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DOI | 10.1007/s12517-012-0623-5 |
Geochemistry and tectonic setting of early Pan-African metamorphosed volcano-sedimentary sequence in southern Solaf zone, SW Sinai, Egypt | |
Ghabrial, Doris Sadek; Samuel, Michael Dawood; Moussa, Hilmy Essa | |
通讯作者 | Ghabrial, Doris Sadek |
来源期刊 | ARABIAN JOURNAL OF GEOSCIENCES
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ISSN | 1866-7511 |
EISSN | 1866-7538 |
出版年 | 2013 |
卷号 | 6期号:10页码:3635-3649 |
英文摘要 | The south Solaf zone in SW Sinai comprises a metasedimentary sequence of metagraywackes intercalated with minor metavolcanic sheets, metasiltstones, meta-arenites, and calc-silicates. The metavolcanics (basalt-andesite) show high- to medium-K calc-alkaline nature. They exhibit distinctive Nb-Ta negative anomalies relative to enriched LILE, being highly similar to active continental margin lavas, but they also have the characteristics of rift-related magmatism. Magmas of similar composition are interpreted to be formed in an extensional environment and their source regions are zones of enriched subcontinental lithosphere. The metasediments are poor to moderate sorting, intercalated to the north with minor impure calcareous layers. Geochemical investigation shows that they are immature to semi-mature sediments derived from a source of mafic to felsic composition. These metasediments are chemically similar to the active continental margins and are comparable to the Feiran gneisses and metagraywackes that were deposited before 800 Ma in an extensional environment. The investigated rocks suffered LP-HT amphibolite facies metamorphism. The P-T estimates using various thermobarometric calibrations gave temperatures of 554-610 A degrees C and pressures of 2.2-4.0 kbar. |
英文关键词 | Pan-African Volcano-sedimentary Geochemistry Tectonic setting Sinai |
类型 | Article |
语种 | 英语 |
国家 | Egypt |
收录类别 | SCI-E |
WOS记录号 | WOS:000324320400004 |
WOS关键词 | ARABIAN-NUBIAN SHIELD ; CRUSTAL EVOLUTION ; NEOPROTEROZOIC METAPELITES ; ISOTOPIC EVIDENCE ; EASTERN DESERT ; ROCKS ; PROVENANCE ; PETROLOGY ; BIOTITE ; BELT |
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/2XILL650/175867 |
作者单位 | Natl Res Ctr, Dept Geol, Cairo, Egypt |
推荐引用方式 GB/T 7714 | Ghabrial, Doris Sadek,Samuel, Michael Dawood,Moussa, Hilmy Essa. Geochemistry and tectonic setting of early Pan-African metamorphosed volcano-sedimentary sequence in southern Solaf zone, SW Sinai, Egypt[J],2013,6(10):3635-3649. |
APA | Ghabrial, Doris Sadek,Samuel, Michael Dawood,&Moussa, Hilmy Essa.(2013).Geochemistry and tectonic setting of early Pan-African metamorphosed volcano-sedimentary sequence in southern Solaf zone, SW Sinai, Egypt.ARABIAN JOURNAL OF GEOSCIENCES,6(10),3635-3649. |
MLA | Ghabrial, Doris Sadek,et al."Geochemistry and tectonic setting of early Pan-African metamorphosed volcano-sedimentary sequence in southern Solaf zone, SW Sinai, Egypt".ARABIAN JOURNAL OF GEOSCIENCES 6.10(2013):3635-3649. |
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