1. The Institute of Earth Sciences Hebrew University of Jerusalem Jerusalem Israel
2. Scripps Institution of Oceanography University of California San Diego La Jolla California USA
3. Servicio Arqueomagnetico Nacional and Laboratorio Interinstitucional de Magnetismo Natural Instituto de Geofísica, Universidad Nacional autónoma de México Morelia Mexico
4. M. Nodia Institute of Geophysics Ivane Javakhishvili Tbilisi State University Tbilisi Georgia
5. Institute of Archeology Ivane Javakhishvili Tbilisi State University Tbilisi Georgia
6. Institute of Geoscience and Earth Resources (IGG‐CNR) Italian National Research Council (CNR) Pisa Italy