This ethnocultural group was autochthonous to the Greater Maghreb and the western part of the Islamic world, an area stretching from Tunisia to Spain.
Historic records of religion in the Maghreb region show its gradual inclusion in the Classical World, with coastal colonies established first by Phoenicians, some Greeks, and later extensive conquest and colonization by the Romans.
The stacking patterns of the internalites (internal wave deposits) in the Jubaila Fm suggests alternating periods with different internal waves activity, namely different strength and bathymetric position of the pycnocline, and intermittent production and accumulation of the neritic lime mud.
Note : for 2nd generation born in France only individuals under 60 are taken into account.
According to Institut national de la statistique et des études économiques (the French National Institute for Statistics and Economic Studies), 16% of newborns in France between 20 have at least one Maghrebi grandparent born in the Greater Maghreb.
In 2005, the percentage of young people under 18 of Maghrebi origin (at least one immigrant parent) were about 7% in Metropolitan France, 12% in Île-de-France, 13% in Lyon, 21% in Perpignan, 22% in the department of Seine-Saint-Denis, 37% in 18th arrondissement of Paris and 40% in several arrondissements of Marseille.
The middle facies belt is made of microbial-coral-stromatoporoid buildups.
The upper facies belt consists of the following shallow water lithofacies with , green algae, foraminifers, peloids and oolitic grainstones, and oolitic cryptomicrobial mudstone to grainstone.