干旱区生态环境知识资源中心(Arid): New insights into stratigraphy and paleoenvironment of the Upper Cretaceous-Eocene succession, Farafra Oasis, Western Desert, Egypt

Arid

DOI	10.1016/j.jafrearsci.2020.104096
	New insights into stratigraphy and paleoenvironment of the Upper Cretaceous-Eocene succession, Farafra Oasis, Western Desert, Egypt
	Mahfouz, Kamel H.; El-Sheikh, Islam; Obaidalla, Nageh A.; Shreif, Abeer
通讯作者	Mahfouz, KH (corresponding author), Al Azhar Univ, Fac Sci, Geol Dept, Assiut Branch, Assiut 71524, Egypt.
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2021
卷号	175
英文摘要	Detailed field, litho-, bio-, sequence stratigraphy, and paleoenvironmental studies are carried out on the Aqabaat section, Farafra Oasis, Western Desert, Egypt. Lithostratigraphically, the Khoman Formation is here differentiated for the first time into three new distinctive members, which are easily detected at the field: the White Desert (at base), the Gunna (at middle), and the Aqabaat (at top). Biostratigraphically, six planktonic foraminiferal zones and subzones are here identified ranging in age from Maastrichtian to Ypresian. The foraminiferal indices, as well as the benthonic foraminiferal biofacies, indicated an outer neritic paleoenvironmental condition of the Maastrichtian rocks interrupted with shallowing of the relative sea-level at some intervals, especially at the upper parts. These shallowing settings are due to the impact of three syn-sedimentary tectonic events (I, II, and III), which are related to the Syrian Arc orogeny. The Tectonic Event I had a regional impact and led to form a positive structure in the sedimentary basin at the Cretaceous/Paleogene (K/Pg) boundary. The Tectonic Event II and III synchronized with the Danian/Selandian (D/S) and Paleocene/Eocene (P/E) boundaries, respectively. Four depositional sequences (SQ1-SQ4) are defined separated by four sequence boundaries (SB1-SB4) covering the Maastrichtian-Eocene sequence.
英文关键词	Khoman Formation Upper Cretaceous-Eocene Planktonic and benthonic foraminifera Paleoenvironment Syn-sedimentary tectonic events Farafra Oasis Egypt
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000629493900009
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350634
作者单位	[Mahfouz, Kamel H.; El-Sheikh, Islam] Al Azhar Univ, Fac Sci, Geol Dept, Assiut Branch, Assiut 71524, Egypt; [Obaidalla, Nageh A.] Assiut Univ, Fac Sci, Geol Dept, Assiut 71516, Egypt; [Shreif, Abeer] Ain Shams Univ, Fac Educ, Dept Biol & Geol Sci, Cairo, Egypt
推荐引用方式 GB/T 7714	Mahfouz, Kamel H.,El-Sheikh, Islam,Obaidalla, Nageh A.,et al. New insights into stratigraphy and paleoenvironment of the Upper Cretaceous-Eocene succession, Farafra Oasis, Western Desert, Egypt[J],2021,175.
APA	Mahfouz, Kamel H.,El-Sheikh, Islam,Obaidalla, Nageh A.,&Shreif, Abeer.(2021).New insights into stratigraphy and paleoenvironment of the Upper Cretaceous-Eocene succession, Farafra Oasis, Western Desert, Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,175.
MLA	Mahfouz, Kamel H.,et al."New insights into stratigraphy and paleoenvironment of the Upper Cretaceous-Eocene succession, Farafra Oasis, Western Desert, Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 175(2021).