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Paleomagnetic study of marine sediments from Antarctic Sea-Central Wilkes Land margin, Dumon d'Urville Sea and Victoria Land Basin-
https://doi.org/10.15094/00003030
https://doi.org/10.15094/000030305952f888-605a-47b2-8c51-c2efd0a4cfaa
名前 / ファイル | ライセンス | アクション |
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KJ00000044147 (2.1 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1998-10-01 | |||||
タイトル | ||||||
タイトル | Paleomagnetic study of marine sediments from Antarctic Sea-Central Wilkes Land margin, Dumon d'Urville Sea and Victoria Land Basin- | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | magnetization of sedimentary cores | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | geomagnetic polarity reversals | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Antarctic Sea | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Brunhes/Matuyama boundary | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | secular change of geomagnetic intensity | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00003030 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
論文名よみ | ||||||
その他のタイトル | Paleomagnetic study of marine sediments from Antarctic Sea-Central Wilkes Land margin, Dumon d'Urville Sea and Victoria Land Basin- | |||||
著者名(英) |
Sakai,Hideo
× Sakai,Hideo× Kikawa,Eiichi× Ishihara,Takemi× Kobayashi,Hironori× Komori,Kiyoshi× Sunagawa,Aiko |
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著者所属(英) | ||||||
en | ||||||
Department of Earth Sciences, Faculty of Science, Toyama University/Global Environmental Laboratory, Faculty of Education, Toyama University/Marine Geology Department, Geological Survey of Japan/Department of Earth Sciences, Faculty of Science, Toyama University/Global Environmental Laboratory, Faculty of Education, Toyama University/Global Environmental Laboratory, Faculty of Education, Toyama University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Paleomagnetic study is conducted on sediment cores from the Antarctic Ocean off the Central Wilkes Land margin, the Dumont d'Urville Sea and Victoria Land Basin The Brunhes/Matuyama geomagnetic polarity boundary (B/M boundary, 0 78 Ma) and the Jaramillo geomagnetic event (0 99-1 07 Ma) are identified in five cores at the Central Wilkes Land margin One core from the Victoria Land Basin shows the B/M boundary The assigned magnetostratigraphical age indicates the sedimentation rate of between 3 and 5 mm/ky The susceptibility variation with depth is studied The upper sequence younger than 0 4 Ma shows variation with larger amplitude than that of the lower sequence, however, the average and frequency dependence of susceptibility do not show distinct changes This suggests a change of sedimentary environment around 0 4 Ma, which may be correlated with the global climate change The magnetic intensity normalized by susceptibility shows a distinct decrease around B/M boundary, the intensity is higher in the Brunhes epoch than that in the Matuyama epoch The result is similar to the variation of geomagnetic dipole moment studied by J P VALET and L MEYNADIER (Nature, 366, 234, 1993) on the ODP cores from the Pacific Ocean This suggests that there was a global change of geomagnetic field intensity, between the Matuyama reversed epoch and the Brunhes normal epoch | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1130866X | |||||
書誌情報 |
Polar geoscience 巻 11, p. 222-238, 発行日 1998-10 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |