Apport de l'analyse séquentielle dans la mise en évidence de cortèges sédimentaires de bas niveaux marins de 3ième ordre dans le bloc Môyo, marge d'Abidjan, Côte d'Ivoire/Contribution of sequential analysis in the identification of lowstand systems tract of 3rd order in Môyo block, Abidjan margin, Ivory Coast

This work presents results of analysis of 3rd order sedimentary Megasequence of Cenomanian- Lower Senonian in two wells in Môyo block located on Abidjan margin in Côte d'Ivoire. It is based on the logging and sedimentological data supported by few biostratigraphic data. This analysis helped to discriminate systems tracts of lowstand systems tracts, Transgressive systems tracts and Highstand systems tracts in the depositional megasequence. The lithology of this Megasequence consists of interbedded sandstone and sand within clay formation. Lowstand Systems Tracts are rich in sand and sandstone and accumulated in an environment extending from coast to mid-continental shelf.