Arid
DOI10.1007/s10347-011-0280-2
Depositional environments and facies development of the Cenomanian-Turonian Galala and Maghra el Hadida formations of the Southern Galala Plateau (Upper Cretaceous, Eastern Desert, Egypt)
Wilmsen, Markus1; Nagm, Emad2
通讯作者Wilmsen, Markus
来源期刊FACIES
ISSN0172-9179
出版年2012
卷号58期号:2页码:229-247
英文摘要

The Cenomanian-Turonian (Upper Cretaceous) Galala and Maghra el Hadida formations of the Southern Galala Plateau in Wadi Araba (northern Eastern Desert, Egypt) represent marine depositional systems developing in response to the early Late Cretaceous transgression at the southern margin of the Neotethyan Ocean in tropical paleolatitudes. A facies analysis (litho-, bio- and microfacies) of these successions shows the presence of 22 facies types (FTs, six are related to the Galala Formation, while the Maghra el Hadida Formation is represented by 16 FTs). The Galala Formation was deposited in a fully marine lagoonal environment developing in response to a latest Middle to early Late Cenomanian transgression. The rich suspension- and deposit-feeding macrobenthos of the Galala Formation indicate meso- to eutrophic (i.e., green water) conditions. The facies types of the uppermost Cenomanian-Turonian Maghra el Hadida Formation suggest deposition on a homoclinal carbonate ramp with sub-environments ranging from deep-subtidal basin to intertidal back-ramp. Major and rapid shifts in depositional environments, related to (relative) sea-level changes, occurred in the mid-Late Cenomanian, the Early-Middle Turonian boundary interval, the middle part of the Middle Turonian and the Middle-Late Turonian boundary interval.


英文关键词Late Cretaceous Microfacies Biofacies Lithofacies Eastern Desert Egypt
类型Article
语种英语
国家Germany ; Egypt
收录类别SCI-E
WOS记录号WOS:000301844600005
WOS关键词SEQUENCE STRATIGRAPHY ; PLATFORM CONFIGURATION ; NORTHERN GERMANY ; CARBONATE SHELF ; CENTRAL TUNISIA ; SINAI ; BIOSTRATIGRAPHY ; SYSTEM ; BASIN ; AREA
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/2XILL650/172322
作者单位1.Museum Mineral & Geol, Sekt Palaozool, D-01109 Dresden, Germany;
2.Al Azhar Univ, Fac Sci, Dept Geol, Assiut, Egypt
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GB/T 7714
Wilmsen, Markus,Nagm, Emad. Depositional environments and facies development of the Cenomanian-Turonian Galala and Maghra el Hadida formations of the Southern Galala Plateau (Upper Cretaceous, Eastern Desert, Egypt)[J],2012,58(2):229-247.
APA Wilmsen, Markus,&Nagm, Emad.(2012).Depositional environments and facies development of the Cenomanian-Turonian Galala and Maghra el Hadida formations of the Southern Galala Plateau (Upper Cretaceous, Eastern Desert, Egypt).FACIES,58(2),229-247.
MLA Wilmsen, Markus,et al."Depositional environments and facies development of the Cenomanian-Turonian Galala and Maghra el Hadida formations of the Southern Galala Plateau (Upper Cretaceous, Eastern Desert, Egypt)".FACIES 58.2(2012):229-247.
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