Chemostratigraphic Characterization Tests on Sedimentary Formations in the Côte D’Ivoire Offshore Basin: Case of A-X and B-X Wells  

作　　者：Kokoa Chia Marie Reine Kra Akoua Clarisse Irié Bi Trazié Gaël Coulibaly Sougo Aoua Affian Kouadio Kokoa Chia Marie Reine;Kra Akoua Clarisse;Irié Bi Trazié Gaël;Coulibaly Sougo Aoua;Affian Kouadio(UFR-STRM, Félix Houphouë,t-Boigny University of Abidjan, Abidjan, Cô,te d’Ivoire;Departement of Geosciences, Peloforo Gon Coulibaly University of Korhogo, Korhogo, Cô,te d’Ivoire)

机构地区：[1]UFR-STRM, Félix Houphouë,t-Boigny University of Abidjan, Abidjan, Cô,te d’Ivoire [2]Departement of Geosciences, Peloforo Gon Coulibaly University of Korhogo, Korhogo, Cô,te d’Ivoire

出　　处：《Open Journal of Applied Sciences》2023年第10期1820-1833,共14页应用科学（英文）

摘　　要：The tests performed with two hundred and thirty-nine (239) samples from the A-X and B-X drillings help to know their sedimentological and chemostratigraphic characters. In sedimentological term formations are composed of sand, sandstone, limestone, siltstone and argillite that alternate along the drill. In chemostratigraphic term two megasequences (MS1 and MS2) have been identified. A correlation of chemostratigraphic data completed by the lithology results allowed a subdivision of oil wells that shows two main types of deposits environments. First, a proximal marine environment to continental and to Albian marked by a detrital flow deducted from the concentrations evolution of indicator elements of terrigenous material that are K, Mg, and Rb. On the other hand, a deep to shallow marine environment of Cenomanian to Paleocene marked by the presence of predominantly clay sediments and abundant glauconite in the lower Senonian. Nevertheless, there is a transition or intermediate environment that is characterized by the presence of glauconite and detrital flows.The tests performed with two hundred and thirty-nine (239) samples from the A-X and B-X drillings help to know their sedimentological and chemostratigraphic characters. In sedimentological term formations are composed of sand, sandstone, limestone, siltstone and argillite that alternate along the drill. In chemostratigraphic term two megasequences (MS1 and MS2) have been identified. A correlation of chemostratigraphic data completed by the lithology results allowed a subdivision of oil wells that shows two main types of deposits environments. First, a proximal marine environment to continental and to Albian marked by a detrital flow deducted from the concentrations evolution of indicator elements of terrigenous material that are K, Mg, and Rb. On the other hand, a deep to shallow marine environment of Cenomanian to Paleocene marked by the presence of predominantly clay sediments and abundant glauconite in the lower Senonian. Nevertheless, there is a transition or intermediate environment that is characterized by the presence of glauconite and detrital flows.

关 键 词：CHEMOSTRATIGRAPHY CHARACTERIZATION Sediments Offshore Basin Albian-Paleocene Ivory Coast 

分 类 号：P53[天文地球—古生物学与地层学]