Item type |
学術雑誌論文 / Journal Article(1) |
公開日 |
2021-11-30 |
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タイトル |
Paleoclimatic and paleoceanographic records through Marine Isotope Stage 19 at the Chiba composite section, central Japan: A key reference for the EarlyeMiddle Pleistocene Subseries boundary |
言語 |
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言語 |
eng |
DOI |
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関連タイプ |
isIdenticalTo |
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関連識別子 |
https://doi.org/10.1016/j.quascirev.2018.04.022 |
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関連名称 |
10.1016/j.quascirev.2018.04.022 |
キーワード |
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主題 |
Marine Isotope Stage (MIS) 19, Oxygen isotope (d18O) stratigraphy Pollen |
資源タイプ |
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資源 |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
著者 |
Suganuma, Yusuke
Haneda, Yuki
Kameo, Koji
Kubota, Yoshimi
Hayashi, Hiroki
Itaki, Takuya
Okuda, Masaaki
J. Head, Martin
Sugaya, Manami
Nakazato, Hiroomi
Igarashi, Atsuo
Shikoku, Kizuku
Hongo, Misao
Watanabe, Masami
Satoguchi, Yasufumi
Takeshita, Yoshihiro
Nishida, Naohisa
Izumi, Kentaro
Kawamura, Kenji
Kawamata, Moto
Okuno, Jun'ichi
Yoshida, Takeshi
Ogitsu, Itaru
Yabusaki, Hisashi
Okada, Makoto
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信州大学研究者総覧へのリンク |
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氏名 |
竹下, 欣宏 |
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URL |
https://soar-rd.shinshu-u.ac.jp/profile/ja.jVAajVkh.html |
出版者 |
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出版者 |
Elsevier |
引用 |
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内容記述 |
Quaternary Science Reviews 191: 406-430(2018) |
書誌情報 |
Quaternary Science Reviews
巻 191,
p. 406-430,
発行日 2018-05-29
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抄録 |
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内容記述 |
Marine Isotope Stage (MIS) 19 is an important analogue for the present interglacial because of its similar orbital configuration, especially the phasing of the obliquity maximum to precession minimum. However, sedimentary records suitable for capturing both terrestrial and marine environmental changes are limited, and thus the climatic forcing mechanisms for MIS 19 are still largely unknown. The Chiba composite section, east-central Japanese archipelago, is a continuous and expanded marine sedimentary succession well suited to capture terrestrial and marine environmental changes through MIS 19. In this study, a detailed oxygen isotope chronology is established from late MIS 20 to early MIS 18, supported by a U-Pb zircon age and the presence of the Matuyama–Brunhes boundary. New pollen, marine microfossil, and planktonic foraminiferal δ18O and Mg/Ca paleotemperature records reveal the complex interplay of climatic influences. Our pollen data suggest that the duration of full interglacial conditions during MIS 19 extends from 785.0 to 775.1 ka (9.9 kyr), which offers an important natural baseline in predicting the duration of the present interglacial. A Younger Dryas-type cooling event is present during Termination IX, suggesting that such events are linked to this orbital configuration. Millennial- to multi-millennial-scale variations in our δ18O and Mg/Ca records imply that the Subarctic Front fluctuated in the northwestern Pacific Ocean during late MIS 19, probably in response to East Asian winter monsoon variability. The climatic setting at this time appears to be related to less severe summer insolation minima at 65˚N and/or high winter insolation at 50˚N. Our records do not support a recently hypothesized direct coupling between variations in the geomagnetic field intensity and global/regional climate change. Our highly resolved paleoclimatic and paleoceanographic records, coupled with a well-defined Matuyama–Brunhes boundary (772.9 ka; duration 1.9 kyr), establish the Chiba composite section as an exceptional climatic and chronological reference section for the Early–Middle Pleistocene boundary. |
資源タイプ(コンテンツの種類) |
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内容記述 |
Article |
ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0277-3791 |
書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA10627786 |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |