Depth Imaging Sub-salt Structures: A Case Study in the Midyan Peninsula (Red Sea)

Mougenot, D.; Al-Shakhis, Amir A.

doi:10.2113/geoarabia0404445

Cited by 20 publications

(1 citation statement)

References 20 publications

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“…A limited number of published seismic sections show similarities in the structural setting of the near‐shore margins of Saudi Arabia and Egypt, while the conjugate distal margins have a different structural style (Stockli & Bosworth, 2019). Detachment fault systems have been observed in the Midyan area of Saudi Arabia and along the Egyptian shoreline (Bosworth & Burke, 2005; Mougenot & Al‐Shakhis, 1999; Stockli & Bosworth, 2019). Stockli and Bosworth (2019), interpreted a NE‐SW 2D seismic section in the distal Egyptian margin and observed two NE dipping low‐angle normal faults rooted in the continental crust.…”

Section: Geological Setting Of the Nrsmentioning

confidence: 99%

Geophysical Evidence for Magmatism Southwest of the Brothers Islands, Northern Red Sea (Offshore Quseir, Egypt)

et al. 2022

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The Red Sea formed due to the separation of Arabia from Nubia during the Late Oligocene-Early Miocene, involving a counter-clockwise rotation of the Arabian plate. Although the southern and central sectors of the Red Sea reached the oceanic stage and display a prominent NW-SE oriented axial ridge, the nature of the crust in its northward termination is still controversial (e.g., Augustin et al., 2021). Onshore observations in the present-day margins of the northern Red Sea (NRS) indicate a "classic" rifted margin dynamic dominated by normal fault and half-graben geometries and provide constraints on the timing and evolution of rifting (Figure 1a; Bosworth & Burke, 2005;Cochran, 1983Cochran, , 2005. Omar and Steckler (1995) concluded that the early stage of rifting was accompanied by two uplift and erosion phases of the shoulders. The first stage started ∼34 Ma in the Early Oligocene, while the second uplift and erosion phase occurred during the latest Oligocene to Early Miocene. However, geological and thermochronometric evidence from the Quseir area on the Red Sea coast indicates that only the second uplift and erosion phase at 23 Ma exists (

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Section: Geological Setting Of the Nrsmentioning

confidence: 99%

Geophysical Evidence for Magmatism Southwest of the Brothers Islands, Northern Red Sea (Offshore Quseir, Egypt)

et al. 2022

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Thermochronometric evidence for diffuse extension and two-phase rifting within the Central Arabian Margin of the Red Sea Rift

Szymanski

Stöckli

Johnson³

et al. 2016

Tectonics

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Numerical time‐temperature models derived from a 2‐D network of apatite and zircon (U‐Th)/He ages reveal a three‐stage thermotectonic history for the central Arabian rift flank (CARF) of the Red Sea Rift (RSR) system. The pre‐rift Arabian‐Nubian Shield existed as part of a passive Paleo‐Tethyan margin until a widespread tectonic event at ~350 Ma exhumed the proto‐CARF to mid‐to‐upper crustal structural levels. After remaining thermally stable through the Mesozoic, the first phase of RSR extension began with a distinct rift pulse at ~23 Ma when fault blocks across a 150 km wide area were exhumed along a diffuse set of rift‐parallel faults from an average pre‐rift flank depth of 1.7 ± 0.8 km. This rift onset age is mirrored in thermochronometric and sequence stratigraphic analyses elsewhere along the Red Sea Nubian and Arabian margins, confirming that rifting occurred concomitantly along the full Red Sea‐Gulf of Suez rift system. Diffuse lithospheric extension lasted for 8 Myr before a second rift pulse at ~15 Ma, coincident with regional stress realignment, transferred active faulting basinward toward the modern RSR axial trough. CARF time‐temperature models indicate that the prevalent rift style during both RSR extensional phases was one of localized, structurally controlled block faulting and contemporaneous dike injection, not wholesale rift flank uplift.

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Geology of Egypt: The Northern Red Sea

Bosworth¹,

Khalil

Ligi

et al. 2019

Regional Geology Reviews

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Depth Imaging Sub-salt Structures: A Case Study in the Midyan Peninsula (Red Sea)

Cited by 20 publications

References 20 publications

Geophysical Evidence for Magmatism Southwest of the Brothers Islands, Northern Red Sea (Offshore Quseir, Egypt)

Geophysical Evidence for Magmatism Southwest of the Brothers Islands, Northern Red Sea (Offshore Quseir, Egypt)

Thermochronometric evidence for diffuse extension and two-phase rifting within the Central Arabian Margin of the Red Sea Rift

Geology of Egypt: The Northern Red Sea

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