干旱区生态环境知识资源中心(Arid): Contribution to the biostratigraphy of the Middle-Upper Eocene rock units at North Eastern Desert; an integrated micropaleontological approach

Arid

DOI	10.1016/j.heliyon.2019.e01671
	Contribution to the biostratigraphy of the Middle-Upper Eocene rock units at North Eastern Desert; an integrated micropaleontological approach
	Hassan, Hatem F.; Korin, Asmaa H.
通讯作者	Hassan, HF
来源期刊	HELIYON
EISSN	2405-8440
出版年	2019
卷号	5 期号:5
英文摘要	Foraminifera and calcareous nannofossils have been integrated to improve the biostratigraphy of the MiddleUpper Eocene rocks at North Eastern Desert. Biostratigraphic analysis has enabled the identification of three planktic biozones, Globigerinatheka kugleri/Morozovella aragonensis (E9), Morozovelloides crassatus (E13) and Turorotalia cerroazulensis pomeroli/T. cerr. cerroazulensis. Meanwhile, the occurrence of calcareous nannofossils Reticulofenestra dictyoda, Pontosphaera multipora and Reticulofenestra umbilica within Morozovelloides crassatus Zone (E13) were attributed to Discoaster saipanensis Zone (NP17). Furthermore the quantitative analysis of small benthic foraminifera suggests four benthic assemblages (abundance zones) which correlated with their equivalents in the study area and neighboring areas. Therefore, a Middle Lutetian age (similar to 45.8 Ma) is proposed for Observatory Formation which dated back to the Bartonian. While, the Qurn Formation is assigned to late Bartonian-early Priabonian age with paraconformity (similar to 3.6 Ma) between the Observatory and Qurn formations as the result of tectonic instability at the late of Lutetian age. All of the recorded planktic species discontinue at the upper Eocene Maadi Formation of Priabonian age where the environment turned more shallowing inconsistent with planktic habitat. The Lutetian/Bartonian and Bartonian/Priabonian stage bounderies have been also discussed.
英文关键词	Oceanography Geology
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000473561400104
WOS关键词	PLANKTONIC FORAMINIFERAL BIOSTRATIGRAPHY ; LARGER BENTHIC FORAMINIFERA ; DEPOSITIONAL SEQUENCES ; CLIMATIC OPTIMUM ; FAYUM PROVINCE ; GEBEL MOKATTAM ; PALEOBIOGEOGRAPHY ; SECTION ; PALEOBATHYMETRY ; PALEOECOLOGY
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333646
作者单位	[Hassan, Hatem F.; Korin, Asmaa H.] Port Said Univ, Fac Sci, Dept Geol, Port Fouad, Port Said Gover, Egypt
推荐引用方式 GB/T 7714	Hassan, Hatem F.,Korin, Asmaa H.. Contribution to the biostratigraphy of the Middle-Upper Eocene rock units at North Eastern Desert; an integrated micropaleontological approach[J],2019,5(5).
APA	Hassan, Hatem F.,&Korin, Asmaa H..(2019).Contribution to the biostratigraphy of the Middle-Upper Eocene rock units at North Eastern Desert; an integrated micropaleontological approach.HELIYON,5(5).
MLA	Hassan, Hatem F.,et al."Contribution to the biostratigraphy of the Middle-Upper Eocene rock units at North Eastern Desert; an integrated micropaleontological approach".HELIYON 5.5(2019).