The relation between the geochemistry and deep-seated faults of acid plutonites of Egypt
On the basis of the present study, Egyptian granites occurring in the basement rocks are found to comprise mainly six groups, these are: Shaitian, grey, normal pink-red, strongly differentiated pink-red, anomalous pink and Aswan granites. Each of these groups has its own geochemical and structural c...
Elmentve itt :
| Szerzők: | |
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| Dokumentumtípus: | Cikk |
| Megjelent: |
University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Szeged
1974
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| Sorozat: | Acta mineralogica-petrographica
21 No. 2 |
| Kulcsszavak: | Kőzettan, Ásványtan, Földtan, Geokémia |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/24570 |
| Tartalmi kivonat: | On the basis of the present study, Egyptian granites occurring in the basement rocks are found to comprise mainly six groups, these are: Shaitian, grey, normal pink-red, strongly differentiated pink-red, anomalous pink and Aswan granites. Each of these groups has its own geochemical and structural characteristics that make it distinguishable from the others. Shaitian granites are definitely the oldest, while Aswan granites are probably the youngest. To the first time, it is now possible to distinguish, particularly in the field, between the normal pink-red granites (pre- or syn-Hammamat) and the strongly differentiated members (post-Hammamat) previously regarded as one group of rocks. The former are found to be usually emplaced on latitudinal system of deep-seated faults (EN-WS), while the latter have generally longitudinal trends of faults (NW-SE). Chemically, these two groups of granites are related to each other by differentiation in a sense that the pre- or syn-Hammamat members represent normal granites while the post-Hammamat rocks represent their strongly fractionated members. |
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| Terjedelem/Fizikai jellemzők: | 183-190 |
| ISSN: | 0365-8066 |