Pollen and spores from the perennial sea-ice covered environment of the central Arctic Ocean, summer 2004 (IODP ACEX 302)

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Pollen and spores from the perennial sea-ice covered environment of the central Arctic Ocean, summer 2004 (IODP ACEX 302)

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Article
Kyushu Univ. Production Kyushu Univ. Production
Responsibility:
Tsutsui, Hideto(Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University)
Takahashi, Kozo(Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University)
Fowell, Sarah J.(Department of Geology and Geophysics, University of Alaska Fairbanks)

筒井, 英人(九州大学大学院理学研究院地球惑星科学部門)
高橋, 孝三(九州大学大学院理学研究院地球惑星科学部門)

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Language:
English
Publication info:
Memoirs of the Faculty of Science, Kyushu University. Series D, Earth and planetary sciences. 32, (2), pp. 45-56, 2009-03-02. Faculty of Science, Kyushu University
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Publisher
Abstract:
We obtained three different types of samples from the central Arctic Ocean during the IODP Arctic Coring Expedition (ACEX) 302, which took place during summer 2004: they are (1) sea water, (2) sea-ice, and (3) diatom mat samples. A total of 227 specimens of pollen and spores as well as 52 pollen fragments were found in the samples. Dominant pollen taxa are vesiculate: Pinus (pines, “Matsu” in Japanese), Picea (spruce, “Touhi” in Japanese) and Abies (fir, “Momi” in Japanese). Porate pollen and monolete spores were also found, but their populations were very small. Most of the pollen grains encountered were from the sea water sample type, whereas in sea-ice or diatom mat samples pollen grains were very rare. It is most likely that these pollen grains were transported via the Arctic Current rather than via atmospheric pathways, such as the geostrophic wind. Read more
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