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العنوان
Study Of Neotectonics In The Gulf Of Aqaba,Red Sea,As Revealed from Marine Geophysical Data =
المؤلف
Hamouda, Amr Zakaria Mohamoud.
هيئة الاعداد
مشرف / محمد الغمرى
مشرف / محمد عوض
مشرف / ياسر العبد
مشرف / احمد عبد العال
الموضوع
Neotectonics - Gulf Aqaba - Read Sea. Geophysical.
تاريخ النشر
2000.
عدد الصفحات
272 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الفيزياء وعلم الفلك
تاريخ الإجازة
1/1/2000
مكان الإجازة
جامعة الاسكندريه - كلية العلوم - Geology
الفهرس
Only 14 pages are availabe for public view

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Abstract

This study is focused on the activity of neotectonics in the gulf of
Aqaba, which helps in the understanding of their fundamental origins and
explains the concepts of tectonic hazards.
Bathymetric data from R/V Meteor and seismicity data from a network
of (20 ) temporary and permanent stations deployed for 12 months were
combined with existing magnetic and gravity data to examine the neotectonics
of the Gulf of Aqaba. A little understood region which links •the Red Sea a
new ocean with Dead Sea transform. The bathymetric map showed 3 en
echelon elongated basins. In the north is the Elat deep (50 km by 3-8 km and
depth up to 900 m); the central region includes the Aragonese (6-8 km by
1800 m) and Amona (4-5 km by 1 km by 1550m) deeps; and the southern
basin (4.5 km by 1 km) includes the Dakar and Tiran deeps at depths of 1400
m and l300 m.
The polynomial fitting teclmique is used to separate the regional and
residual components. Two dimensional modeling is used to estimate the
crustal thickness. The earthquake energy accumulation and stress DROP
analysis is used to understand the rupture mechanism.
Accordingly, different structural maps, structural models and seismic
activity maps have been constructed by the writer. The results are:
(a). The asymmetry of the crustal thickness between eastern and western
borders of the Gulf of Aqaba could be attributed to a simultaneous strike
slip motion. The observed displacement along the Moho discontinuity
between the two borders may be about 20.4 km. Accordingly, the
transform fault displacement in the gulf could be achieved in about 3.8 to
4.08 (million year) M.y, where the rates of the transform motion is about
0.5 to 0.6 cm/y. This displacement may be related.