Major and trace elements in some granitic rocks southeastern At-Taif area, Saudi Arabia - their implications to magma genesis and tectonic setting
The Pan-African granites southeast At-Taif area represent the last episode in the Hijaz tectonic cycle. Granites are the youngest and most abundant rock unit in the studied area. Diorite and metamorphic rocks are mainly enclosed within these granites. Major element studies have revealed the calc-alk...
Elmentve itt :
| Szerző: | |
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| Dokumentumtípus: | Cikk |
| Megjelent: |
University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Szeged
1985
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| Sorozat: | Acta mineralogica-petrographica
27 |
| Kulcsszavak: | Kőzettan, Ásványtan, Földtan |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/24723 |
| Tartalmi kivonat: | The Pan-African granites southeast At-Taif area represent the last episode in the Hijaz tectonic cycle. Granites are the youngest and most abundant rock unit in the studied area. Diorite and metamorphic rocks are mainly enclosed within these granites. Major element studies have revealed the calc-alkaline nature of the examined granites and diorite. The trend of differentiation of these rocks is similar to that recognized in many worldwide studies of calc-alkaline rocks. Chemical data suggest that the granitic rocks were evolved in a compressional environment by partial melting of the lower crust. The intermediate rocks might have been derived by interaction of melts derived from the oceanic crust and mantle with the rising magmas. |
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| Terjedelem/Fizikai jellemzők: | 5-16 |
| ISSN: | 0365-8066 |