HACHEMAOUI , Oubaida

The presence of Mesozoic mafic rocks in southwestern Algeria has long been known. Recent studies indicate that this rock is mainly composed of tholeiitic dolerites emplaced at the end of Triassic, during the opening of the central Atlantic Ocean, 201 million years ago. These dolerites are part of a large magmatic province, called the Central...

Des cheminées doléritiques sont connues dans le bassin de Tindouf en Algérie depuis les travaux de Jaqcuemont (1952) et Gevin (1960), et sont supposées appartenir à la Province Magmatique de l'Atlantique Central (CAMP). Le bassin de Tindouf est caractérisé par une abondance de formations magmatiques appartenant à la CAMP (Chabou, 2008; Bersi,...

International audience

Doleritic pipes are known in the Tindouf Basin in Algeria since the works of Jaqcuemont (1952) and Gevin (1960), and are assumed to belong to the Central Atlantic Magmatic Province (CAMP). The Tindouf Basin is characterized by an abundance of magmatic formations belonging to the CAMP (Chabou, 2008; Bersi, 2016) which outcrop mainly as sills and...

International audience

International audience

Primitive mafic rocks are of primary importance to constraint mantle source compositions and to modeling magma evolution processes. These rocks are thought to be generated by partial melting of a mantle source without modification by crystal fractionation, contamination or accumulation. Primitive mafic rocks are characterized by high MgO (or...

Le bassin de Tindouf en Algérie a connu une intense activité magmatique datée de la limite Trias/Jurassique et appartenant à la grande province magmatique de l'Atlantique central (CAMP). Ce magmatisme s'est manifesté dans la région par la mise en place d'immense sills doléritiques au sein de la couverture paléozoïque du bassin et de longs dykes...