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

Kafafy Aziz Mahfouz; Abdeldayem Abdelaziz Lotfy Abdelaziz: Paleomagnetism of some Syrian Arcs in North Sinai and Eastern Desert, Egypt ; Tectonic implications. In: Acta mineralogica-petrographica, (34). pp. 79-98. (1993)

[thumbnail of mineralogica_034_079-098.pdf]
Előnézet
Cikk, tanulmány, mű
mineralogica_034_079-098.pdf

Letöltés (996kB) | Előnézet

Absztrakt (kivonat)

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.

Mű típusa: Cikk, tanulmány, mű
Befoglaló folyóirat/kiadvány címe: Acta mineralogica-petrographica
Dátum: 1993
Kötet: 34
ISSN: 0365-8066
Oldalak: pp. 79-98
Nyelv: angol
Kiadó: University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Kiadás helye: Szeged
Befoglaló mű URL: http://acta.bibl.u-szeged.hu/39412/
Kulcsszavak: Kőzettan, Ásványtan, Földtan
Megjegyzések: Bibliogr.: p. 97-98. ; ill. ; összefoglalás angol nyelven
Szakterület: 01. Természettudományok
01. Természettudományok > 01.05. Föld- és kapcsolódó környezettudományok
Feltöltés dátuma: 2016. okt. 17. 09:25
Utolsó módosítás: 2022. júl. 27. 10:17
URI: http://acta.bibl.u-szeged.hu/id/eprint/24812
Bővebben:
Tétel nézet Tétel nézet