Arid
DOI10.1007/s12517-021-06689-0
Facies-based model and basin architecture of the Eocene succession in Egypt (Eastern Desert and Sinai): an example for tectonically controlled sedimentation on the southern Tethyan margin
El Ayyat, Abdalla M.
Corresponding AuthorEl Ayyat, AM (corresponding author), Assiut Univ, Fac Sci, Dept Geol, Assiut 71516, Egypt.
JournalARABIAN JOURNAL OF GEOSCIENCES
ISSN1866-7511
EISSN1866-7538
Year Published2021
Volume14Issue:9
Abstract in EnglishIntegration of stratigraphy, spatial evolution, and syn-tectonism paved the way to propose a new depositional model for the Eocene rocks in the Eastern Desert and Sinai. Minia, Darat, Samalut, and Maghagha geological formations have been recognized. Eight sedimentary facies including tidal flat/lagoon complex, restricted inner lagoon, shoals, outer lagoon, back-bank, nummulite bank, fore-bank, and open marine have been identified. They were deposited in the shallow marine photic environment on a gently dipping platform ramp due to north of Egypt. Furthermore, this ramp shows three main faunal associations depending on water depth. The facies zones are arranged into a series of parallel NE-SW elongated subsiding sub-basins, separated by emerged and submerged swells rising from the bottom of the Eocene sea. Physically controlled sedimentary structures indicate a para-autochthonous to bio-concentration of the nummulite bodies. The spatio-temporal variations in the depositional environments and hiatuses in between and within the studied rock units indicate stratigraphic unrest. The Syrian Arc tectonism is the main trigger for such disturbance, which was rejuvenated and enlarged during the Late Cretaceous up to the Neogene in the eastern and southeastern Mediterranean domain.
Keyword in EnglishSouthern Tethyan domain Nummulite bank Large foraminifera Facies belts Syrian Arc System
SubtypeArticle
Language英语
Indexed BySCI-E
WOS IDWOS:000644077500003
WOS KeywordEL-GARIA FORMATION ; DEPOSITIONAL-ENVIRONMENTS ; SEQUENCE STRATIGRAPHY ; BENTHIC FORAMINIFERA ; ASMARI FORMATION ; WESTERN DESERT ; FARAFRA OASIS ; MIDDLE EOCENE ; CARBONATE ; PETROLEUM
WOS SubjectGeosciences, Multidisciplinary
WOS Research AreaGeology
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/349570
Affiliation[El Ayyat, Abdalla M.] Assiut Univ, Fac Sci, Dept Geol, Assiut 71516, Egypt
Recommended Citation
GB/T 7714
El Ayyat, Abdalla M.. Facies-based model and basin architecture of the Eocene succession in Egypt (Eastern Desert and Sinai): an example for tectonically controlled sedimentation on the southern Tethyan margin[J],2021,14(9).
APA El Ayyat, Abdalla M..(2021).Facies-based model and basin architecture of the Eocene succession in Egypt (Eastern Desert and Sinai): an example for tectonically controlled sedimentation on the southern Tethyan margin.ARABIAN JOURNAL OF GEOSCIENCES,14(9).
MLA El Ayyat, Abdalla M.."Facies-based model and basin architecture of the Eocene succession in Egypt (Eastern Desert and Sinai): an example for tectonically controlled sedimentation on the southern Tethyan margin".ARABIAN JOURNAL OF GEOSCIENCES 14.9(2021).
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