-temperature of U37k values in the Arctic Ocean |
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| LU Bing,CHEN Rong-hu,WANG Zi-pan,CHEN Jian-fang and LIU Zhen-sheng. Long-chain alkenones and their application study on the paleo-temperature of U37k values in the Arctic Ocean[J]. Acta Oceanologica Sinica (in Chinese), 2001, 23(5): 49-57 |
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| Authors: | LU Bing CHEN Rong-hu WANG Zi-pan CHEN Jian-fang LIU Zhen-sheng |
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| Affiliation: | Key Lab of Submarine Geoscience, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China |
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| Abstract: | Long-chain alkenone compounds have been first detected in surface sediments from the Chukchi Sea and the Bering Sea in the Arctic.The result shows that C37:3 methy alkenones predominate in the Arctic.Abundances of C37～C39 methy and ethyl alkenones change in or der of C37>C38>C39.The ratio between total abundances of C37 and C38 alkenone(∑C37/∑C38) may indicate the production ratio of alkenones derived from the coceolithophrid (Emiliania huxleyi).Calibration of alkenone unsaturation ratios(U37k and U37k') is used to estimate paleotemperature,U37k-T is used to the indication of SST range from 4.147 to 5.706℃ (average value is 5.092℃). |
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| Keywords: | Arctic long-chain alkenone U37k paleotemperature |
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