| Lu Bing,Chen Ronghua,Wang Zipan,Chen Jianfang,Liu Zhensheng. 2001. Application of long-chain alkenones and U37k values for paleotemperature estimation in the Arctic Chukchi Sea-Bering Sea area. Acta Oceanologica Sinica, (3):371－381 |
| Application of long-chain alkenones and U37k values for paleotemperature estimation in the Arctic Chukchi Sea-Bering Sea area |
| Application of long-chain alkenones and U37k values for paleotemperature estimation in the Arctic Chukchi Sea-Bering Sea area |
| Received:June 04, 2001 Revised:July 20, 2001 |
| DOI： |
| Key words:Long-chain alkenone SST U37k the Chukchi Sea the Bering Sea paleotemperature |
| 中文关键词: Long-chain alkenone SST U37k the Chukchi Sea the Bering Sea paleotemperature |
| 基金项目:This study was supported by the First Chinese National Scientific Observation for the Arctic;the Development Program of NKBRSF under contract No.G2000078500. |
| Author Name | Affiliation | | Lu Bing | Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | Chen Ronghua | Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | Wang Zipan | Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | Chen Jianfang | Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | Liu Zhensheng | Key Laboratory of Submarine Geosciences, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China |
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| Abstract: |
| Long-chain alkenones were detected in samples of sea surface sediments from the Chukchi Sea and the Bering Sea areas,the Arctic Pole.The analysis result indicates that C37:3 methylketone is predominate in the long-chain alkenones from the Chukchi and Bering Sea sediments.The abundance of C37 to C39 unsaturated alkenones changes in an order of C37 > C38 > C39.Based on ∑C37/∑C38 ratio,the detected organism precursors of the long-chain alkenones are mainly coccolithophrid (Emiliania huxleyi).By the calibration relationship between U37k and U37k indices,the sea surface paleotemperature in these seas is estimated.The estimated values of U37k vary from 4.147℃ to 5.706℃,with a mean value of 5.092℃. |
| 中文摘要: |
| Long-chain alkenones were detected in samples of sea surface sediments from the Chukchi Sea and the Bering Sea areas,the Arctic Pole.The analysis result indicates that C37:3 methylketone is predominate in the long-chain alkenones from the Chukchi and Bering Sea sediments.The abundance of C37 to C39 unsaturated alkenones changes in an order of C37 > C38 > C39.Based on ∑C37/∑C38 ratio,the detected organism precursors of the long-chain alkenones are mainly coccolithophrid (Emiliania huxleyi).By the calibration relationship between U37k and U37k indices,the sea surface paleotemperature in these seas is estimated.The estimated values of U37k vary from 4.147℃ to 5.706℃,with a mean value of 5.092℃. |
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