Granitoids of Sukari Gold Mine, Eastern Desert, Egypt - Sedki, Tarek;Mohamed, Haroun A.;Ali, Shehata
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The Sukari granitoid pluton is situated in the southern central Eastern Desert of Egypt and is considered as one of the best examples of the gold-bearing granites in the Arabian Nubian Shield (ANS).It consists of coarse- to medium-grained alkali-feldspar granite, syenogranite and monzogranite intruded the volcano-sedimentary sequences and metagabbro-diorite complex. Geochemically, these granitoids are metaluminous to peraluminous in character. Moreover, they show pronounced LREE-enriched patterns and negative Eu anomalies that indicate plagioclase fractionation. rocks are typical of within…mehr

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Produktbeschreibung
The Sukari granitoid pluton is situated in the southern central Eastern Desert of Egypt and is considered as one of the best examples of the gold-bearing granites in the Arabian Nubian Shield (ANS).It consists of coarse- to medium-grained alkali-feldspar granite, syenogranite and monzogranite intruded the volcano-sedimentary sequences and metagabbro-diorite complex. Geochemically, these granitoids are metaluminous to peraluminous in character. Moreover, they show pronounced LREE-enriched patterns and negative Eu anomalies that indicate plagioclase fractionation. rocks are typical of within plate granites generated in tensional environment. They belong to ferroan/A-type granites, particularly A2-type suggesting post-collisional setting. Their high SiO2, Al2O3 and low MgO contents along with the low Ce/Pb ratios reflect derivation from melting crustal source. The kinematic indicators are represented by mylonites, quartz fish and augen structures. Mineralization in Sukari area foundas quartz veins, stockworks and brecciated veins.
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Autorenporträt
Tarek Sedki, geolog-razwedchik, Shalateen Mineral Resource Co. Okonchil geologicheskoe otdelenie fakul'teta estestwennyh nauk Uniwersiteta Minii. Okonchil magisterskuü dissertaciü po mineralam, geohimii i twerdym porodam. Opublikowal mezhdunarodnoe issledowanie pod nazwaniem "Neoproterozojskie granitoidy Sukari, Vostochnaq pustynq, Egipet: Petrologicheskie i strukturnye posledstwiq.