The ophiolite melange of Wadi Dunquash and Arayis, Eastern desert of Egypt petrogenesis and tectonic evolution /
Wadi Dunqash and Wadi Arayis in the central and southern Eastern Desert of Egypt are characterized by the presence of metamorphosed dismembered ophiolite sequence. This sequence consists of harzburgiteserpentinite, pyroxenite-chlorite schist; normal and sheared metagabbros; metabasalt and meta-andes...
Elmentve itt :
| Szerzők: | |
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| Dokumentumtípus: | Cikk |
| Megjelent: |
University of Szeged, Department of Mineralogy, Geochemistry and Petrology
Szeged
1996
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| Sorozat: | Acta mineralogica-petrographica
37 |
| Kulcsszavak: | Kőzettan, Ásványtan, Földtan |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/24838 |
| Tartalmi kivonat: | Wadi Dunqash and Wadi Arayis in the central and southern Eastern Desert of Egypt are characterized by the presence of metamorphosed dismembered ophiolite sequence. This sequence consists of harzburgiteserpentinite, pyroxenite-chlorite schist; normal and sheared metagabbros; metabasalt and meta-andesite and their schists. Major and trace element studies indicate that the present sequence can be comparable with the ophiolitic ultramafic-mafic cumulates. The metagabbros and metavolcanics pertain to a high-Ti ophiolite, exhibit tholeiitic and minor calc-alkaline nature, derived from ocean floor-island arc transitional basalts, suggest their probable back-arc environment. |
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| Terjedelem/Fizikai jellemzők: | 129-141 |
| ISSN: | 0365-8066 |