干旱区生态环境知识资源中心(Arid): A Cretaceous dinoflagellate cyst palynozonation of northern Egypt

Arid

DOI	10.1080/01916122.2018.1449029
	A Cretaceous dinoflagellate cyst palynozonation of northern Egypt
	Tahoun, Sameh S.1; Ied, Ibrahim M.2
通讯作者	Tahoun, Sameh S.
来源期刊	PALYNOLOGY
ISSN	0191-6122
EISSN	1558-9188
出版年	2019
卷号	43 期号:3 页码:394-410
英文摘要	The multiplicity of dinoflagellate cyst biozones in Cretaceous rocks limits their correlation applications, and the variations in the scientific bases of such zonations complicates age determinations and limits the validity of reliable inter-basinal correlations. The present work provides a useful summary of the dinoflagellate cyst occurrence data in Egypt and a proposed working Egyptian biozonation scheme for the area. The most diagnostic dinoflagellate cyst bioevents, in a definite time interval which occurs widely in most of the studied Egyptian, North African and Tethyan sections, are selected to be marker taxa for the erected zones. The eastern Canadian and northern European data consistently show much higher range tops for the dinoflagellate cysts at those high latitudes. The comparison and correlation of the contemporaneous dinoflagellate cyst range tops from Egypt and geographically neighbouring North African areas are vital for selecting widely distributed marker taxa and testing their validity and applicability to intercontinental correlations in the Tethyan Realm. Based on 29 wells located across Northern Egypt, this work provides a potentially useful scheme that unifies the different previously established dinoflagellate cyst palynozonation frameworks for Cretaceous rocks. The index palyno-events represented by the last occurrence datums (LODs) of the marker dinoflagellate cyst taxa are carefully picked from palynostratigraphies established earlier and methodically, consistently used to create a new regional palynostratigraphical scheme for all of the northern Egyptian territory. Ten dinoflagellate cyst interval zones were identified and described; these are, in descending stratigraphic order from youngest to oldest, Dinogymnium acuminatum (Maastrichtian-Campanian), Odontochitina operculata (Santonian-Coniacian), Cyclonephelium vannophorum (Turonian), Dinopterygium cladoides (late-middle Cenomanian), Coronifera oceanica (middle-early Cenomanian), Oligosphaeridium complex (late-middle Albian), Subtilisphaera perlucida (early Albian), Cribroperidinium orthoceras or C. edwardsii (Aptian-late Barremian), Muderongia simplex or Pesudoceratium anaphrissum (Barremian-late Hauterivian) and Systematophora silybum (Hauterivian-Berriasian).
英文关键词	dinoflagellate cysts biozonation Cretaceous northern Egypt
类型	Article
语种	英语
国家	Egypt
收录类别	SCI-E
WOS记录号	WOS:000473514000004
WOS关键词	OCEANIC ANOXIC EVENT ; TUNIS 1X BOREHOLE ; WESTERN-DESERT ; OIL-FIELD ; EASTERN DESERT ; PALYNOLOGY ; BIOSTRATIGRAPHY ; STRATIGRAPHY ; WELL ; PALYNOSTRATIGRAPHY
WOS类目	Plant Sciences ; Paleontology
WOS研究方向	Plant Sciences ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217877
作者单位	1.Cairo Univ, Fac Sci, Geol Dept, POB 12613, Giza, Egypt; 2.Zagazig Univ, Fac Sci, Geol Dept, Zagazig, Egypt
推荐引用方式 GB/T 7714	Tahoun, Sameh S.,Ied, Ibrahim M.. A Cretaceous dinoflagellate cyst palynozonation of northern Egypt[J],2019,43(3):394-410.
APA	Tahoun, Sameh S.,&Ied, Ibrahim M..(2019).A Cretaceous dinoflagellate cyst palynozonation of northern Egypt.PALYNOLOGY,43(3),394-410.
MLA	Tahoun, Sameh S.,et al."A Cretaceous dinoflagellate cyst palynozonation of northern Egypt".PALYNOLOGY 43.3(2019):394-410.