干旱区生态环境知识资源中心(Arid): Benthic foraminiferal paleoecology of the Maastrichtian succession at the Kharga Oasis, Western Desert, Egypt

Arid

DOI	10.1016/j.cretres.2018.10.007
	Benthic foraminiferal paleoecology of the Maastrichtian succession at the Kharga Oasis, Western Desert, Egypt
	Hewaidy, Abdel Galil A.1; Farouk, Sherif 2; Bazeen, Youssef S.1
通讯作者	Bazeen, Youssef S.
来源期刊	CRETACEOUS RESEARCH
ISSN	0195-6671
EISSN	1095-998X
出版年	2019
卷号	94 页码:152-167
英文摘要	The present work deals with the benthic foraminiferal investigations and analyses of the Maastrichtian succession from two sections in the Kharga Oasis (Naqb El-Rufuf and Gabal Teir), to evaluate the prevailing paleobathymetric and paleoenvironmental conditions. Three benthic foraminiferal assemblages have been distinguished by the R-mode cluster analysis. The first two clusters are dominated by simple walled and complex-walled non-calcareous agglutinated foraminifera, respectively; while the third assemblage is characterized by calcareous agglutinated and calcareous benthic foraminiferal species. The Q-mode Detrended Correspondence Analysis (DCA) of the studied samples indicates five main groups designated as five biofacies (I-V), each with a characteristic faunal structure. The overall dominance of the non-calcareous agglutinated foraminifera and the sporadic occurrence of the calcareous benthic foraminifera suggest deposition in a shallow water environment of restricted brackish, lagoonal, and littoral setting with occasional marine incursions. The distribution of the identified benthic foraminiferal species suggests deposition under oxygen-depleted conditions with high organic matter flux. Surficial epifaunal taxa dominate the benthic assemblages at certain intervals suggesting episodes of stagnation and elevated position of the redox boundary relative to the water/sediment interface. (C) 2018 Elsevier Ltd. All rights reserved.
英文关键词	Agglutinated foraminifera Shallow water Paleoecology Detrended correspondence analysis Maastrichtian Kharga Oasis
类型	Article
语种	英语
国家	Egypt
收录类别	SCI-E
WOS记录号	WOS:000453491200013
WOS关键词	LOWER MAESTRICHTIAN FORAMINIFERA ; PALEOCENE SEA-LEVEL ; NEW-JERSEY ; BENTHONIC FORAMINIFERA ; SEQUENCE STRATIGRAPHY ; PALEOSLOPE MODEL ; DAKHLA OASIS ; BASIN ; MORPHOGROUPS ; FOSSIL
WOS类目	Geology ; Paleontology
WOS研究方向	Geology ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214987
作者单位	1.Al Azhar Univ, Fac Sci, Geol Dept, POB 11884, Cairo, Egypt; 2.Egyptian Petr Res Inst, Explorat Dept, Nasr City, Egypt
推荐引用方式 GB/T 7714	Hewaidy, Abdel Galil A.,Farouk, Sherif,Bazeen, Youssef S.. Benthic foraminiferal paleoecology of the Maastrichtian succession at the Kharga Oasis, Western Desert, Egypt[J],2019,94:152-167.
APA	Hewaidy, Abdel Galil A.,Farouk, Sherif,&Bazeen, Youssef S..(2019).Benthic foraminiferal paleoecology of the Maastrichtian succession at the Kharga Oasis, Western Desert, Egypt.CRETACEOUS RESEARCH,94,152-167.
MLA	Hewaidy, Abdel Galil A.,et al."Benthic foraminiferal paleoecology of the Maastrichtian succession at the Kharga Oasis, Western Desert, Egypt".CRETACEOUS RESEARCH 94(2019):152-167.