Biostratigraphy of the Middle Eocene succession at Gebel Mishgigah, Wadi Rayan, Libyan Desert, Egypt

Allam, Ahmed; Shamah, Kamal; Zalat, Abdelfattah A.

doi:10.1016/0899-5362(91)90136-m

Cited by 10 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Middle Eocene in northern Egypt has been studied by numerous authors (e.g. Strougo and Boukhary, 1987;Said, 1990;Haggag, 1990Haggag, , 1992Strougo, 1985aStrougo, , 1985bStrougo, , 2008Helal, 1990Helal, , 2002Strougo and Azab, 1991;Allam et al, 1991;Gingerich, 1992;Strougo et al, 1992;Omar 1999;Uhen, 2004;Mostafa and Hassan, 2004;Lotfy and Van der Voo, 2007;Abdel-Fattah et al, 2010;Abu Elghar, 2012El-Fawal et al, 2013, Marzouk et al, 2014and Sallam et al, 2015a. This paper adopts the lithostratigraphic columns of Said (1990) and Strougo (2008).…”

Section: Introductionmentioning

confidence: 99%

Metre-scale cyclicity in Middle Eocene platform carbonates in northern Egypt: Implications for facies development and sequence stratigraphy

Tawfik

El‐Sorogy

Moussa

2016

Journal of African Earth Sciences

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Metre-scale cyclicity in Middle Eocene platform carbonates in northern Egypt: Implications for facies development and sequence stratigraphy

Tawfik

El‐Sorogy

Moussa

2016

Journal of African Earth Sciences

View full text Add to dashboard Cite

“…In Egypt, the Eocene ostracods have been studied and investigated by numerous researchers (Abdallah, Helal, & Abdel Aziz, 2002;Abd-Elshafy, El-Fawal, Ismail, & Mattar, 2007;Abd-Elshafy, Ismail, & Abu-Ellil, 2000;Allam, Shamah, & Zalat, 1991;Bassiouni, Boukhary, Shamah, & Blondeau, 1984;Bassiouni, Hamza, & Morsi, 1994;Cronin & Khalifa, 1979;El Baz & Khalil, 2019;Hewaidy, Morsi, & Samir, 2015;Morsi, 1991;Morsi, Faris, Zalat, & Salem, 2008;Shahin, 2000Shahin, , 2005Shahin, El Halaby, & El Baz, 2008;Shamah & Helal, 1993). On the regional scale, other researchers such as Honigstein, Rosenfeld, and Benjamini (1991) dealt with ostracods and foraminifera from the Early-Middle Eocene of Qeren Sartaba area in Jordan Valley, which could coincide with the Egyptian ostracods.…”

Section: Introductionmentioning

confidence: 99%

Palaeoecological and palaeobiogeographic implications of Middle‐Late Eocene ostracods from the Qattamiya area, North Eastern Desert, Egypt

Korin

Hassan

2021

Geological Journal

View full text Add to dashboard Cite

In an attempt to define the palaeoecology and palaeobiogeography of the Middle‐Late Eocene rock units in the North Eastern Desert of Egypt, 121 rock samples of three representative localities, namely, Wadi Degla, Gebel Abu‐Shama, and Gebel Qattamiya sections were collected and investigated. Qualitative and quantitative analysis of ostracods associations and sedimentological data were used to identify three ostracod biozones; two acme zones (Cytherella tarabulusensis and Loxoconcha vetustopunctatella) of the Middle Eocene age and one assemblage zone (Xestoleberis subglobosa–Uromuellerina saidi) of Middle‐Late Eocene age, reflecting palaeoenvironments in the study area. The Cytherella tarabulusensis Zone, located at the bottom of all sections, is characterized by restricted shallow water, low dissolved oxygen, high salinity, and water depth below 100 m. The Loxoconcha vetustopunctatella Zone, located in Wadi Degla and Gebel Qattamiya sections, is characterized by shallow normal warm waters in the range of 20–50 m, whereas Xestoleberis subglobosa–Uromuellerina saidi Assemblage Zone, located in all studied sections, reflects restricted shallow water with a reduced dissolved oxygen condition palaeoenvironment. Palaeobiogeographically, the recorded ostracod assemblage exhibits similarities with those recorded in the Middle East and North and East Africa bioprovinces.

show abstract

“…third-or fourth-order relative sea-level cycles). The regional stratigraphy and the diagenetic processes of the studied sections have been examined by many researchers, (e.g., Haggag, 1990Haggag, , 1992Allam et al, 1991;Strougo et al, 1992;Boukhary et al, 1993;Omar, 1999;Mostafa and Hassan, 2004;Uhen, 2004;Lotfy and Voo, 2007;Abu Elghar, 2012, El-Fawal et al, 2013Marzouk et al, 2014). The aims of this work are to document and interpret the sequences and diagenetic phases and to discuss possible relations between sequences and the diagenesis in the studied Middle Eocene strata in northern Egypt (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Relationships between sequence stratigraphy and diagenesis of corals and foraminifers in the Middle Eocene, northern Egypt

Tawfik¹,

El‐Sorogy²,

Moussa³

2017

Turkish J Earth Sci

View full text Add to dashboard Cite

Outcrops of the Middle Eocene in northern Egypt represent a Tethyan reef-rimmed carbonate platform with bedded innerplatform facies. The diagenesis of these outcrops was studied in detail. The facies are characterized by a reef core, back reef and outer lagoon, shoal, inner lagoon, and tidal flat carbonate sequences. The diagenetic sequences on the scleractinian corals and foraminifers were thoroughly examined. These sequences show various diagenetic features during episodes of fluctuating sea levels and appear to be related to the primary composition of the studied components and the transgressive-regressive cycles. The carbonate diagenetic history of the examined samples successively includes marine-phreatic, mixed marine-meteoric, and shallow burial diagenesis. Most of the coral samples are affected by micritization and neomorphism and most of the foraminiferal samples are affected by micritization, dolomitization, glauconitization, or cementation. A sequence-stratigraphic analysis was carried out by integrating field and laboratory studies. The investigated sections were subdivided into three third-order sequences named S1, S2, and S3. The distribution of diagenetic fabrics was compared to a sequence stratigraphic framework. This has resulted in, for example, recording isopachous cement and autochthonous glauconitization mostly in the transgressive parts, while dolomitization, drusy cement, and biomoldic and vuggy porosities are recorded in the regressive parts; dedolomitization, allochthonous glauconitization, and ferrugination processes occurred at the sequence boundaries.

show abstract

Biostratigraphy of the Middle Eocene succession at Gebel Mishgigah, Wadi Rayan, Libyan Desert, Egypt

Cited by 10 publications

References 4 publications

Metre-scale cyclicity in Middle Eocene platform carbonates in northern Egypt: Implications for facies development and sequence stratigraphy

Metre-scale cyclicity in Middle Eocene platform carbonates in northern Egypt: Implications for facies development and sequence stratigraphy

Palaeoecological and palaeobiogeographic implications of Middle‐Late Eocene ostracods from the Qattamiya area, North Eastern Desert, Egypt

Relationships between sequence stratigraphy and diagenesis of corals and foraminifers in the Middle Eocene, northern Egypt

Contact Info

Product

Resources

About