干旱区生态环境知识资源中心(Arid): Maastrichtian-Paleocene successions at Kharga-Dakhla stretch, Western Desert, Egypt: Paleoenvironmental and basin evolution interpretations

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DOI	10.1016/j.jafrearsci.2019.103731
	Maastrichtian-Paleocene successions at Kharga-Dakhla stretch, Western Desert, Egypt: Paleoenvironmental and basin evolution interpretations
	Mahfouz, Kamel H.1; Metwally, Amr A.2
通讯作者	Mahfouz, Kamel H.
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2020
卷号	162
英文摘要	Detailed field, litho-, bio-stratigraphic and paleoenvironmental studies on the Maastrichtian-Paleocene successions exposed at El-Qasr, Abu Tartur, Gabal El-Aguz and Darb Gaga sections at Kharga-Dakhla region, Western Desert, Egypt are attempted. Three rock units are recognized; Dakhla, Kurkur and Tarawan formations. Eight calcareous nannofossil and ten planktonic foraminiferal zones are recorded and integrated to determine a precise age dating. Four benthonic foraminiferal biofacies (A, B, C and D) are reconstructed using the R-mode (species) hierarchical cluster analysis. These biofacies along with the relative abundance of the calcareous nannofossil species are used to interpret the paleoenvironmental conditions as well as the depositional settings prevailed during deposition of the studied successions. The integration of these data led to the identification of significant hiatuses which could be linked to two syn-sedimentary tectonic events (Tectonic Event I and II). Tectonic Event I at the Cretaceous/Paleogene (K/Pg) boundary has a regional effect and led to expose the southern part of the Tethys margin which is represented by the present study area. Throughout the Early Danian, the sedimentary basin could be divided into two sub-basins at El-Qasr and G. El-Aguz sections separated by two sub-marine paleohighs at Abu Tartur and Darb Gaga sections which represented the northern extensions of the southern shallow Garra El-Arbain Facies. The effect of Tectonic Event II initialized at Danian and continued throughout Thanetian. This event is restricted to the eastern part at Darb Gaga and G. El-Aguz sections forming an areal paleohigh at Darb Gaga and a sub-marine paleohigh at G. El-Aguz sections.
英文关键词	Maastrichtian Paleocene Nannofossil and foraminifera Paleoenvironment Basin evolution Syrian Arc Orogeny Kharga-Dakhla region Egypt
类型	Article
语种	英语
国家	Egypt
收录类别	SCI-E
WOS记录号	WOS:000509618000041
WOS关键词	EOCENE THERMAL MAXIMUM ; BENTHONIC FORAMINIFERAL BIOSTRATIGRAPHY ; CALCAREOUS NANNOFOSSIL BIOSTRATIGRAPHY ; CRETACEOUS TERTIARY BOUNDARY ; NORTHERN EASTERN DESERT ; LATEST DANIAN EVENT ; STABLE-ISOTOPES ; SOUTHERN TETHYS ; FARAFRA OASIS ; SIDI NASSEUR
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
EI主题词	2020-02-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312767
作者单位	1.Al Azhar Univ, Fac Sci, Geol Dept, Assiut Branch, Cairo, Egypt; 2.Assiut Univ, Fac Sci, Geol Dept, Assiut 71516, Egypt
推荐引用方式 GB/T 7714	Mahfouz, Kamel H.,Metwally, Amr A.. Maastrichtian-Paleocene successions at Kharga-Dakhla stretch, Western Desert, Egypt: Paleoenvironmental and basin evolution interpretations[J],2020,162.
APA	Mahfouz, Kamel H.,&Metwally, Amr A..(2020).Maastrichtian-Paleocene successions at Kharga-Dakhla stretch, Western Desert, Egypt: Paleoenvironmental and basin evolution interpretations.JOURNAL OF AFRICAN EARTH SCIENCES,162.
MLA	Mahfouz, Kamel H.,et al."Maastrichtian-Paleocene successions at Kharga-Dakhla stretch, Western Desert, Egypt: Paleoenvironmental and basin evolution interpretations".JOURNAL OF AFRICAN EARTH SCIENCES 162(2020).