During the Algerian-French SPIRAL survey aimed at investigating the deep structure of the Algerian margin and basin, two coincident wide-angle and reflection seismic profiles were acquired in central Algeria, offshore Greater Kabylia, together with gravimetric, bathymetric and magnetic data. This ~260 km-long offshore-onshore profile spans the Balearic basin, the central Algerian margin and the Greater Kabylia block up to the southward limit of the internal zones onshore. Results are obtained from modeling and interpretation of the combined data sets.Please note that this is an author-produced PDF of an article accepted for publication following peer review. The definitive publisher-authenticated version is available on the publisher Web site.slope. This disequilibrium is likely responsible for the peculiar asymmetrical shape of the crustal neck that may thus be a characteristic feature of inverted rifted margins. Highlights► Modeling of deep seismic data images the deep structure of the Algerian margin. ► The Algerian margin offshore Greater Kabylia is a narrow, magma-poor rifted margin. ► Margin inversion may trigger lower crust seaward flow due to isostatic disequilibrium. ► A 3-layer thin oceanic crust reveals postaccretion volcanism in the Algerian basin. ► A two-step Miocene evolution of the West Algerian backarc basin is proposed.

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