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CRUSTAL VELOCITY MODELS OF SHEAR WAVES IN EAST ANTARCTICA BY RECEIVER FUNCTION INVERSION OF BROADBAND WAVEFORMS
https://doi.org/10.15094/00002819
https://doi.org/10.15094/00002819500dd357-2fd8-4e7f-a24d-22880a3e966d
名前 / ファイル | ライセンス | アクション |
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KJ00002409866 (1.6 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1996-09-01 | |||||
タイトル | ||||||
タイトル | CRUSTAL VELOCITY MODELS OF SHEAR WAVES IN EAST ANTARCTICA BY RECEIVER FUNCTION INVERSION OF BROADBAND WAVEFORMS | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | broadband waveforms | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | teleseismic receiver functions | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | shear wave velocity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | crustal structure | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | regional metamorphism | |||||
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 | 10.15094/00002819 | |||||
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 | CRUSTAL VELOCITY MODELS OF SHEAR WAVES IN EAST ANTARCTICA BY RECEIVER FUNCTION INVERSION OF BROADBAND WAVEFORMS | |||||
著者名よみ |
カナオ, マサキ
× カナオ, マサキ× クボ, アツキ× シブタニ, タクオ |
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著者名(英) |
KANAO, Masaki
× KANAO, Masaki× KUBO, Atsuki× SHIBUTANI, Takuo |
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著者所属(英) | ||||||
言語 | en | |||||
値 | National Institute of Polar Research | |||||
著者所属(英) | ||||||
言語 | en | |||||
値 | National Institute of Polar Research | |||||
著者所属(英) | ||||||
言語 | en | |||||
値 | Disaster Prevention Research Institute, Kyoto University | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Receiver functions from teleseismic earthquakes recorded with broadband seismographs at Dumont d'Urville Station (66.7°S, 140.0°E; DRV) and Mawson Station (67.6°S, 62.9°E; MAW), East Antarctica, are inverted for shear wave velocity models of the crust and uppermost mantle beneath the recording stations. The obtained models are compared with the previously obtained ones of Syowa Station (69.0°S, 39.6°E; SYO) to clarify the relationship with regional tectonic history. A crustal velocity model around DRV derived from 18 events indicates a rather sharp Moho at a depth of 38km and somewhat less fluctuation within the crust. It might have originated in the Early Proterozoic metamorphism in Adelie Land. High velocity zones in the upper crust together with low velocity discontinuity of the mid-crust may also have a relation to past tectono-thermal activity. A crustal velocity model around MAW determined by using 20 events has a very sharp Moho at 42km depth that might have developed under high pressure and a thickened crust when a metamorphic event occurred around Mac. Robertson Land in the Late Proterozoic ages. Variation in the crustal velocities at MAW is intermediate among the three stations, which may also have been created by the regional metamorphism. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA1072335X | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Antarctic Geosciences 巻 9, p. 1-15, 発行日 1996-09 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |