1. Institute of Earth Sciences University of Lausanne (UNIL) Lausanne Switzerland
2. Department of Geology University of Georgia (UGA) Franklin College of Arts and Sciences Athens USA
3. Department of Mathematics and Geosciences University of Trieste Trieste Italy
4. Bayerisches Geoinstitut, University of Bayreuth Bayreuth Germany
5. Institute of Geosciences and Earth Resources IGG‐CNR Pavia Italy