Arid
DOI10.1007/s12517-014-1407-x
Ultramafic rocks in Gabal El-Rubshi, Central Eastern Desert, Egypt: petrography, mineral chemistry, and geochemistry constraints
El-Desoky, Hatem M.1; Khalil, Ahmed E.2; Salem, Abdel Karim A.2
通讯作者Khalil, Ahmed E.
来源期刊ARABIAN JOURNAL OF GEOSCIENCES
ISSN1866-7511
EISSN1866-7538
出版年2015
卷号8期号:5页码:2607-2631
英文摘要

Petrographic, mineral chemistry, and geochemical studies of the ultramafic rocks from the El-Rubshi range, the main ophiolitic outcrop of the Neoproterozoic (Cryogenian) Complex in Central Eastern Desert of Egypt, provide new petrogenetic data evidence on the nature of the fluids that interacted with an original mantle peridotite. Certain primary features and chemical parameters are maintained even after their multistage histories of alteration, deformation, strain, and metamorphism. Chemo-metamorphic conditions and textures of the studied serpentinites and amphibolites show the principal events of recrystallization and metasomatism, but the diagnostic phases associated with the high pressure events related to subduction were erased. The occurrences of chrome spinels are relatively abundant in the oceanic domain ophiolites. The ophiolitic (serpentinite and amphibolite) rocks show extensive alteration, including hydration, carbonization, and serpentinization of the ultramafic rocks and amphibolization and chloritization of the basic rocks. Like arc-related rocks, the Ti contents of oceanic ophiolites are low in most samples but slightly higher in a few. Mantle heterogeneities may have caused the components with diverse geochemical signatures that are indicative of tholeiitic-komatiitic rocks, mid-ocean ridge basalts, and the enriched rocks of the oceanic islands or seamounts. Normalized trace element patterns of the studied serpentinite and amphibolite samples are characteristic of peridotites from both supra-subduction (SSZ) and mid-ocean ridge (MOR) zones. The pyroxenites are magmatic intruded within the El-Rubshi serpentinites and amphibolites, tholeiitic magma, and within-plate tholeiite environment.


英文关键词Serpentinite Amphibolite Pyroxenite Ophiolite Petrography Geochemistry Mineral chemistry
类型Article
语种英语
国家Egypt
收录类别SCI-E
WOS记录号WOS:000354609000016
WOS关键词MID-ATLANTIC RIDGE ; PODIFORM CHROMITITE ; ISLANDS OPHIOLITE ; MANTLE SECTION ; ARC MANTLE ; CR-SPINEL ; ORIGIN ; CLASSIFICATION ; METAMORPHISM ; SERPENTINITES
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/2XILL650/185886
作者单位1.Al Azhar Univ, Dept Geol, Fac Sci, Cairo, Egypt;
2.Natl Res Ctr, Dept Geol, Cairo, Egypt
推荐引用方式
GB/T 7714
El-Desoky, Hatem M.,Khalil, Ahmed E.,Salem, Abdel Karim A.. Ultramafic rocks in Gabal El-Rubshi, Central Eastern Desert, Egypt: petrography, mineral chemistry, and geochemistry constraints[J],2015,8(5):2607-2631.
APA El-Desoky, Hatem M.,Khalil, Ahmed E.,&Salem, Abdel Karim A..(2015).Ultramafic rocks in Gabal El-Rubshi, Central Eastern Desert, Egypt: petrography, mineral chemistry, and geochemistry constraints.ARABIAN JOURNAL OF GEOSCIENCES,8(5),2607-2631.
MLA El-Desoky, Hatem M.,et al."Ultramafic rocks in Gabal El-Rubshi, Central Eastern Desert, Egypt: petrography, mineral chemistry, and geochemistry constraints".ARABIAN JOURNAL OF GEOSCIENCES 8.5(2015):2607-2631.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[El-Desoky, Hatem M.]的文章
[Khalil, Ahmed E.]的文章
[Salem, Abdel Karim A.]的文章
百度学术
百度学术中相似的文章
[El-Desoky, Hatem M.]的文章
[Khalil, Ahmed E.]的文章
[Salem, Abdel Karim A.]的文章
必应学术
必应学术中相似的文章
[El-Desoky, Hatem M.]的文章
[Khalil, Ahmed E.]的文章
[Salem, Abdel Karim A.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。