الفهرس 
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Abstract
The northernmost of the Neoproterozoic Arabian-Nubian Shield (ANS)
comprises a volcano-sedimentary metamorphic complexes evolved during the Pan
African Orogeny. While these ”complexes” are well entrenched as separate regions of
metamorphic rocks in the literature, the distinction among them is largely based on the
fact that they are located in different areas (some tens of kilometres apart) and are
separated by extensive regions of post-tectonic granitoids. Here we propose that their
relationship may be understood within the same framework of Pan-African tectonics as
known for the Eastern Desert of Egypt. Because of the separation of the metamorphic
complexes by expansive areas of undeformed granitoids, the relationship among the
different metamorphic regions is not as straight forward to understand as it is in the
Eastern Desert of Egypt. In this thesis we try to understand the relationship among the
metamorphic complexes in south Sinai by comparing their structural characteristics and
metamorphic grade.
The present study reveals that the south Sinai metamorphic complexes were
subjected to four deformational events, the earliest tectonic event, D. is differing in the
high grade of metamorphism Feiran-Solaf metamorphic complex (FSMC) from the low
grade of metamorphism of the Sa’al-Zaghra metamorphic complex (SZMC) and the Kid
metamorphic complex (KMC), in which FSMC is expressed by extensional tectonic
regime and compressional regime for SZMC and KMC. The second deformational event
D2 related to a contractional regime of thrust related shear zones and its associated thrust
faults. This deformation is related to the major collision and accretion between East and
West Gondwana. The third tectonic event D3 represents oblique sinistral NW-SE
transpressional regime associated with NW-SE sinistral shear sense indicators and
NE-SW dextral shear sense indicators. This event is known to have formed the Najd
Fault System equivalent to the same deformation in the Eastern Desert as a result of the
collision of East and West Gondwana. The last tectonic event D4 during the Pan African
Orogeny reveals change in the stress regime form shortening NE-SW to shortening
NW-SE and WNW-ESE revealing open concentric folds trending NE-SW to NNE-SSW
followed by extension NW-SE associated with the intrusion the NE-SW alkaline suite
bodies. The later tectonic events represents dextral NW -SE system of shear zones
probably represents reactivation of the NFS during the Oligo-Miocene.