1. Engineering School of Sfax Road of Sokra km 4 Sfax 3038 Tunisia
2. GEOGLOB Laboratory FSS (LR13ES23) University of Sfax Road of Sokra Sfax 3028 Tunisia
3. Laboratoire de Spectroscopie et Caractérisation Optique des Matériaux La.S.C.O.M (LR17 ES 09) FSS University of Sfax Route de Soukra BP 802 Sfax 3028 Tunisia
4. Sedimentary Petrology Laboratory Liège University Allée du Six Août, 12 Liège 4000 Belgium
5. Faculty of Sciences of Sfax University of Sfax Road of Sokra Sfax 3028 Tunisia