Arid
DOI10.1016/j.jafrearsci.2017.09.006
Facies analysis and sequence stratigraphy of the Eocene successions, east Beni Suef area, eastern Desert, Egypt
Saber, Shaban G.; Salama, Yasser F.
通讯作者Salama, Yasser F.
来源期刊JOURNAL OF AFRICAN EARTH SCIENCES
ISSN1464-343X
EISSN1879-1956
出版年2017
卷号135页码:173-185
英文摘要

Three Eocene stratigraphic successions east of the Beni Suef area are described and measured. These successions are made up of four rock units that are from base to top: Qarara (upper Lutetian), El Fashn (Bartonian), Beni Suef, and Maadi (Priabonian) formations. A detailed facies and sequence analysis unravels the stratigraphic framework and constructs a depositional model for the Middle-Upper Eocene succession. Ten microfacies types were grouped into four fades associations on a homoclinal ramp that compose the Upper Lutetian-Priabonian succession exposed in the east Beni Suef area. The depositional environment varied from a shallow to deep ramp setting. Four third-order depositional sequences were identified in the studied sections. The sequence boundaries are paleosoil horizons that can be traced throughout the entire outcrop area. Missing biozones are also evidence of the sequence boundaries. The history of these sequences mirrors the eustatic sea-level changes and the local tectonics in the region. Each sequence comprises fades associations that make up lowstand and/or transgressive and highstand systems tracts. The lowstand systems tract (LST) deposits are mainly sandstone facies and in Sequences 3 and 4 at Gabal Abyiad and Gabal Homret Shaibun respectively. The transgressive systems tract (TST) of Sequence 1 is dominated by nummulitic facies at Gabal Diya. The shale, mudstone and wackestone facies with planktic foraminifera and echinoids dominate the TST of Sequences 2 and 3 at Gabal Abyiad and Gabal Homret Shaibun respectively. The highstand systems tract (HST) of the studied sections is characterized by benthic foraminifera and bryozoan wackestone and packstone facies. (C) 2017 Elsevier Ltd. All rights reserved.


英文关键词Eocene Facies Sequence stratigraphy Beni Suef Egypt
类型Article
语种英语
国家Egypt
收录类别SCI-E
WOS记录号WOS:000413879000015
WOS关键词WADI AL-HITAN ; MIDDLE EOCENE ; GLOSSIFUNGITES ICHNOFACIES ; SHABRAWET AREA ; CARBONATE RAMP ; EVOLUTION ; FAYUM ; SINAI ; ROCKS ; BASIN
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/2XILL650/199959
作者单位Beni Suef Univ, Fac Sci, Geol Dept, Salah Salem St, Bani Suwayf 62511, Egypt
推荐引用方式
GB/T 7714
Saber, Shaban G.,Salama, Yasser F.. Facies analysis and sequence stratigraphy of the Eocene successions, east Beni Suef area, eastern Desert, Egypt[J],2017,135:173-185.
APA Saber, Shaban G.,&Salama, Yasser F..(2017).Facies analysis and sequence stratigraphy of the Eocene successions, east Beni Suef area, eastern Desert, Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,135,173-185.
MLA Saber, Shaban G.,et al."Facies analysis and sequence stratigraphy of the Eocene successions, east Beni Suef area, eastern Desert, Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 135(2017):173-185.
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