1. Department of Chemical and Geological Sciences University of Modena and Reggio Emilia Via Campi 103 I-41125 Modena Italy
2. Instituto Andaluz de Ciencias de la Tierra (CSIC-UGR) Av. de las Palmeras, 4 18100 Armilla, Granada Spain
3. Department of Life Sciences University of Modena and Reggio Emilia Via Campi 103 I-41125 Modena Italy
4. ALBA Synchrotron Light Source Crta. BP 1413, Km. 3.3 08290, Cerdanyola Del Vallès Barcelona Spain