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アイテム
東北地方の地殻・上部マントルのP波及びS波3次元速度構造
https://doi.org/10.15083/0000032624
https://doi.org/10.15083/00000326242788922c-a865-440b-9b6c-eea082e40b83
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ji0761003.pdf (3.1 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-05-30 | |||||
| タイトル | ||||||
| タイトル | 東北地方の地殻・上部マントルのP波及びS波3次元速度構造 | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Structure | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Tomography | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Tohoku | |||||
| 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 | 10.15083/0000032624 | |||||
| ID登録タイプ | JaLC | |||||
| その他のタイトル | ||||||
| その他のタイトル | Three-dimensional P- and S-wave velocity structure beneath northeast Japan from travel time analyses | |||||
| 著者 |
萩原, 弘子
× 萩原, 弘子× 平田, 直× 松原, 誠 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 126332 | |||||
| 姓名 | Hagiwara, Hiroko | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 126333 | |||||
| 姓名 | Hirata, Naoshi | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 126334 | |||||
| 姓名 | Matsubara, Makoto | |||||
| 著者所属 | ||||||
| 値 | 東京大学地震研究所 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We obtained a new model of three-dimensional (3-D) P- and S-wave velocity structures in the central part of Tohoku District, northeastern Japan, using data obtained from temporary seismic observations with a satellite communication telemeter system. The observations were part of the Joint Seismic Observations in the Tohoku area during the period from October 1997 to June 2000. We used the arrival time data to estimate 3-D P-wave velocity (Vp) and S-wave velocity (Vs) structures. We inverted 23,590 P- and 13,313 S-wave arrival times from 396 local and regional earthquakes recorded by 108 stations. Then we determined Vp, Vs, and Vp/Vs models in and around the backbone range of the Tohoku district by applying a seismic tomography method to the arrival time data. The velocity distribution obtained shows strong lateral heterogeneities in the crust and the uppermost mantle, which vary with a wavelength of 10 to 20 km in the east-west direction. The structure has a north-south strike in general. Low Vp and Vs anomalies are visible under the Quaternary volcanoes. High Vp/Vs zones are also revealed in the lower crust beneath the volcanoes. A high Vs and low Vp/Vs anomaly was found in the Kitakami Massif. | |||||
| 書誌情報 |
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo 巻 76, 号 1, p. 23-35, 発行日 2001-07-25 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 00408972 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00162258 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 453 | |||||
| 出版者 | ||||||
| 出版者 | 東京大学地震研究所 | |||||
| 出版者別名 | ||||||
| 値 | Earthquake Research Institute, University of Tokyo | |||||
