International Journal of Geosciences

Volume 10, Issue 12 (December 2019)

ISSN Print: 2156-8359   ISSN Online: 2156-8367

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Geology and Geochemistry of the Chromiferous Mineralization in the External Zone of the Pan-African Dahomeyides Belt, Northwestern Benin (Gulf of Guinea, West Africa)

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DOI: 10.4236/ijg.2019.1012061    154 Downloads   292 Views  

ABSTRACT

Occurrences of chromium mineral exist in Bénin within the external nappes of the Pan-African Dahomeyides belt. These chromite deposits are podiform types and hosted in the serpentinite. Blackish color, the chromite appears under microscope in transmitted light, as cracked phenocrystals with tangles of the serpentinite venules. Chemical analyses using X-ray fluorescence spectrometer showed the chromite ore consists of about 38% Cr2O3 and total (Cr2O3 + Al2O3) is 60%. This chromiferous mineralisation resulted from the magmatic cumulates formation by fractional crystallization of an ultramafic magma.

Cite this paper

Glodji, L. , Saïzonou, R. , Adjo, F. , Fatiou, A. , Yessoufou, S. and Kanon, B. (2019) Geology and Geochemistry of the Chromiferous Mineralization in the External Zone of the Pan-African Dahomeyides Belt, Northwestern Benin (Gulf of Guinea, West Africa). International Journal of Geosciences, 10, 1068-1080. doi: 10.4236/ijg.2019.1012061.

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