干旱区生态环境知识资源中心(Arid): Eocene planktonic foraminifera from the north Eastern Desert, Egypt: Biostratigraphic, paleoenvironmental and sequence stratigraphy implications

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DOI	10.26879/1088
	Eocene planktonic foraminifera from the north Eastern Desert, Egypt: Biostratigraphic, paleoenvironmental and sequence stratigraphy implications
	Salama, Yasser; Sayed, Mostafa; Saber, Shaban; Abd El-Gaied, Ibrahim
通讯作者	Salama, Y (corresponding author), Beni Suef Univ, Fac Sci, Geol Dept, Bani Suwayf 65211, Egypt.
来源期刊	PALAEONTOLOGIA ELECTRONICA
ISSN	1935-3952
EISSN	1094-8074
出版年	2021
卷号	24 期号:1
英文摘要	The Eocene succession at Beni Suef-El Zaafarana District in north Eastern Desert is rich in planktonic foraminiferal assemblages. The main objectives of this work are to use the planktonic foraminifera to recognize the biostratigraphy for the Middle-Upper Eocene succession in the study area. Seventy planktonic foraminiferal species belonging to 20 genera and seven families are identified from the Eocene El Fashn and Beni Suef formations. Three planktonic foraminiferal biozones are recognized. These are from older to younger Morozovelloides crassatus Zone (late Middle Eocene) that is recorded from El Fashn Formation, Globigerinatheka semiinvoluta Zone (latest Middle Eocene -Late Eocene) and Globigerinatheka index Zone (Late Eocene age) that are recorded from the Beni Suef Formation while the Maadi Formation is found barren in planktonic foraminifera. These zones are correlated with those from nearby areas in Egypt and the Mediterranean regions. The Middle/Upper Eocene (Bartonian/Priabonian) boundary is discussed here in detail. The percentage of the planktonic foraminifera in the total foraminiferal content (P %) points to a change in water depth. There was a significant decrease in the planktonic/benthic foraminiferal ratio from the late Middle Eocene El Fashn Formation to the Late Eocene Maadi Formation at Beni Suef-El Zaafarana District. This ratio change supports a shallowing upward in paleodepth. Based on the lithology, planktonic/benthic ratio and the obtained water depth, the studied Eocene succession could be subdivided into four depositional sequences. These sequences agree with the global eustatic sea-level and the depositional sequences in nearby areas.
英文关键词	Foraminifera Eocene biostratigraphy Egypt
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000651605500011
WOS关键词	BENI SUEF AREA ; CALCAREOUS NANNOFOSSIL ; BENTHIC FORAMINIFERA ; FAYUM DEPRESSION ; FACIES ANALYSIS ; SHABRAWET AREA ; MIDDLE ; TRANSITION ; PALEOECOLOGY ; EXTINCTION
WOS类目	Paleontology
WOS研究方向	Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351281
作者单位	[Salama, Yasser; Sayed, Mostafa; Saber, Shaban; Abd El-Gaied, Ibrahim] Beni Suef Univ, Fac Sci, Geol Dept, Bani Suwayf 65211, Egypt
推荐引用方式 GB/T 7714	Salama, Yasser,Sayed, Mostafa,Saber, Shaban,et al. Eocene planktonic foraminifera from the north Eastern Desert, Egypt: Biostratigraphic, paleoenvironmental and sequence stratigraphy implications[J],2021,24(1).
APA	Salama, Yasser,Sayed, Mostafa,Saber, Shaban,&Abd El-Gaied, Ibrahim.(2021).Eocene planktonic foraminifera from the north Eastern Desert, Egypt: Biostratigraphic, paleoenvironmental and sequence stratigraphy implications.PALAEONTOLOGIA ELECTRONICA,24(1).
MLA	Salama, Yasser,et al."Eocene planktonic foraminifera from the north Eastern Desert, Egypt: Biostratigraphic, paleoenvironmental and sequence stratigraphy implications".PALAEONTOLOGIA ELECTRONICA 24.1(2021).