Petrogenesis and Tectonic Implications of the Cryogenian I-Type Granodiorites from Gabgaba Terrane (NE Sudan)
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Petrogenesis and Tectonic Implications of the Cryogenian I-Type Granodiorites from Gabgaba Terrane (NE Sudan)
|
|
| Автор |
Sami, M.
Adam, M. M. A. Lv, X. Lasheen, E. S. R. Ene, A. Zakaly, H. M. H. Alarifi, S. S. Mahdy, N. M. Abdel, Rahman, A. R. A. Saeed, A. Farahat, E. S. Fathy, D. Ali, S. |
|
| Тематика |
CRYOGENIAN
GABGABA TERRANE I-TYPE GRANITE NE SUDAN PARTIAL MELTING ZIRCON U-PB-LU-HF ISOTOPES |
|
| Описание |
The widely distributed granitic intrusions in the Nubian Shield can provide comprehensive data for understanding its crustal evolution. We present new bulk-rock geochemistry and isotopic (zircon U-Pb and Lu-Hf) data from the Haweit granodiorites in the Gabgaba Terrane (NE Sudan). The dated zircons presented a 206Pb/238U Concordia age of 718.5 ± 2.2 Ma, indicating that they crystallized during the Cryogenian. The granodiorites contain both biotite and amphibole as the main mafic constituents. The samples exhibit metaluminous (A/CNK = 0.84–0.94) and calc-alkaline signatures. Their mineralogical composition and remarkable low P2O5, Zr, Ce, and Nb concentrations confirm that they belong to I-type granites. They exhibit subduction-related magma geochemical characters such as enrichment in LILEs and LREEs and depletion in HFSEs and HREEs, with a low (La/Yb)N ratio (3.0–5.9) and apparent negative Nb anomaly. The positive Hf(t) values (+7.34 to +11.21) and young crustal model age (TDMC = 734–985 Ma) indicates a juvenile composition of the granodiorites. The data suggest that the Haweit granodiorites may have formed from partially melting a juvenile low-K mafic source. During subduction, the ascending asthenosphere melts might heat and partially melt the pre-existing lower crust mafic materials to generate the Haweit granodiorites in the middle segment of the Nubian Shield. © 2023 by the authors.
King Saud University, KSU This research was supported by Researchers Supporting Project number (RSP2023R496), King Saud University, Riyadh, Saudi Arabia. The author AE would like to thank “Dunarea de Jos” University of Galati, Romania, INPOLDE infrastructure, for the material and technical support. This research was supported by Researchers Supporting Project number (RSP2023R496), King Saud University, Riyadh, Saudi Arabia. The author A.E. would like to thank “Dunarea de Jos” University of Galati, Romania, INPOLDE infrastructure, for the material and technical support. The authors would like to thank the editors and the reviewers for their precious time, detailed and constructive reviews, and additional comments which significantly improved the manuscript. |
|
| Дата |
2024-04-05T16:19:15Z
2024-04-05T16:19:15Z 2023 |
|
| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
|
| Идентификатор |
Sami, M, Adam, MMA, Lv, X, Lasheen, ESR, Ene, A, Zakaly, HMH, Alarifi, SS, Mahdy, NM, Abdel rahman, ARA, Saeed, A, Farahat, ES, Fathy, D & Ali, S 2023, 'Petrogenesis and Tectonic Implications of the Cryogenian I-Type Granodiorites from Gabgaba Terrane (NE Sudan)', Minerals, Том. 13, № 3, стр. 331. https://doi.org/10.3390/min13030331
Sami, M., Adam, M. M. A., Lv, X., Lasheen, E. S. R., Ene, A., Zakaly, H. M. H., Alarifi, S. S., Mahdy, N. M., Abdel rahman, A. R. A., Saeed, A., Farahat, E. S., Fathy, D., & Ali, S. (2023). Petrogenesis and Tectonic Implications of the Cryogenian I-Type Granodiorites from Gabgaba Terrane (NE Sudan). Minerals, 13(3), 331. https://doi.org/10.3390/min13030331 2075-163X Final All Open Access, Gold https://www.scopus.com/inward/record.uri?eid=2-s2.0-85152364482&doi=10.3390%2fmin13030331&partnerID=40&md5=04177caa1cd6c754a73aa6de241aa859 https://www.mdpi.com/2075-163X/13/3/331/pdf?version=1677482814 http://elar.urfu.ru/handle/10995/130382 10.3390/min13030331 85152364482 000959552400001 |
|
| Язык |
en
|
|
| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
|
| Формат |
application/pdf
|
|
| Издатель |
MDPI
|
|
| Источник |
Minerals
Minerals |
|