Structural evolution and Microstructural analysis for al Faydh area, southern Arabian shield, Saudi Arabia

Kassem, Osama M. K.; Zaidi, Faisal K.; Alamri, Yousef; Al-Hashim, Mansour H.

doi:10.1016/j.jafrearsci.2022.104645

Cited by 1 publication

(7 citation statements)

References 38 publications

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“…Hamimi Johnson et al, 2011;Kassem et al, 2022;Moore, 1979;Stern, 1985;Sultan et al, 1988). The NFS is up to 400 km broad and 1100 km long, with inferred subsurface expansions of the Najd giving it a total length of 2000 km (Moore, 1979).…”

Section: Najd Fault Systemmentioning

confidence: 99%

“…Ad Dawadimi and Ar Rayn terranes are the youngest terranes in the ANS and occur along the eastern boundary of ANS (Figure 14a). These terranes show evidence for Ediacaran subduction, and their mutual juxtaposition marks the ANS's most recent suturing event (Johnson et al, 2011; Kassem et al, 2022).…”

Section: Deformational Belts Associated With Suturesmentioning

confidence: 99%

“…In the Egyptian Nubian Shield (Figure 17), three ANS‐scale deformation events (D1–D3) were described by Abd El‐Wahed and Hamimi (2020). The post‐accretionary D2 deformation event produced transpressional structure such as NW‐SE striking sinistral strike‐slip shear zones (e.g., Nugrus, Hafafit, Atalla, Kab Ahmed), NE–SW striking dextral transcurrent mega shears (e.g., Idfu‐Mersa Alam and Qena Safaga Shear Zones), and post‐accretionary shear zone bordering the gneiss domes (e.g., Meatiq, Sibai, Shalul, and Hafafit gneiss domes) (Abd El‐Wahed, 2008, 2014; Abd El‐Wahed & Abu Anbar, 2009; Abd El‐Wahed et al, 2010, 2016, 2021; Abd El‐Wahed & Attia, 2022; Abd El‐Wahed & Hamimi, 2020, 2021a, 2021b; Abdeen et al, 2014; Fritz et al, 1996, 2002, 2013; Hamimi et al, 2019; Kassem et al, 2022; Loizenbauer et al, 2001; Makroum, 2017).…”

Section: Deformational Belts Associated With Suturesmentioning

confidence: 99%

“…NFS is regarded as one of the longest Neoproterozoic shear zone systems on Earth. NFS is evolved between 540 and 620 Ma and consists of a composite group of NW–SE striking sinistral strike‐slip faults and ductile shear zones in the Arabian‐Nubian shield (Abd El‐Wahed et al, 2010, 2016, 2021; Abd El‐Wahed & Attia, 2022; Abd El‐Wahed & Hamimi, 2020, 2021a, 2021b; Agar, 1987; Berhe, 1990; Davies, 1984; Fritz et al, 2013; Hamimi & Abd El‐Wahed, 2020; Hamimi & Fowler, 2021; Johnson et al, 2011; Kassem et al, 2022; Moore, 1979; Stern, 1985; Sultan et al, 1988). The NFS is up to 400 km broad and 1100 km long, with inferred subsurface expansions of the Najd giving it a total length of 2000 km (Moore, 1979).…”

Section: Deformational Belts Associated With Suturesmentioning

confidence: 99%

“…The EAO is subdivided into the ANS in the north and the MB in the south. ANS is composed mainly of juvenile Neoproterozoic crust whereas MB comprises a pre‐Neoproterozoic tectonically overprinted between the Neoproterozoic and early Cambrian (Abd El‐Wahed & Attia, 2022; Bingen et al, 2009; Collins, 2006; De Waele et al, 2006; Fritz et al, 2013; Johnson et al, 2011; Kassem et al, 2022; Stern, 1994, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Structural and tectonic evolution of suture‐related belts and post‐accretionary systems in the Arabian‐Nubian Shield

El‐Wahed

Attia

2023

Geological Journal

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Deforming belts in the Arabian‐Nubian Shield (ANS) are classified into (1) suture‐related belts, including arc–arc and arc‐continental, and (2) post‐accretionary systems, including N‐trending compression zones and NW‐trending strike‐slip faults. Terrane accretion took place in the ANS between 800 and 700 Ma, along arc–arc sutures. Such sutures are directed from E to NE in the northern part of the ANS, and from N to NE in the south, and are aligned in the north and east with N‐ or S‐verging ophiolitic nappes, or in the south with W‐verging nappes. The Asir, Hijaz, and Midyan terranes formed the Western Arabian shield by 715 Ma. The Afif terrane collided with the Hijaz and Asir terranes between 680 and 640 Ma, terminating the subduction along the Nabitah suture. Subduction began west of the Al Amar arc near the margin of the Ar Rayn terrane at 670 Ma. Afif and Ar Rayn terranes collided along the Al Amar‐Idsas suture about 640 Ma, producing the Idsas orogeny that initiated the major faulting and folding. Strike‐slip faults and upright folds related to oblique convergence between terranes and/or post‐accretionary systems deform the southern sutures. The eastern and western boundaries of the ANS are marked by arc‐continental sutures and characterized by N‐trending deformation belts that formed at 750–650 Ma when the ANS collided with East and West Gondwana.

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