Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1111/1755-6724.14706 |
| Intrusion-related Gold Deposits in Egypt | |
| Botros, Nagy Shawky | |
| 通讯作者 | Botros, NS (corresponding author), Egyptian Mineral Resources Author, Cairo, Egypt. |
| 来源期刊 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
 |
| ISSN | 1000-9515 |
| EISSN | 1755-6724 |
| 出版年 | 2021 |
| 卷号 | 95期号:3页码:1033-1055 |
| 英文摘要 | Intrusion-related gold deposits (IRGDs) occur in the Eastern Desert (ED) of Egypt within magmatic districts that are exploited for tungsten and tin mineralization. IRGDs and intrusion-related rare metal deposits (IRRMDs) are almost invariably linked with the late to post collisional Younger Granites (YGs) that have three successive phases (I, II and III). At similar to 635-630 Ma, the ED underwent a transition in deformation style from compressional to extensional and a switch from subduction with crustal thickening to delamination with crustal thinning. This transition was concurrent with the emplacement of a short magmatic pulse (similar to 635-630 Ma) that represents a transition between orogenic gold deposits and IRGDs. K-rich calc alkaline granites (phase I and II of the YGs) hosting IRGDs like the Hangalia deposit were emplaced during the time span 630-610 Ma. Alkaline magmatism began at 610 Ma, coexisting with the K-rich calc-alkaline magmatism over the 610-590 Ma time span, where the Fawakhir (598 +/- 3 Ma) and Um Had (596 +/- 2 Ma) granites that host the IRGDs were emplaced. In time, the alkaline magmatism became more alkaline giving rise to phase III of the YGs that hosts IRRMDs. A distinct metallogenic epoch comprising both IRGDs and IRRMDs, was undergoing extreme growth at similar to 600 Ma. |
| 英文关键词 | intrusion-related gold deposits intrusion-related rare metal deposits delamination crustal melting metallogenic epoch similar to 600 Ma Younger Granites |
| 类型 | Review |
| 语种 | 英语 |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000667267600026 |
| WOS关键词 | ARABIAN-NUBIAN SHIELD ; CENTRAL EASTERN DESERT ; A-TYPE GRANITES ; U-PB ZIRCON ; MASSIVE SULFIDE DEPOSITS ; RARE METAL-BEARING ; NAJD FAULT SYSTEM ; PAN-AFRICAN ; OROGENIC-GOLD ; VOLCANIC-ROCKS |
| 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/2XILL650/349258 |
| 作者单位 | [Botros, Nagy Shawky] Egyptian Mineral Resources Author, Cairo, Egypt |
| 推荐引用方式 GB/T 7714 | Botros, Nagy Shawky. Intrusion-related Gold Deposits in Egypt[J],2021,95(3):1033-1055. |
| APA | Botros, Nagy Shawky.(2021).Intrusion-related Gold Deposits in Egypt.ACTA GEOLOGICA SINICA-ENGLISH EDITION,95(3),1033-1055. |
| MLA | Botros, Nagy Shawky."Intrusion-related Gold Deposits in Egypt".ACTA GEOLOGICA SINICA-ENGLISH EDITION 95.3(2021):1033-1055. |
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