Paleomagnetism of some Syrian Arcs in North Sinai and Eastern Desert, Egypt ; Tectonic implications

The palaeomagnetic characteristics of rocks from three Syrian arcs in Sinai and north Eastern Desert have been investigated. Rocks of Triassic, Jurassic and Lower Cretaceous ages were collected from Arif El-Naqa (NE Sinai), Maghara (N Sinai) and Shabrawet (north Eastern Desert) anticlines, respectiv...

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Bibliographic Details
Main Authors: Kafafy Aziz Mahfouz
Abdeldayem Abdelaziz Lotfy Abdelaziz
Format: Article
Published: University of Szeged, Department of Mineralogy, Geochemistry and Petrology Szeged 1993
Series:Acta mineralogica-petrographica 34
Kulcsszavak:Kőzettan, Ásványtan, Földtan
Subjects:
Online Access:http://acta.bibl.u-szeged.hu/24812
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245 1 0 |a Paleomagnetism of some Syrian Arcs in North Sinai and Eastern Desert, Egypt ; Tectonic implications  |h [elektronikus dokumentum] /  |c  Kafafy Aziz Mahfouz 
260 |a University of Szeged, Department of Mineralogy, Geochemistry and Petrology  |b Szeged  |c 1993 
300 |a 79-98 
490 0 |a Acta mineralogica-petrographica  |v 34 
520 3 |a The palaeomagnetic characteristics of rocks from three Syrian arcs in Sinai and north Eastern Desert have been investigated. Rocks of Triassic, Jurassic and Lower Cretaceous ages were collected from Arif El-Naqa (NE Sinai), Maghara (N Sinai) and Shabrawet (north Eastern Desert) anticlines, respectively. The studied rocks were subjected to AF and/or thermal demagnetization and found carrying a stable secondary magnetization. This magnetization may have been acquired during the late stage of folding in the Upper Cretaceous-Lower Tertiary time. A chemical origin is proposed for the isolated remanent magnetization as a result of recrystallization of the magnetic.carriers.that might have taken place due to folding forces. When the isolated characteristic remanent directions were compared to the expected ones; for each area they suggest magnetotectonic models for the studied areas. According to these models, both, Arif El-Naqa andMaghara anticlines seem to have been dragged to the SE as a result:of.thrusting:.On the other hand, the Shabrawet anticline seem to have a different tectonic attitude where block rotations around vertical axis might be responsible for the resultant deviated palaeomagnetic directions: The, proposed models were geologically tested and found feasible and provide a simple explanation; for. the obtained palaeomagnetic data. 
650 4 |a Természettudományok 
650 4 |a Föld- és kapcsolódó környezettudományok 
695 |a Kőzettan, Ásványtan, Földtan 
700 0 1 |a Abdeldayem Abdelaziz Lotfy Abdelaziz  |e aut 
856 4 0 |u http://acta.bibl.u-szeged.hu/24812/1/mineralogica_034_079-098.pdf  |z Dokumentum-elérés