TITLE:
Mapping and Petro-Structural Study of the Geological Formations of the Alépé Region (South-East of Côte d’Ivoire)
AUTHORS:
Allialy Marc Ephrem, Diakite Sekou, Houssou N’guessan Nestor, Kouadio Fossou Jean-Luc, Adingra Martial Pohn Koffi
KEYWORDS:
Lithostructural, geochemistry, Birimian, Comoe Basin, Alépé, Côte d’Ivoire
JOURNAL NAME:
International Journal of Geosciences,
Vol.14 No.2,
February
9,
2023
ABSTRACT: This study focuses on the petrographic and structural
characteristics of the geological formations of the Alépé region in the Comoé
basin. The petrographic characterization allows us to retain that the study
area abounds in a variety of lithologies: amphibole metagranite, metadiorite,
amphibolite and metagrauwacke. The lineament map attests that the study area
was affected by polyphase tectonics (ductile and brittle), all these
deformations have NW-SE to NNW-SSE; NW-ESE
to NW-SE; ENE-OSW and NE-SW directions. Coupled geochemical data show
that the protoliths of the studied rocks evolve between granites and gabbros
that are weakly to moderately be altered. They would originate from continental crust and mantle and would
be emplaced in collision contex.