Author/Authors :
EL HADI, Hassan Hassan II University of Casablanca - Faculty of Sciences - Laboratory of Applied Geology, Geomatic Environnement, Morocco , TAHIRI, Abdelfatah Mohammed V University of Rabat - Scientific Institute - Department of Earth Sciences, Laboratory of Geology and Remote sensing,GEOTEL, URAC46, Morocco , EL MAIDANI, Ayoub Hassan II University of Casablanca - Faculty of Sciences - Department of Earth Science, Laboratory of Moroccan Orogens Geodynamics, Morocco , SADDIQI, Omar Hassan II University of Casablanca - Faculty of Sciences - Department of Earth Science, Laboratory of Moroccan Orogens Geodynamics, Morocco , SIMANCAS, Fernando Universidad de Granada - Facultad de Ciencias - Departamento de Geodinamica, Spain , LODEIRO, Francisco González Universidad de Granada - Facultad de Ciencias - Departamento de Geodinamica, Spain , AZOR, Antonio Universidad de Granada - Facultad de Ciencias - Departamento de Geodinamica, Spain , MARTINEZ-POYATOS, David Universidad de Granada - Facultad de Ciencias - Departamento de Geodinamica, Spain , TAHIRI, Mounia Hassan II University of Casablanca - Faculty of Sciences - Laboratory of Applied Geology, Geomatic Environnement, Morocco , DE LA ROSA DIAZ, Jesus University of Huelva, Campus de El Carmen - Center for Research in Sustainable Chemistry (CIQSO), Spain
Abstract :
The northwestern Moroccan Meseta registered two important and successive volcanic events from the Early Permian to the Late Triassic: (1) a calc-alkaline bimodal volcanism consisting of basalts to trachy-andesites and dacites to rhyodacites in the Early Permian (Autunian); and (2) a tholeiitic volcanism of basalts and andesites, magmatic marker of the Central Atlantic evolution, in the Middle and the Late Triassic. The geochemical study of those mafic and acidic rocks demonstrates the enriched character of a mantle previously metasomatized by crustal component, probably during periods of ancient subduction (s) (Variscan?).
NaturalLanguageKeyword :
Petrography , Geochemistry , Geodynamic setting context , Permian–Triassic volcanism , northwestern Moroccan Meseta
