Source: https://www.researchgate.net/profile/Adiss-Fatiou/publication/338936543_Sedimentation_et_conditions_de_mise_en_place_des_oolithes_ferrugineuses_de_la_formation_du_Continental_terminal_du_Bassin_de_Kandi_Nord-Est_Benin/links/5e33ee08458515072d7126f9/Sedimentation-et-conditions-de-mise-en-place-des-oolithes-ferrugineuses-de-la-formation-du-Continental-terminal-du-Bassin-de-Kandi-Nord-Est-Benin.pdf