Modélisation magnétique de la suture ophiolitique de Bou Azzer–El Graara (Anti-Atlas central,Maroc). Implications sur la reconstitution géodynamique panafricaine |
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| Authors: | Abderrahmane Soulaimani Mohammed Jaffal Lhou Maacha Azzouz Kchikach Abdessamad Najine Abdellatif Saidi |
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| Institution: | 1. Faculté des sciences Semlalia, université Cadi-Ayyad, BP 2390, Marrakech, Maroc;2. Faculté des sciences et techniques, université Cadi-Ayyad, BP 549, Marrakech, Maroc;3. Reminex, Managem, Groupe ONA, 52, av. Hassan-II, Casablanca, Maroc;4. Faculté des sciences et techniques, université Cadi-Ayyad, Béni-Méllal, Maroc |
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| Abstract: | Aeromagnetic data of the Anti-Atlas Mountains show an important magnetic anomaly along the ‘Major Anti-Atlas Fault’, produced by different mafic and ultramafic rocks of a Neoproterozoic ophiolite complex. The magnetic modelling of Bou Azzer–El Graara ophiolitic suture shows a deep-seated anomaly through the upper continental crust corresponding to a north-dipping subduction. The polarity of the Pan-African subduction in the Anti-Atlas is therefore compatible with the contemporaneous Pan-African orogenic belts, where polarity of subduction dipped away from the West African Craton during the amalgamation of Western Gondwana. To cite this article: A. Soulaimani et al., C. R. Geoscience 338 (2006). |
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| Keywords: | Modélisation Magnétisme Ophiolites Panafricain Anti-Atlas Maroc Modelling Magnetism Ophiolites Pan-African Anti-Atlas Morocco |
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