Paleogeography of the Eosahabi River in Libya: New insights into the mineralogy, geochemistry and paleontology of Member U1 of the Sahabi Formation, northeastern Libya

► The source of Sahabi fossiliferous sediments (N Libya) has remained controversial. ► Mineralogical and geochemical data indicate very mature and re-processed materials. ► Old continental sediment component and felsic source with no basaltic contribution. ► Source to an upland area of Precambrian continental origin in northeastern Chad.