1. BRGM Orléans France
2. CNRS, ISTO, UMR 7327 Orléans France
3. Université d'Orléans, ISTO, UMR 7327 Orléans France
4. Department of Geology Kansas State University Manhattan KS USA
5. Department of Geology, Faculty of Sciences Hon. Pr. Mohamed V University Rabat Morocco
6. Department of Geology, Faculty of Sciences Aïn Chock Hassan II University of Casablanca Casablanca Morocco