The granitic bodies of the High Moulouya: granitic laccoliths in the eastern Meseta of Morocco; [Les massifs granitiques de la Haute-Moulouya: laccolites granitiques en Meseta marocaine orientale]

The High-Moulouya granites from Aouli and Bou-Mia contain magmatic structures, generated during emplacement in the crust, which provide evidence for laccolithic injection. The first magmas, injected along normal faults, were gabbroic in composition and cause a partial melting of pelitic country-rocks. Evidence for magmatic mixing is provided by various enclaves in the granitoids. Granitoid emplacement in the oriental Meseta occurred in structural transtensional environment, compatible with the structures of the occidental Meseta. There is an abridged English version. -English summary