Structural architecture and tectonic evolution of the Shabrawet Syrian Arc inverted zone at the Northern termination of the Gulf of Suez rift, Egypt

Hammed, Mohamed; Sayed, Farouk; Shided, Ahmed G.; Hussein, Ahmed W.

doi:10.1080/00206814.2021.2021558

Cited by 7 publications

(1 citation statement)

References 52 publications

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“…Basin inversion took place during the Late Cretaceous‐Eocene time (Lüning et al, 2004; Shalaby & Sarhan, 2021) because of a substantial compressional force occurred during the late Cretaceous‐Tertiary time (Bevan & Moustafa, 2012; Guiraud, 1998; Guiraud et al, 2005; Guiraud & Bosworth, 1997; Moustafa, 1988; Shukri, 1954) and continued until the Oligo‐Miocene time (Bevan & Moustafa, 2012). Consequently, a series of anticlinal folding was formed trending NE–SW as a part of the Syrian Arc system that is intensively distributed in Northern Africa and responsible for the formation of the main hydrocarbon trapping style (e.g., Bevan & Moustafa, 2012; Hammed et al, 2022; Moustafa, 2013; Moustafa, 2014; Moustafa, 2021; Moustafa & Fouda, 2014; Yousef et al, 2010). Thus, the AG Basin was subdivided into four segments namely the AG Anticline, the Kattaniya High, Mid‐Basin Arch, and the Mubarak High (Bayoumi, 1994).…”

Section: Geologic Settingmentioning

confidence: 99%

Petroleum generation modelling of theMiddle‐LateCretaceous sediments in the Abu Gharadig Field, Northwestern Desert, Egypt

et al. 2022

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The present work introduces an integral study concerning the Middle‐Late Cretaceous source rocks in Abu Gharadig (AG) Field utilizing source rock evaluation techniques and hydrocarbon generation modelling. The used methods include TOC%, Rock‐Eval pyrolysis, vitrinite reflectance (Ro%), and 1D basin modelling data. Our results show that most of the studied marine Middle‐Late Cretaceous intervals in AG Field are considerable as source rocks, excluding the Abu Roash A‐D members. The Kharita, Bahariya, and Abu Roash E & G intervals have mainly gas‐prone kerogen. The Abu Roash F and Khoman B members contain mixed kerogen type II/III with oil/gas‐prone generative potential. Khoman A member has marine type II kerogen with mainly oil‐ and minor gas‐prone generative potential. Among the Middle‐Late Cretaceous rock units, the Khoman Formation is either immature or early mature, whereas others are mature enough to generate hydrocarbons. The burial history models typify a high subsidence rate during the deposition of Kharita, Bahariya, and Abu Roash formations in response to the Tethyan rifting phase. The timing of the peak of oil generation window for the Abu Roash G interval is ranged as Late Oligocene‐Early Pliocene time. Moreover, the timing of the peak of oil generation for the Abu Roash F interval is ranged as Early Miocene‐Latest Miocene. Based on transformation ratios (TR), the Abu Roash F member demonstrates a limited hydrocarbon expulsion (25% > TR <50), whereas both Abu Roash G and Khoman B members can generate in‐situ hydrocarbon (TR ≤10%). Compiling data along the AG basin from previous works infers that there are spatial and temporal discrepancies in organics composition and thermal maturity of the Middle‐Late Cretaceous intervals. Changes in paleoclimate, eustatic, and basin tectonics can be considered as the primary drivers that triggered such spatiotemporal variation. Integrated approaches are needed to constrain the multi‐geospheric interactions of major Cretaceous anoxic events in the Northwestern Desert of Egypt, and to explore the driving forces on these organics‐accumulating events.

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Section: Geologic Settingmentioning

confidence: 99%

Petroleum generation modelling of theMiddle‐LateCretaceous sediments in the Abu Gharadig Field, Northwestern Desert, Egypt

et al. 2022

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Integrating facies, mineralogy, and paleomagnetism to constrain the age and provenance of Paleozoic siliciclastic sedimentary rocks along the northern Gondwana margin: insights from the Araba and Naqus formations in western Gulf of Suez, Egypt

Al-Nashar,

Hafez,

El-Moghny

et al. 2024

Int J Earth Sci (Geol Rundsch)

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The depositional ages and provenance of the Paleozoic Araba and Naqus Formations along the northern Gondwanan margin in Egypt have remained uncertain due to a lack of index fossils. Resolving this issue is crucial for understanding regional geology during deposition and subsequent tectonic development. We integrate detailed facies analysis, anisotropy of magnetic susceptibility (AMS), paleomagnetism, and mineralogical data to elucidate the genesis and depositional ages of the Araba and Naqus Formations. Petrographic analyses identified seven distinct facies types, providing insights into sedimentary textures, maturity, and sources, with contributions from igneous and metamorphic sources indicated by heavy minerals. X-ray diffraction (XRD) analysis identified accessory minerals such as quartz, goethite, kaolinite, hematite, and anatase. Paleomagnetism isolated two magnetic components (CA and CN) providing the first robust paleo pole positions at Lat. = 70.8° N, Long. = 308.2° E and Lat. = 37.8° N, Long. = 233.1° E, indicating Cambrian and Carboniferous ages for the Araba and Naqus formations, respectively. Thermal demagnetization constrained these dates using established polarity timescales. Mineralogical data indicated that the Araba Formation originated from an igneous source, while the Naqus Formation had a mixed metamorphic-igneous provenance. The integrated AMS and paleomagnetic data reveal evidence of post-depositional deformation. Specifically, the clustering of maximum AMS axes in the NW–SE direction for both formations, suggests the initial presence of a primary depositional fabric. However, prevalent tectonic activity during the Cenozoic appears to have overprinted and modified this fabric through deformation related to rifting of the Gulf of Suez region. Through this novel multi-proxy approach, we have resolved long-standing uncertainties regarding the formations' depositional ages. Our study thereby provides the first chronostratigraphic framework for these strategically important sedimentary units, significantly advancing understanding of regional Paleozoic geology. Graphical abstract

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The geometry of the Western Boundary Fault (WBF) of Amer oil field and its influence on hydrocarbon trapping, western central Gulf of Suez, Egypt

Sayed

Salim

Araby

et al. 2023

Journal of African Earth Sciences

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Structural architecture and tectonic evolution of the Shabrawet Syrian Arc inverted zone at the Northern termination of the Gulf of Suez rift, Egypt

Cited by 7 publications

References 52 publications

Petroleum generation modelling of theMiddle‐LateCretaceous sediments in the Abu Gharadig Field, Northwestern Desert, Egypt

Petroleum generation modelling of theMiddle‐LateCretaceous sediments in the Abu Gharadig Field, Northwestern Desert, Egypt

Integrating facies, mineralogy, and paleomagnetism to constrain the age and provenance of Paleozoic siliciclastic sedimentary rocks along the northern Gondwana margin: insights from the Araba and Naqus formations in western Gulf of Suez, Egypt

The geometry of the Western Boundary Fault (WBF) of Amer oil field and its influence on hydrocarbon trapping, western central Gulf of Suez, Egypt

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