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Torró, L., Proenza, J.A., Aiglsperger, T., Bover-Arnal, T., Villanova-de-Benavent, C., Rodríguez-García, D., Ramírez, A., Rodríguez, J., Mosquea, L.A. and Salas, R. (2017) Geological, Geochemical and Mineralogical Characteristics of REE-Bearing Las Mercedes Bauxite Deposit, Dominican Republic. Ore Geology Reviews, 89, 114-131.
https://doi.org/10.1016/j.oregeorev.2017.06.017

has been cited by the following article:

• TITLE: Petrological and Statistical Studies of the Limbiko Bauxite Deposit, Republic of Guinea

  AUTHORS: Abdoulaye Kadiatou Diallo, Mohamed Samuel Moriah Conte, Oumar Barou Kaba, Aly Soumah, Mohamed Camara

  KEYWORDS: Bauxite, Alteration Crust, Aleuro-Argillite, Dolerite, Gibbsite

  JOURNAL NAME: International Journal of Geosciences, Vol.14 No.4, May 4, 2023

  ABSTRACT: The increasing demand for Aluminium pushes the miners to multiply the research in order to answer this demand. The objective of this work is to characterize the bauxitic deposit of Limbiko. The methodology consists in collecting samples, and establishing stratigraphic logs, sections and geological maps. The analyses were carried out in the laboratory of the Company des Bauxites de Guinea. Statistical methods were used to process the geochemical data. The study area is characterized by sedimentary formations of the Devonian, in which the dolerites of the Mesozoic were injected. It is on these Devonian and Mesozoic formations that the Limbiko bauxite deposit was developed. The stratigraphic logs show the succession of formations. The parent rock is surmounted by an alteration crust. The petrographic study is based on the bauxitic and transitional zones characterized by ferruginous laterites. Both zones contain some ferriplantite. Mineralogical analysis shows the presence of gibbsite, goethite, alumogoethite, rutile and clay minerals. The geochemical study of the major elements shows that the more the contents of SiO2, Fe2O3 decrease, the more the content of Al2O3 increases and those of TiO2, Al2O3 increase in the same direction. The PCA confirms the mineralogical results by classifying the samples into clay, bauxite and ferrite.