Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1144/gsjgs.153.5.0705 |
Pan-African magmatism in the Wadi El-Imra district, Central Eastern Desert, Egypt: Geochemistry and tectonic environment | |
Furnes, H; ElSayed, MM; Khalil, SO; Hassanen, MA | |
通讯作者 | Furnes, H |
来源期刊 | JOURNAL OF THE GEOLOGICAL SOCIETY
![]() |
ISSN | 0016-7649 |
出版年 | 1996 |
卷号 | 153页码:705-718 |
英文摘要 | The Late Proterozoic rocks of the Wadi El-Imra district of the Central Eastern Desert, Egypt, comprise a metagabbro-diorite complex (oldest) and Older and Younger Granitoid complexes. Trace element characteristics show that the basic and granitoid rocks are of calc-alkaline affinity, but some of the Younger Granitoids grade into alkaline granites. The epsilon(Nd) values of the the basic and granitoid rocks range from +8.3 to +4.9, and Nd model ages are younger or rather similar to crystallization ages. These data suggest a predominant depleted mantle derivation, indicating formation by subduction in an oceanic setting. REE patterns of the granitoid rocks suggest different modes of petrogenesis. This, coupled with the occurrence of amphibolite xenoliths in the Older Granitoids, may indicate that some of these rocks represent partial melts from basic rocks that have been amphibolitized at deep crustal levels of the oceanic are. |
英文关键词 | Egypt Pan-African Orogeny igneous activity trace elements isotopes |
类型 | Article |
语种 | 英语 |
国家 | EGYPT |
收录类别 | SCI-E |
WOS记录号 | WOS:A1996VJ73400009 |
WOS关键词 | ARABIAN SHIELD ; NUBIAN SHIELD ; ISOTOPE SYSTEMATICS ; CRUSTAL EVOLUTION ; SINAI PENINSULA ; VOLCANIC-ROCKS ; TRACE-ELEMENTS ; GRANITIC-ROCKS ; IGNEOUS ROCKS ; ISLAND ARCS |
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/2XILL650/133204 |
作者单位 | (1)UNIV ALEXANDRIA,FAC SCI,DEPT GEOL,ALEXANDRIA,EGYPT |
推荐引用方式 GB/T 7714 | Furnes, H,ElSayed, MM,Khalil, SO,et al. Pan-African magmatism in the Wadi El-Imra district, Central Eastern Desert, Egypt: Geochemistry and tectonic environment[J],1996,153:705-718. |
APA | Furnes, H,ElSayed, MM,Khalil, SO,&Hassanen, MA.(1996).Pan-African magmatism in the Wadi El-Imra district, Central Eastern Desert, Egypt: Geochemistry and tectonic environment.JOURNAL OF THE GEOLOGICAL SOCIETY,153,705-718. |
MLA | Furnes, H,et al."Pan-African magmatism in the Wadi El-Imra district, Central Eastern Desert, Egypt: Geochemistry and tectonic environment".JOURNAL OF THE GEOLOGICAL SOCIETY 153(1996):705-718. |
条目包含的文件 | 条目无相关文件。 |
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。