Mapping and Petro-Structural Study of the Geological Formations of the Alépé Region (South-East of Côte d’Ivoire)  

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)

机构地区：[1]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 [2]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

出　　处：《International Journal of Geosciences》2023年第2期187-208,共22页地球科学国际期刊（英文）

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.

关 键 词：Lithostructural GEOCHEMISTRY BIRIMIAN Comoe Basin Alépé Côte d’Ivoire 

分 类 号：P58[天文地球—岩石学]