The late Neoproterozoic-early Palaeozoic extension along the West African craton and the Peri-Gondwanan terranes - Archive ouverte HAL Access content directly
Journal Articles Geological Society Special Publication Year : 2008

The late Neoproterozoic-early Palaeozoic extension along the West African craton and the Peri-Gondwanan terranes

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Abstract

In the westernmost part of the High Atlas, two Palaeozoic formations, rich in mafic volcanic rocks, are distinguished. They belong to different structural blocks created during the Variscan orogeny. New U–Pb dating yields an Early Cambrian age. The basaltic lavas have the composition of continental tholeiites and the magmatic signature of an initial rifting tectonic setting. They are related to the western Moroccan Cambrian rift. Their geodynamical context could be a passive margin initiated from an active rift that aborted in the Middle Cambrian.

Dates and versions

insu-00375563 , version 1 (15-04-2009)

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André Pouclet, Hassane Ouazzani, Abdelilah Fekkak. The late Neoproterozoic-early Palaeozoic extension along the West African craton and the Peri-Gondwanan terranes. Geological Society Special Publication, 2008, 297, pp.303-327. ⟨10.1144/SP297.15⟩. ⟨insu-00375563⟩
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