Granitoides Neoproterozoicos asociados al complejo ofiolítico de Bou-Azzer (Anti-Atlas, Marruecos)Nuevas dataciones SHRIMP, geoquímica e isotopos Sr-Nd.

  1. M. Ikenne 1
  2. M. Souhassou 1
  3. B. Cousens 2
  4. P. Montero 3
  5. E.H. Beraaouz 1
  6. F. Bea 3
  7. F. Haissen 4
  8. A.H. Karfal 5
  9. S. Ilmen 5
  10. S. Belkacim 1
  11. A. Toummite 6
  12. F. Askour 1
  13. L. Maacha 5
  14. M. Zouhair 5
  1. 1 Université Ibn Zohr
    info

    Université Ibn Zohr

    Agadir, Marruecos

    ROR https://ror.org/006sgpv47

  2. 2 Carleton University, Canada
  3. 3 Universidad de Granada
    info

    Universidad de Granada

    Granada, España

    ROR https://ror.org/04njjy449

  4. 4 Université Hassan II de Casablanca
    info

    Université Hassan II de Casablanca

    Casablanca, Marruecos

    ROR https://ror.org/001q4kn48

  5. 5 MANAGEM Group
  6. 6 Université Moulay Ismaïl
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Zeitschrift:
Geotemas (Madrid)

ISSN: 1576-5172

Datum der Publikation: 2021

Titel der Ausgabe: X Congreso Geológico de España

Nummer: 18

Seiten: 431

Art: Artikel

DIALNET GOOGLE SCHOLAR lock_openOpen Access editor

Andere Publikationen in: Geotemas (Madrid)

Zusammenfassung

Various syntectonic granitoid bodies intrude the Neoproterozoic ophiolitic complex of Bou Azzer, namely, the quartzdiorites of Ousdrate; Ait Hmane; Bou Azzer; Bou Izbane, Ait Abdellah and the post-tectonic granodiorite of Bleida. New SHRIMP U-Pb data on zircons confirm the presence of a syntectonic magmatic episode in Bou-Azzer inlier between 640 and 660 Ma, while the Bleida post-tectonic granodiorite (559±4 Ma) can be related to the LIP of the post-collisional volcano-plutonic complex of the Ouarzazate Group. New geochemical data confirm the high-K calc-alkaline features and the adakitic affinity previously proposed while new Sr and Nd isotopic data indicate the juvenile origin of this magmatism. The geodynamic con- text of the genesis and emplacement of these granitoids can be discussed using this new data in the frame of models recently proposed for the Panafrican events the Central part of Anti-Atlas.

Fuente de los datos: Dialnet