摘要
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.
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.
作者
Allialy Marc Ephrem
Diakite Sekou
Houssou N’guessan Nestor
Kouadio Fossou Jean-Luc
Adingra Martial Pohn Koffi
Allialy Marc Ephrem;Diakite Sekou;Houssou N’guessan Nestor;Kouadio Fossou Jean-Luc;Adingra Martial Pohn Koffi(Laboratory of Geology, Mineral and Energy Resources (LGRME), Faculty of Earth Science and Mineral Resources, Félix Houphoueë,t Boigny University, Abidjan, C ô,te d’Ivoire;Laboratory of Geology, Mineral and Energy Resources (LGRME), Faculty of Earth Science and Mineral Resources, Félix Houphoueë,t Boigny University, Abidjan, Cô,te d’Ivoire)
