(4.74) Olga Yu. Koshel (Vernadsky State Geological Museum of RAS, Moscow); Lahfid Abdeltif (BRGM, French Geological Survey, Orlean); Sylvain Delchini (Ph.D., BRGM, French Geological Survey, Orlean); Stanislav D. Ivanov (Ph.D., Smidt Institute of Physics of t