Facies and sequence stratigraphy of some Miocene sediments in the Cairo–Suez District, Egypt

Tawfik, Mohamed; El‐Sorogy, Abdelbaset S.; Mowafi, Ahmed; Al-Malky, Mazen

doi:10.1016/j.jafrearsci.2014.08.016

Cited by 19 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was greatly affected by the regional tectonic evolution that predominated over the Gulf of Suez regions and the Red Sea as a whole throughout the late stages of the Cretaceous and continued intermittently until the Late Miocene (Bosworth & McCaly, 2001; Garfunkel & Bartov, 1977; Patton et al, 1994; Wyn Hughes et al, 1992). This area is dissected by several wadis that drain towards the Gulf of Suez (e.g., Wadi El‐Ramiya, Wadi El‐Mahgar, Wadi Tweirig, Wadi Hommath, Wadi Hagul), and form ridges that crop out on the southern slopes of Gebel Ataqa (Abdallah & Abd El‐Hady, 1966; Al‐Ahwani, 1982; El‐Heiny, 1982; Tawfik et al, 2015).…”

Section: Geologic Settingmentioning

confidence: 99%

“…Previous studies omitted the detailed investigation of the sequence stratigraphy, integrating microfacies types and quantitative foraminifera and nannoplankton data. Tawfik, El-Sorogy, Mowafi, and Al-Malky (2015) and Sallam and Ruban (2020) made contributions to the sequence stratigraphy of the study area. Furthermore, these studies did not analyse the quantitative palaeoecological data of the successions, despite the latter being the most widely used biostratigraphic tools for palaeoenvironmental reconstruction.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Sequence stratigraphy of the Miocene siliciclastic–carbonate sediments in Sadat Area, north‐west of Gulf of Suez: Implications for Miocene eustasy

2022

View full text Add to dashboard Cite

The Miocene sequences in the north‐west of the Gulf of Suez represent transition zones between carbonate‐dominated and siliciclastic‐dominated strata. These rocks were greatly influenced by the Gulf of Suez rifting, which resulted in lateral variations of facies and hence presented a complicated stratigraphic setting. Here, we interpret the sequence stratigraphy of the Sadat Area to the north‐west of the Gulf of Suez by integrating biostratigraphic data and microfacies analysis to contribute primarily to the geology of the studied successions and incorporate the existing knowledge of syn‐rift deposition. We determined the ages of the studied formations by biostratigraphic examination of the integrated calcareous nannoplankton, planktic, and benthic foraminifera. Our results distinguish four genetic Miocene sequences. These sequences are defined by four major sequence boundaries that outline sedimentation cycles and were chiefly deposited in a lagoon to outer‐shelf settings. The proposed Miocene eustacy is well‐correlated with global curves, implying a rise in sea level in the lower parts of Zones M4, M5, and M8. In contrast, the reduction of sea‐level rise resulted in the decrease of accommodation space in the upper part of Zone M5. The studied Miocene deposits mainly formed in a shallower marine environment, as shown by a comparison between data from the eastern side of the Gulf of Suez and the data presented in this paper. Furthermore, we demonstrate that the local tectonic activity linked with the Gulf of Suez rifting and the eustatic sea‐level changes were significant factors in the deposition of the Miocene in the studied successions.

show abstract

Section: Geologic Settingmentioning

confidence: 99%

mentioning

confidence: 99%

Sequence stratigraphy of the Miocene siliciclastic–carbonate sediments in Sadat Area, north‐west of Gulf of Suez: Implications for Miocene eustasy

2022

View full text Add to dashboard Cite

show abstract

“…Bhatia (1985) realized a low success rate of 0-23 %, and Roser & Korsch (1988) achieved a success rate of 31.5-52.3 %. However, Verma & Armstrong-Altrin (2013) proposed two discrimination diagrams based on major elements to infer the tectonic setting of siliciclastic sediments, and the two discrimination diagrams have been successfully applied in recent studies (Armstrong-Altrin et al 2014;Armstrong-Altrin, 2015;Tawfik et al 2015;Zaid, 2015).…”

Section: D Tectonic Settingmentioning

confidence: 99%

Petrography and geochemistry of the Lower Silurian sandstones from the Angzanggou Formation in the North Qilian Belt, China: implications for provenance, weathering and tectonic setting

et al. 2019

View full text Add to dashboard Cite

The North Qilian Orogenic Belt is on the northeastern margin of the Tibetan Plateau. It is connected with the Alxa Block in the north and the Tethyan orogenic assemblage in the south. The Lower Silurian Angzanggou Formation, deposited in the northern area of the North Qilian Orogenic Belt, is the most important for revealing the architecture and orogenic processes of the North Qilian Belt. Provenance analysis of the Angzanggou Formation can reveal not only the tectonic evolution of the central orogenic belt of China but also Palaeozoic Asia plate reconstructions. Petrographic analysis indicated that the compositional and textural maturity of the sandstones was low. The detrital composition of the Angzanggou Formation samples consists of quartz (8–14 %), feldspar (6–29 %) and lithic fragments (56–86 %). The sandstones could be classified as litharenites or feldspathic litharenites. The detrital modal composition suggests that these sandstones were probably deposited in a fore-arc basin. The element ratios and some discrimination diagrams based on geochemistry indicate that felsic and intermediate rocks were the main source rocks. The SiO2/Al2O3 ratio, the index of chemical variability and the Th/Sc versus Zr/Sc discrimination diagram suggest that the compositional maturity and degree of recycling were moderate to low. The index of alteration (CIA) and the A–CN–K diagram indicate the intensity of weathering was moderate. The discrimination diagrams based on major and trace elements and petrographic discrimination diagrams imply that the Angzanggou Formation rocks were derived from a continental island arc, and a sedimentary cover probably overlaid the volcanic arc. Therefore, we infer that during Early Silurian time the North Qilian Belt sediments accumulated in a fore-arc basin.

show abstract

“…[8] interpreted that, the cyclic sedimentation, lateral facies, and thickness variations of the Miocene succession in Cairo-Suez district are caused by block faulting along renewed tectonic activities. on the other hand [9] suggested that the Miocene shallow water siliciclastics and carbonates in the Cairo-Suez district, were deposited within the epeiric ramp based upon lithofacies and biofacies documentation. The lateral facies change is well represented in Wadi Hagul as studied by [10] which exhibits different lithofacies characteristics than other basins, where the middle Miocene represents a reefal limestone within a rimmed carbonate shelf.…”

Section: Introductionmentioning

confidence: 99%

Microfacies analyses, depositional interpretation and sequence stratigraphic delineation of the Miocene rocks at Cairo-Suez Road, Egypt

Hassan

Shehata²,

Morsy³

2022

Alfarama Journal of Basic & Applied Sciences

View full text Add to dashboard Cite

Facies analysis and depositional environment investigation coupled with the sequence stratigraphy gave a precise picture on the depositional framework and evolution of any succession. This study is ground on litho-and microfacies analysis and stratigraphical investigation to conclude the depositional and sequence stratigraphic framework of the Miocene rocks units along the Cairo-Suez Road. The studied depositional sequences of Burdigalian-Langhian age can be differentiated into two main stratigraphic units; A lower siliciclastic unit revealing lagoonal (intertidal lagoons, intertidal estuarine), and inner ramp facies, termed as Gharra Formation, and lies unconformably over the Oligocene continental sediments of Gebel Ahmar Formation. This unit is conformably overlain by the middle Miocene marine-nature sediments of Genefe Formation., revealing middle, to outer ramp facies. This depositional sequence was initiated as a result of the Miocene sea first advance over northern Egypt, including the study area. Retrogradational parasequences were stacked successively to evolve the lowstand system tract (LST), followed by the transgressive surface (TS), that matched the contact between Gharra, and Genefe formations. A deeper accommodation zone was formed as a result of the middle Miocene sea level rise, due to a tectonic subsidence, resulting in the deposition of Genefe Formation over the transgressive surface (TS), representing the transgressive system tract (TST).

show abstract

Facies and sequence stratigraphy of some Miocene sediments in the Cairo–Suez District, Egypt

Cited by 19 publications

References 8 publications

Sequence stratigraphy of the Miocene siliciclastic–carbonate sediments in Sadat Area, north‐west of Gulf of Suez: Implications for Miocene eustasy

Sequence stratigraphy of the Miocene siliciclastic–carbonate sediments in Sadat Area, north‐west of Gulf of Suez: Implications for Miocene eustasy

Petrography and geochemistry of the Lower Silurian sandstones from the Angzanggou Formation in the North Qilian Belt, China: implications for provenance, weathering and tectonic setting

Microfacies analyses, depositional interpretation and sequence stratigraphic delineation of the Miocene rocks at Cairo-Suez Road, Egypt

Contact Info

Product

Resources

About