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Flicoteaux, R. (1982) Genèse du phosphate alumineux au Sénégal Occidentale: Etape et Guide de l’altération. Strasbourg, Institut de géologie, Univ. Louis Pasteur de Strasbourg, Mémoire 67.

has been cited by the following article:

  • TITLE: Petrography and Mineralogy of the Eocene Phosphate Deposit of Tobène (Taïba, Senegal)

    AUTHORS: Ndèye Penda Dione, Moustapha Diagne, Mouhamadou Bachir Diouf, Mamadou Fall, Pierre Giresse

    KEYWORDS: Tobène, Phosphate, Petrography, Mineralogy, Alteration

    JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.6 No.5, May 25, 2018

    ABSTRACT: The Tobène deposit forms, with those of NdomorDiop and KeurMor Fall, the large phosphate deposit of Ta?ba. The Tobène site has been the subject of lithostratigraphic, biostratigraphic, mineralogical, petrographic and geochemical studies. The lithostratigraphic and biostratigraphic studies dated the series from Lutetian to Bartonian composed of five lithological units, which are assembled by [1] in three formations. The mineralogical study shows three groups of minerals associated with the different phosphatic facies identified in the various sectors of Tobène: 1) characteristic minerals of sedimentological conditions; 2) minerals of diagenetic origin; 3) minerals of alteration. The petrographic study allowed an inventory of the constituting visible grains of the microfacies as well as the different phases of diagenetic and post-diagenetic transformations that may have affected them. It thus appears that the phosphatic ore of Tobène has undergone an extensive diagenesis (compaction, dissolution-recrystallization, epigenesis) to which a relatively intense ferruginization has been added.