Arid
DOI10.1016/j.pgeola.2016.03.005
Architecture and evolution of a tectonically-induced Middle Eocene clastic wedge on the southern Tethyan carbonate shelf, North Eastern Desert, Egypt
Selim, S. S.; Darwish, M.; Abu Khadrah, A. M.
通讯作者Selim, S. S.
来源期刊PROCEEDINGS OF THE GEOLOGISTS ASSOCIATION
ISSN0016-7878
出版年2016
卷号127期号:3页码:377-390
英文摘要

The North Eastern Desert Basin is a series of interconnected basins located within the internal zone of the Syrian arc inversion belts. Throughout the Middle Eocene the basin was subject to pulses of transpression tectonics which led to development of a Middle Eocene clastic wedge. It is well exposed in the Shabraweet area, North Eastern Desert (Egypt). Detailed sedimentological study including facies analysis, and identification paleo-drainage directions were carried out in order to evaluate the development stages and architecture of the Middle Eocene clastic wedge and response to basin inversion. This was achieved through detailed description and measurement of eight surface profiles in the Shabraweet area. Twelve fades have been identified and can be arranged into nine facies associations. The overall architecture can be differentiated into 5 discontinuity-based sequences, described from oldest to youngest. Sequence 1 shows variation from a stream-dominated delta in the north to lagoonal deposits through the delta fringes. Sequence 2 shows downstream variation from alluvial channels, to alluvial fringes, and to distal floodbasin. Sequence 3 shows downstream variation from amalgamated fluvial channels to alluvial plain deposits. Sequence 4 shows downstream variation from deltaic to lagoon margin deposits. Sequence 5 shows variation from estuarine to offshore lagoonal environments. Tectonic inversion is interpreted as the primary control of the development of Middle Eocene clastic wedge. The sequences 1-3 reflect a progressive inversion with complete emergence and establishment of an alluvial plain, while the upper sequences 4 and 5 reflect a tectonic quiescence and gradual return to marine conditions. (C) 2016 The Geologists’ Association. Published by Elsevier Ltd. All rights reserved.


英文关键词Middle Eocene Shabraweet Tethyan shelf Syrian arc North Eastern Desert Egypt
类型Article
语种英语
国家Egypt
收录类别SCI-E
WOS记录号WOS:000380629800011
WOS关键词BASIN INVERSION ; ALLUVIAL-LACUSTRINE ; SEDIMENTARY BASIN ; RIFT BASIN ; DEPOSITS ; SYSTEM ; DEFORMATION ; STREAM ; ORIGIN ; KOREA
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/2XILL650/195727
作者单位Cairo Univ, Fac Sci, Dept Geol, Giza 12613, Egypt
推荐引用方式
GB/T 7714
Selim, S. S.,Darwish, M.,Abu Khadrah, A. M.. Architecture and evolution of a tectonically-induced Middle Eocene clastic wedge on the southern Tethyan carbonate shelf, North Eastern Desert, Egypt[J],2016,127(3):377-390.
APA Selim, S. S.,Darwish, M.,&Abu Khadrah, A. M..(2016).Architecture and evolution of a tectonically-induced Middle Eocene clastic wedge on the southern Tethyan carbonate shelf, North Eastern Desert, Egypt.PROCEEDINGS OF THE GEOLOGISTS ASSOCIATION,127(3),377-390.
MLA Selim, S. S.,et al."Architecture and evolution of a tectonically-induced Middle Eocene clastic wedge on the southern Tethyan carbonate shelf, North Eastern Desert, Egypt".PROCEEDINGS OF THE GEOLOGISTS ASSOCIATION 127.3(2016):377-390.
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