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International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Monday 04 March 2024

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In Press: Petro-structural characterization of geological rocks in the Soubré sector (Sassandra-Cavally domain, Southwestern Côte d’Ivoire)



                 

Augustin Yao Koffi1, Martial Pohn Koffi Adingra2, Raoul Koffi Teha3, Jean-Louis Nabi4, Mohamed Pégnalogo Ouattara5, Ephrem Marc Allialy6, and Alain Nicaise Kouamelan7

1 Laboratoire de Géologie du Socle et de Métallogénie, UFR Sciences de la Terre et des ressources Minières, Université Félix Houphouët-Boigny Abidjan-Cocody, UFR STRM, 22 BP 582 Abidjan 22, Côte d’Ivoire
2 Laboratory of Geology, Mineral and Energy Resources (LGRME), Training and research Unit and Earth Science and Mineral Resources, Félix Houphouët Boigny University, Abidjan, Côte d’Ivoire
3 Laboratory of Geology, Mineral and Energy Resources (LGRME), Training and research Unit and Earth Science and Mineral Resources, Félix Houphouët Boigny University, Abidjan, Côte d’Ivoire
4 Laboratory of Geology, Mineral and Energy Resources (LGRME), Training and research Unit and Earth Science and Mineral Resources, Félix Houphouët Boigny University, Abidjan, Côte d’Ivoire
5 Laboratory of Geology, Mineral and Energy Resources (LGRME), Training and research Unit and Earth Science and Mineral Resources, Félix Houphouët Boigny University, Abidjan, Côte d’Ivoire
6 Laboratory of Geology, Mineral and Energy Resources (LGRME), Training and research Unit and Earth Science and Mineral Resources, Félix Houphouët Boigny University, Abidjan, Côte d’Ivoire
7 Laboratory of Geology, Mineral and Energy Resources (LGRME), Training and research Unit and Earth Science and Mineral Resources, Félix Houphouët Boigny University, Abidjan, Côte d’Ivoire

Original language: English

Copyright © 2024 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


The Sassandra-Cavally (SASCA) domain (SW Côte d’Ivoire) marks the transition between the Archean Kenema-Man craton and the Paleoproterozoic Baoulé-Mossi domain. The methodology applied to study the rocks of the Soubré area considers both field and laboratory work. The Soubré area of the SASCA domain is characterized by migmatitic gneisses, metagranites and garnet micaschists. Migmatitic gneisses are composed of quartz, feldspar, biotite, chlorite, muscovite and opaque minerals, with occasional amphibole rods. Metgranites, on the other hand, are composed of quartz, feldspars such as plagioclase and microcline, biotite, accessory minerals and opaque minerals. Garnet-bearing micaschists are composed of quartz, biotite, muscovite, garnet, plagioclase with accessory and opaque minerals. Structural observations in the Soubré area reveal a first foliation (S1) trending NW-SE, dipping between 40° and 85° towards SW and associated with a N080-trending shear with a sinistral component, as well as folds whose axial planes are parallel to S1. This first foliation is intersected by a second (S2) trending NE-SW with dips of 60-85° either towards NW or SE. The S2 foliation is associated with a N166 shear with a sinistral component and folds whose axial planes are parallel to S2. All these structural observations in the Soubré sector would be compatible with the structures observed in the SASCA domain on the coast from Grand-Béréby to Tabou.

Author Keywords: Petrography, analysis structural, Sassandra-Cavally domain, Soubré.