干旱区生态环境知识资源中心(Arid): Facies analysis, depositional architecture, and sequence stratigraphy of the upper Abu Roash G Member (Late Cenomanian), Sitra Field, Western Desert, Egypt

Arid

DOI	10.1007/s12517-021-07441-4
	Facies analysis, depositional architecture, and sequence stratigraphy of the upper Abu Roash G Member (Late Cenomanian), Sitra Field, Western Desert, Egypt
	Assal, Ehab M.; Selim, El Sayed I.; Hedaihed, Sarah M.
通讯作者	Assal, EM (corresponding author), Damietta Univ, Fac Sci, Dept Geol, New Damietta 34517, Egypt.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:12
英文摘要	The Abu Roash G Member constitutes the most important hydrocarbon reservoir-producing interval in the Sitra Field, Western Desert, Egypt. A multidisciplinary approach was applied to reconstruct a depositional model and stratigraphic architecture of the upper unit of the Abu Roash G Member from the Sitra field integrating core analysis and petrography. Petrographically, the studied sandstones are classified as quartz arenite and subarkose types. Sedimentological and ichnological analysis indicates that deposition took place in a tide-dominated embayment oriented northwards to the sea. Within this depositional model, ten facies and five facies associations are distinguished. The channelized cross-bedded sandstone facies (FA1a) reflects a tide-dominated channel environment. The bioturbated marine sandstone, with shell debris (FA2a) and bioturbated, massive to low-angle planar laminated sandstone facies (FA2b), characterizes the tidal-bar environment. The bioturbated sandstone facies (FA3a) and carbonaceous shale and laminated mudstone facies (FA3b) suggest accumulation in a lagoon/bay-fill environment. The wave and current-rippled sandstone facies (FA4a), flaser-bedded heterolithics (FA4b), and bioturbated muddy heterolithics (FA4c) indicate deposition in a tidal-flat environment. The sandstone with plant debris facies (FA5a) and carbonaceous mudstone and coal seams (FA5b) indicate a coastal plain/swamp environment. The upper Abu Roash G Member forms an overall transgressive succession of stacked transgressive-regressive cycles bounded by regional erosional surfaces, mostly produced by tidal ravinement. It consists of four high-frequency (fourth-order) depositional sequences bounded by regional erosion surfaces. These sequences are dominated by transgressive (TST) and highstand normal regressive (HST) systems tracts stacked into an overall retrogradational stacking pattern. This stacking pattern is interpreted as being the result of complex interaction between passive thermal subsidence and relative sea-level changes.
英文关键词	Facies analysis Sequence stratigraphy Sitra Field Upper Cenomanian Abu Roash G Member Western Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000677556200036
WOS关键词	INCLINED HETEROLITHIC STRATIFICATION ; ESTUARINE FACIES ; BASIN INVERSION ; GHARADIG BASIN ; NORTHERN EGYPT ; SUEZ RIFT ; EVOLUTION ; SEDIMENTOLOGY ; ICHNOLOGY ; ALBERTA
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/2XILL650/362528
作者单位	[Assal, Ehab M.; Selim, El Sayed I.; Hedaihed, Sarah M.] Damietta Univ, Fac Sci, Dept Geol, New Damietta 34517, Egypt; [Selim, El Sayed I.] Prince Sattam Bin Abdulaziz Univ, Dept Phys, Coll Sci & Humanities Al Kharj, Al Kharj 11942, Saudi Arabia
推荐引用方式 GB/T 7714	Assal, Ehab M.,Selim, El Sayed I.,Hedaihed, Sarah M.. Facies analysis, depositional architecture, and sequence stratigraphy of the upper Abu Roash G Member (Late Cenomanian), Sitra Field, Western Desert, Egypt[J],2021,14(12).
APA	Assal, Ehab M.,Selim, El Sayed I.,&Hedaihed, Sarah M..(2021).Facies analysis, depositional architecture, and sequence stratigraphy of the upper Abu Roash G Member (Late Cenomanian), Sitra Field, Western Desert, Egypt.ARABIAN JOURNAL OF GEOSCIENCES,14(12).
MLA	Assal, Ehab M.,et al."Facies analysis, depositional architecture, and sequence stratigraphy of the upper Abu Roash G Member (Late Cenomanian), Sitra Field, Western Desert, Egypt".ARABIAN JOURNAL OF GEOSCIENCES 14.12(2021).