Petrography and chemistry of the granitic rocks and the overlying Nubian sandstones in Bir Um Hibal area, southeast of Aswan, Eastern Desert, Egypt
The present work deals with detailed petrographic and chemical studies on the granitic rocks and the overlying Nubian Sandstones in Bir Urn Hibal area, South Eastern Desert of Egypt. Fort the first time, it is concluded that the porphyritic Aswan type granites are not only restricted to Aswan Provin...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Szeged
1979
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| Sorozat: | Acta mineralogica-petrographica
24 No. 1 |
| Kulcsszavak: | Kőzettan, Ásványtan, Földtan |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/24643 |
| Tartalmi kivonat: | The present work deals with detailed petrographic and chemical studies on the granitic rocks and the overlying Nubian Sandstones in Bir Urn Hibal area, South Eastern Desert of Egypt. Fort the first time, it is concluded that the porphyritic Aswan type granites are not only restricted to Aswan Province, but they extend further south, at least, till Bir Um Hibal area. The overlying Nubian Sandstones are proved to be "sublitharenites". They contain considerable amounts of rock fragments from different types; the most common of which are the granite, granodiorite and gneiss fragments. These Nubian Sandstones were most probably deposited in a fresh water environment. The detailed petrographical and chemical studies showed that the Nubian Sandstones of Bir Um Hibal area are submature (subgreywacke type) and were mostly derived from the pre-existing underlying basement rocks. |
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| Terjedelem/Fizikai jellemzők: | 41-62 |
| ISSN: | 0365-8066 |