| Cycladophora davisiana (Radiolarian) in the Bering Sea during the late Quaternary: A stratigraphic tool and proxy of the glacial Subarctic Pacific Intermediate Water |
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| 作者姓名： | WANG Rujian & CHEN Ronghua . State Key Laboratory of Marine Geology Tongji University Shanghai China . The Key Laboratory of Submarine Geoscience State Oceanic Administration Hangzhou China |
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| 作者单位： | WANG Rujian1 & CHEN Ronghua2 1. State Key Laboratory of Marine Geology，Tongji University，Shanghai 200092，China; 2. The Key Laboratory of Submarine Geoscience，State Oceanic Administration，Hangzhou 310012，China |
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| 基金项目： | the NKBRSF Project of China，国家自然科学基金，the Foundation for the Author of National Excellent Doctoral Dissertation of China，教育部高校骨干教师资助计划，the Foundation for University Key Teachers，Ministry of Education of China |
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| 摘 要： | The Bering Sea, located in the Subarctic Northern Pacific Ocean, plays an important role in the global carbon cycle and modern and past global climatic sys-tems, which originates from a very effective biological pump, indicating much higher biogenic opal produc-tion than calcium carbonate1]. Measured biological particular fluxes show that the flux in the Bering Sea is twice over that in the open ocean. Thereby, the Ber-ing sea is thought as a CO2 sink2]. At the same time, the Bering Sea…
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Cycladophora davisiana (Radiolarian) in the Bering Sea during the late Quaternary: A stratigraphic tool and proxy of the glacial Subarctic Pacific Intermediate Water |
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| WANG Rujian & CHEN Ronghua . State Key Laboratory of Marine Geology,Tongji University,Shanghai ,China, . The Key Laboratory of Submarine Geoscience,State Oceanic Administration,Hangzhou ,China.Cycladophora davisiana (Radiolarian) in the Bering Sea during the late Quaternary: A stratigraphic tool and proxy of the glacial Subarctic Pacific Intermediate Water[J].Science in China(Earth Sciences),2005,48(10). |
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| Authors: | WANG Rujian CHEN Ronghua |
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| Affiliation: | 1. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
2. The Key Laboratory of Submarine Geoscience, State Oceanic Administration, Hangzhou 310012, China |
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| Abstract: | Cycladophora davisiana (Radiolarian) contents are counted in two cores of the Ber-ing Sea and correlated well with the oxygen isotopic records of ice in the deep core obtained by the Greenland Ice Sheet Project II (GISP 2) and deep-sea sediments (SPECMAP) of the world oceans. Millennial scale climatic events, for example, Younge Dryas and B?lling/Aller?d events, Heinrich1 and Dansgaard-Oeschger1events, recorded by C. davisiana percents are distin-guished from Core B4-2. C. davisiana events b, c1, c2, d, e1 and e2, respectively, corresponding to oxygen isotopic 2.0, 3.1, 3.3, 4.0, 5.1 and 5.3, are identified from Core B2-9. High resolution re-cords of C. davisian are tuned to the oxygen isotopic records in GISP 2 and SPECMAP and the depth-age frameworks are established in the two cores, supplying a stratigraphic base for future paleoceanographic and paleoclimatic studies. High C. davisiana during the glacial periods in the two cores indicate that they can serve as a proxy of the glacial Subarctic Pacific Intermediate Water, which verifies the glacial Subarctic Pacific Intermediate Water brought from the Bering Sea. |
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| Keywords: | Cycladophora davisiana stratigraphic tool YD and B/A events Heinrich 1 and D/O1 events proxy of glacial Subarctic Pacific Intermediate Water late Quaternary Bering Sea |
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