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GPS-derived Velocity and Crustal Strain Field in the Suez-Sinai Area, Egypt
https://doi.org/10.15083/0000032530
https://doi.org/10.15083/0000032530a2f938bd-4c01-4984-ae23-cccc72482715
名前 / ファイル | ライセンス | アクション |
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IHO80202.pdf (6.3MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-04-23 | |||||
タイトル | ||||||
タイトル | GPS-derived Velocity and Crustal Strain Field in the Suez-Sinai Area, Egypt | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Sinai Peninsula | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | Gulf of Suez | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | Gulf of Aqaba | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | GPS measurements | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | crustal strains | |||||
主題Scheme | Other | |||||
キーワード | ||||||
主題 | least-squares prediction | |||||
主題Scheme | Other | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/0000032530 | |||||
ID登録タイプ | JaLC | |||||
その他のタイトル | ||||||
その他のタイトル | GPS観測によって求められるスエズ・シナイ地域(エジプト)の地殻ひずみ場 | |||||
著者 |
Gamal, El-Fiky
× Gamal, El-Fiky |
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著者別名 | ||||||
識別子 | 125311 | |||||
識別子Scheme | WEKO | |||||
姓名 | ガマル, エルフィキ | |||||
著者所属 | ||||||
著者所属 | Construction Eng. & Utilities Department, Faculty of Eng., Zagazig University, Zagazig, Egypt | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Five GPS measurements collected in campaign mode during the period 1997~2002 are analyzed to derive velocity vectors and principal components of crustal strains along the Gulf of Suez and in the southern part of the Sinai Peninsula, Egypt. Estimated horizontal velocity vectors in ITRF2000 are found to be in the range of 29~35mm/yr with an uncertainty level in the order of 1~2mm/yr (95% confidence level). Then, estimated velocities are converted into a kinematic reference frame (Prawirodirdjo and Bock, 2004) to discuss crustal deformation relative to the Eurasian plate. Least-Squares prediction (LSP) technique is employed to segregate signal and noise from velocity vectors. Estimated signals are used to reconstruct strains, dilatations, maximum shear strains, and principal axes of strains. Strains obtained might portray active tectonic environments in the region under study. (1) Dilatational strains indicate that the region under study is mainly divided into two areas : the western part around the Gulf of Suez where extensional strain is predominant, and the eastern part around the Gulf of Aqaba where compressional strains prevail. (2) Maximum shear strain is mostly accommodated at the Gulf of Suez and Gulf of Aqaba. Distribution of seismicity shows high consistency with high shear strain areas. The estimated dilatation strain rate and the maximum shear strain rate are both 0.25 Micro-strain/yr on average. (3) Principal axes of the strains indicate that an extensional force is acting along the Gulf of Suez in the NE-SW direction. Moreover, the principal axes of strains show a good correlation with the SHmax directions obtained from earthquake focal mechanisms and borehole breakouts. | |||||
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 80, 号 2, p. 73-86, 発行日 2005 |
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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 | 51.1 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | 東京大学地震研究所 | |||||
出版者別名 | ||||||
Earthquake Research Institute, University of Tokyo |