Structural evolution of the eastern shoulder of the Suez Rift: Um Bogma area

Moustafa, Adel R.; Yousif, Mahmoud S. M.

doi:10.1127/njgpm/1993/1993/655

Cited by 6 publications

(6 citation statements)

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“…Then, a Lower Palaeozoic succession of ca. 2.5 km in thickness was deposited [24,78,79]. Afterward, this Lower Palaeozoic succession was completely eroded, except for a few remnants (ca.…”

Section: Cooling and Uplifting Eventsmentioning

confidence: 99%

“…While by the Devonian-Carboniferous time, the Hercynian (Variscan) tectonic activity developed by suturing of the Gondwana with the Laurasia [25]. This collision initiated significant uplifts and erosions in the Lower Paleozoic sequence of the NED and Sinai [2,17,38,[77][78][79]. Meanwhile, a complete succession was conserved in South Jordan and North Saudi Arabia [24,80].…”

Section: Geologic Settingmentioning

confidence: 99%

“…Then, a Devonian-Carboniferous rapid cooling event occurred, causing uplifting to the AFT PAZ. This was the regional reaction to the Hercynian (Variscan) event, causing the elimination of more than 2.5 km of the Lower Palaeozoic sedimentary sequence and an additional amount from the fundamental basement rocks [79]. This uplift is marked sedimentologically by changing the sedimentation environment from the marine Lower Carboniferous aged formation of Um Bogmato to the terrestrial Upper Carboniferous formation of Abu Darag [102,103].…”

Section: Thermal History Modellingmentioning

confidence: 99%

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Tectonic-Thermal Evolution of the Wadi El-Dahal Area, North Eastern Desert, Egypt: Constraints on the Suez Rift Development

Mansour,

Hasebe,

Khedr

et al. 2023

Minerals

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The Suez Rift developed as a northern extension of the Red Sea rift during the Oligocene-Miocene, whose flanks were constructed from the Neoproterozoic basement rocks of the Arabian–Nubian Shield. These basement rocks are comprised of the whole tectonic history since their formation. The Suez Rift initiation model and proposed thermal overprint role in the rifting process and flank development remain uncertain. Additionally, the amplitude of different regional tectonic events’ effects on the region is still debatable. Integration of fission-track thermochronology data with modeling of the time-temperature history has demonstrated efficiency in addressing such issues. In the context of this study, eleven representative samples were collected from the different rock units in the Wadi El-Dahal area at the northern tip of the western flank of the Suez Rift. These samples revealed Carboniferous zircon fission-track cooling ages of 353 ± 9 Ma and 344 ± 11 Ma. Meanwhile, the apatite fission-track analysis provided two spatially separated age groups: Permian-Triassic and Late Cretaceous, with average ages of 249 ± 11 Ma and ca. 86 ± 10 Ma, respectively. The time-temperature modeling revealed four possible cooling pulses representing exhumation events, which were initiated as a response to four tectonic activities: the accretion-subsequent event of erosion during the Neoproterozoic, the Hercynian (Variscan) tectonic event during the Devonian-Carboniferous, the Mid-Atlantic opening during the Cretaceous, and the Suez Rift opening during the Oligocene-Miocene. The western flank of the Suez Rift suggests a passive mechanical type with no extra thermal overprint, as indicated by the dominance of older thermochronological ages, modest rift flank elevations, and a reduction in the heat flow.

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“…Then, a Lower Palaeozoic succession of ca. 2.5 km in thickness was deposited [24,78,79]. Afterward, this Lower Palaeozoic succession was completely eroded, except for a few remnants (ca.…”

Section: Cooling and Uplifting Eventsmentioning

confidence: 99%

Section: Geologic Settingmentioning

confidence: 99%

Section: Thermal History Modellingmentioning

confidence: 99%

See 1 more Smart Citation

Tectonic-Thermal Evolution of the Wadi El-Dahal Area, North Eastern Desert, Egypt: Constraints on the Suez Rift Development

Mansour,

Hasebe,

Khedr

et al. 2023

Minerals

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show abstract

“…C4) The Nukhul (Abu Zenima) Formation (Lower Miocene age, ~100 m thick). This unconformably overlies the Tayiba Formation and contains alluvial and volcanic deposits from the early syn-rift stage (Moustafa and Yousif, 1993;El-Anwar, 2019). C5) The Rudeis Formation (Lower-Middle Miocene age, ~191 mthick).…”

Section: Figurementioning

confidence: 99%

“…During this event, the terrain uplifting in the RSRS region was a reaction to the tectonic activity of the Hercynian that caused a change in the sedimentological nature from the Early Carboniferous time Um Bogma marine sediments to the Late Carboniferous time Abu Thora erosional sediments (Figure 3). This uplift caused rock erosion of more than 2.5 km of an Early Palaeozoic succession plus part of the underlying ANS rocks (Kohn et al, 1992;Moustafa and Yousif, 1993). 3) The Cretaceous uplifting activity (Figure 4).…”

Section: Thermal History Modelingmentioning

confidence: 99%

Tectonic evolution of the Gabal Loman area, North Eastern Desert, Egypt: implications from low-temperature multithermochronometry on the Arabian-Nubian shield

et al. 2023

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The Neoproterozoic Arabian-Nubian Shield (ANS) in the Eastern Desert of Egypt encloses the regional thermal-tectonic history from its development till the Oligo-Miocene when the Red Sea rift system was initiated. The application of multi-thermochronometry techniques has proven to be a successful approach to revealing the influence and extent of each regional tectonic event and the recreation of the tectono-thermal development of the studied region through time. Therefore, characteristic samples from the ANS different rock suits of the Gabal Loman area at the western flank of the northern Red Sea were collected. The Zircon fission-track data reveals the Carboniferous cooling ages, while the apatite fission-track cooling ages present two differential time spans of Cretaceous and Eocene-Oligocene. The time-temperature history modeling is integrated with fission-track data to reveal three differentiated cooling events developed in response to regional tectonic events: 1) the Hercynian (Variscan) tectonic event that influenced the ANS vicinity with rock uplifts of ca. 4 km through the Devonian-Carboniferous time, 2) the Gondwana disintegration event which influenced the region with differential rock exhumations, and 3) the northern Red Sea rifting through the Oligo-Miocene which caused a regional ca. 1 km of rift flanks exhumation. This modest rift flank uplift suggests a passive rift of the northern Red Sea rifting in the region of study.

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Erosional reservoir for the northern segment of the Arabian-Nubian shield: Constrains from U-Pb geochronology of the lower palaeozoic succession, North Eastern Desert, Egypt

Mansour

Hasebe

Tamura

2023

Precambrian Research

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Structural evolution of the eastern shoulder of the Suez Rift: Um Bogma area

Cited by 6 publications

References 0 publications

Tectonic-Thermal Evolution of the Wadi El-Dahal Area, North Eastern Desert, Egypt: Constraints on the Suez Rift Development

Tectonic-Thermal Evolution of the Wadi El-Dahal Area, North Eastern Desert, Egypt: Constraints on the Suez Rift Development

Tectonic evolution of the Gabal Loman area, North Eastern Desert, Egypt: implications from low-temperature multithermochronometry on the Arabian-Nubian shield

Erosional reservoir for the northern segment of the Arabian-Nubian shield: Constrains from U-Pb geochronology of the lower palaeozoic succession, North Eastern Desert, Egypt

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