TITLE:
Lithostratigraphy and Characterisation of Paleocene Limestones for Optimal Exploitation (Senegal, West Africa): Comparative Study of the Bandia and Popenguine Quarries
AUTHORS:
Mohamadou Moustapha Thiam, Adama Dione, Moumar Dieye, Diakher Hélène Madioune, Diodio Diouf
KEYWORDS:
Stratigraphy, Paleocene, Geochemical, Limestone, Bandia, Popenguine
JOURNAL NAME:
Geomaterials,
Vol.13 No.3,
July
18,
2023
ABSTRACT: Limestones of different facies in the Senegal basin are most commonly used as aggregates, regardless of their petrographic properties. These differences may influence their behaviour. The aim of this paper is to study the stratigraphy and characterise the limestones of the Bandia and Popenguine quarries. Sampling and geochemical and geotechnical characterisation were carried out on these limestones. The results show the presence of several very different facies in the Paleocene formation. The geochemical study shows that the Bandia limestones (Bd2) have the highest CaCO3 percentages (98.54%) and the highest SiO2 percentages were recorded in the Popenguine limestones (Pop2). The study also gives MDE values of 22.38 and LA of 22, which are acceptable for use in road construction. It is important to carry out a complete study in order to select the right materials for optimal use.