1. Univ Lyon, Univ Lyon 1, ENS Lyon, CNRS, LGL-TPE, 2 Rue Raphael Dubois, F-69622 Villeurbanne, France, France.
2. Institut d'Astrophysique Spatiale, Univ Paris Sud, CNRS, UMR 8617, Univ Paris-Saclay, Bat 120-121, F-91405 Orsay, France.
3. Open Univ, Dept Earth & Environm Sci, Milton Keynes MK7 6AA, Bucks, England.
4. Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, London SW7 2AZ, England.
5. Department of Earth Sciences, Natural History Museum, London, United Kingdom.
6. Univ G DAnnunzio, IRSPS, I-65127 Pescara, Italy.
7. Department for Geosciences, Centre for Earth Evolution and Dynamics (CEED), University of Oslo, Oslo, Norway.