干旱区生态环境知识资源中心(Arid): Micropalaeontological and isotopic analyses of the middle Palaeocene succession at Gebel Nezzi (Luxor, Egypt): Implications for eustatic changes

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DOI	10.1002/gj.3240
	Micropalaeontological and isotopic analyses of the middle Palaeocene succession at Gebel Nezzi (Luxor, Egypt): Implications for eustatic changes
	Farouk, Sherif 1; Askalany, Mohamed 2; Ahmad, Fayez 3; Youssef, Mohamed 2,4; Taha, Saida 2; El-Sorogy, Abdelbaset 4,5
通讯作者	Farouk, Sherif
来源期刊	GEOLOGICAL JOURNAL
ISSN	0072-1050
EISSN	1099-1034
出版年	2019
卷号	54 期号:3 页码:1435-1453
英文摘要	Gebel Nezzi (Upper Nile Valley, Egypt) was chosen to study the middle Palaeocene planktonic foraminiferans, nannoplankton contents, benthic foraminiferans, and stable isotopes to provide additional information into sea-level changes. Two negative excursions are recorded that are associated with a sharp change in palaeoenvironmental conditions, representing significant global palaeoceanographic, palaeoclimatic, and eustatic events observed at other sites around the world. They are characterized by a drop in total foraminiferal abundance associated with a drop in the type, species richness, frequency, and diversity of foraminifers. The first negative excursion of -0.6 parts per thousand C-13 and -0.5 O-18 occurs during the Late Danian Event (LDE) almost near the upper part of the planktonic foraminiferal P3a Subzone and within the calcareous nannofossil NTp8A Subzone at the top of the lower third of Chron C26r. It is dominated by shallow-water benthic foraminiferans of the Neoeponides duwi biofacies. The Danian-Selandian boundary lies directly above the LDE within the top of the nannofossil Zone NP4, and within the planktonic foraminiferal Subzone P3b with significant increases in angular morozovellids associated with the earliest Cenozoic hyperthermals. The second negative excursion of -0.6 parts per thousand C-13 and -2.2 O-18 occurs near the top of the Dakhla Formation and is dominated by the benthic foraminiferal Bulimina farafraensis biofacies within the upper part of the calcareous nannofossil NTp9 Subzone and upper part of the planktonic foraminiferal P4a Subzone. These negative excursions associated with a well-known falling sea level and are an important tool for regional correlation. Fluctuations in the foraminiferal population, benthic biofacies, C-13 and O-18 isotopes and carbonate content reflect three fourth-order transgressive-regressive (T-R) sequences response to eustatic changes in the Egyptian stable tectonic shelf.
英文关键词	calcareous nannofossils Danian Egypt foraminifers Gebel Nezzi Luxor sea-level change Selandian stable isotopes Thanetian
类型	Article
语种	英语
国家	Egypt ; Jordan ; Saudi Arabia
收录类别	SCI-E
WOS记录号	WOS:000465392600019
WOS关键词	DANIAN-SELANDIAN TRANSITION ; SEA-LEVEL CHANGE ; CALCAREOUS NANNOFOSSIL ; DANIAN/SELANDIAN BOUNDARY ; BENTHIC FORAMINIFERA ; DABABIYA COREHOLE ; WESTERN DESERT ; CENTRAL SINAI ; NILE BASIN ; BIOSTRATIGRAPHY
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	King Saud University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215958
作者单位	1.Egyptian Petr Res Inst, Explorat Dept, Cairo, Egypt; 2.South Valley Univ, Dept Geol, Fac Sci, Qena, Egypt; 3.Hashemite Univ, Earth & Environm Sci Dept, Zarqa, Jordan; 4.King Saud Univ, Coll Sci, Geol & Geophys Dept, Riyadh, Saudi Arabia; 5.Zagazig Univ, Dept Geol, Fac Sci, Zagazig, Egypt
推荐引用方式 GB/T 7714	Farouk, Sherif,Askalany, Mohamed,Ahmad, Fayez,et al. Micropalaeontological and isotopic analyses of the middle Palaeocene succession at Gebel Nezzi (Luxor, Egypt): Implications for eustatic changes[J]. King Saud University,2019,54(3):1435-1453.
APA	Farouk, Sherif,Askalany, Mohamed,Ahmad, Fayez,Youssef, Mohamed,Taha, Saida,&El-Sorogy, Abdelbaset.(2019).Micropalaeontological and isotopic analyses of the middle Palaeocene succession at Gebel Nezzi (Luxor, Egypt): Implications for eustatic changes.GEOLOGICAL JOURNAL,54(3),1435-1453.
MLA	Farouk, Sherif,et al."Micropalaeontological and isotopic analyses of the middle Palaeocene succession at Gebel Nezzi (Luxor, Egypt): Implications for eustatic changes".GEOLOGICAL JOURNAL 54.3(2019):1435-1453.