A study of crustal deformation along the Red Sea region using geodetic and seismic data from Egypt and Yemen

• Autorzy: Sakr K. , Abdel-Monem S.M. , Khalil H. , Mahmoud S. , Hamimi Z. , Al-Aydrus A. , Al Subbary A. , Al-Kottbah A. , Al-Gabary A. , Al-Wosabi M. A. , El Ganad I.
• Języki publikacji: EN

Abstrakty

EN

Monitoring of recent crustal deformation was carried out using GPS observations to detect the present-day styles and rates of extension, as well as riftmargin deformation along the extent of the Red Sea rift. For studying the crustal deformation along the Red Sea Region and Gulf of Aden, 12 geodetic stations were established to cover some areas in Egypt and Yemen. The GPS measurements were carried out in April 2000 and November 2001. Analysis of the first and second campaigns of GPS measurements indicates that the magnitude of movements together with the strain parameters is small, but the magnitude of displacement may reach up to 20 mm in some points close to the Red Sea, such as those in Hodeidah (Yemen) and Dahab (Egypt). Moreover, the direction of movement on these points is opposite to each other. Such results are in harmony with the general trend of the tectonics in the Red Sea region. Separate analyses of GPS measurements on geodetic points in Yemen relative to each other show a rate of displacement of about 3 mm. The direction of movement on Sana'a is SW and on Aden is NE.

Słowa kluczowe

EN

crustal movements; GPS data; seismic activity; Red Sea region

• Wydawca: Instytut Geofizyki PAN
• Czasopismo: Acta Geophysica Polonica
• Rocznik: 2005
• Tom: Vol. 53, nr 1
• Strony: 75--85
• Opis fizyczny: Bibliogr. 11 poz.

Twórcy

autor

Sakr K.

• National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt

autor

Abdel-Monem S.M.

• National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt

autor

Khalil H.

• National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt

autor

Mahmoud S.

• National Research Institute of Astronomy and Geophysics, Helwan, Cairo, Egypt

autor

Hamimi Z.

• Faculty of Science, Banha University, Banha, Egypt

autor

Al-Aydrus A.

• Department of Earth and Environmental Sciences, Sana'a University, Sana'a, Yemen

autor

Al Subbary A.

• Department of Earth and Environmental Sciences, Sana'a University, Sana'a, Yemen

autor

Al-Kottbah A.

• Department of Earth and Environmental Sciences, Sana'a University, Sana'a, Yemen

autor

Al-Gabary A.

• Department of Earth and Environmental Sciences, Sana'a University, Sana'a, Yemen

autor

Al-Wosabi M. A.

• Department of Earth and Environmental Sciences, Sana'a University, Sana'a, Yemen

autor

El Ganad I.

• Authority of Geological Survey and Mineral Resources, Sana'a, Yemen

Bibliografia

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• Natural Resources Project (NRP), 1992, Technical Report; Robertson Group PIC and DG. A joint AFESD and UNDP Project, Ministry of Oil and Mineral Resources, Yemen Republic.
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• Vyskočil, P., 1984, Procedures for monitoring recent crustal movements, Part 1, ICRCM, ZDIBY, Prague, No. 98.